{"id":2083,"date":"2022-07-02T13:26:08","date_gmt":"2022-07-02T11:26:08","guid":{"rendered":"https:\/\/www.nerdiy.de\/?p=2083"},"modified":"2022-07-02T13:26:13","modified_gmt":"2022-07-02T11:26:13","slug":"evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red","status":"publish","type":"post","link":"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/","title":{"rendered":"HowTo: Raspberry Pi - MPR121 aanraaksensor evalueren via I2C en Node Red"},"content":{"rendered":"<p>Dankzij de I2C-bus kan de Raspberry Pi worden uitgerust met een groot aantal praktische sensoren en actuatoren. De MPR121 biedt een (naar mijn mening) zeer elegante manier voor gebruikersinvoer. <\/p>\n\n\n\n<p>De MPR121 is een controller die het mogelijk maakt om tot 12 aanraakelektroden te evalueren. Je kunt er tot 12 elektroden mee instellen, die vervolgens als knoppen kunnen worden gebruikt. Afhankelijk van de structuur van de elektrode kun je deze aanrakingen ook door dunne materialen of zelfs door naderen (zonder aanraken) waarnemen.<\/p>\n\n\n\n<p>Deze gebruik ik bijvoorbeeld op mijn MagicMirror om het scherm handmatig aan en uit te kunnen zetten. <\/p>\n\n\n\n<p>Alles wat je nodig hebt om de MPR121 via NodeRed uit te lezen en te reageren op toetsaanslagen vind je in het volgende artikel.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n<h2><span style=\"color: #ff0000;\">Veiligheidsinstructies <\/span><\/h2>\r\n<p><span style=\"color: #ff0000;\">Ik weet dat de volgende opmerkingen altijd een beetje vervelend zijn en onnodig lijken. Helaas hebben veel mensen die &quot;beter&quot; wisten door onvoorzichtigheid ogen, vingers of andere dingen verloren of zichzelf verwond. Gegevensverlies is in vergelijking bijna te verwaarlozen, maar zelfs dit kan erg vervelend zijn. Neem daarom vijf minuten de tijd om de veiligheidsinstructies te lezen. Omdat zelfs het coolste project geen blessure of andere problemen waard is.<\/span><br \/><strong><em><a href=\"https:\/\/nerdiy.de\/nl\/veiligheidsinstructies\/\"><span style=\"color: #ff0000;\">https:\/\/www.nerdiy.de\/sicherheitshinweise\/<\/span><\/a><\/em><\/strong><\/p>\r\n<h2>Affiliate links \/ reclame links<\/h2>\r\n<p><em>De hier vermelde links naar online winkels zijn zogenaamde affiliate-links. Als u op zo&#039;n affiliate-link klikt en via deze link een aankoop doet, ontvangt Nerdiy.de een commissie van de betreffende onlineshop of aanbieder. De prijs verandert voor jou niet. Als u via deze links uw aankopen doet, steunt u Nerdiy.de om in de toekomst andere nuttige projecten aan te kunnen bieden. \ud83d\ude42\u00a0<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Eisen<\/h2>\n\n\n\n<p><strong>Handige artikelen:<br><\/strong>Om nieuwe nodes te kunnen installeren, moet NodeRed natuurlijk al ge\u00efnstalleerd zijn.<br>Hoe je een RaspberryPi voorbereidt en vervolgens NodeRed erop installeert, wordt beschreven in de volgende artikelen.<\/p>\n\n\n\n<p>In de volgende drie artikelen wordt beschreven wat er moet gebeuren om de RaspberryPi voor te bereiden:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong><em><a href=\"https:\/\/nerdiy.de\/nl\/raspberrypi-setup-voor-nerds\/\">RaspberryPi \u2013 setup voor nerds!<\/a><\/em><\/strong><\/li><li><strong><em><a href=\"https:\/\/nerdiy.de\/nl\/raspberrypi-de-eerste-configuratie\/\">RaspberryPi \u2013 De eerste configuratie!<\/a><\/em><\/strong><\/li><li><strong><em><a href=\"https:\/\/nerdiy.de\/nl\/kan-telefoon-voor-de-kleintjes-communiceren-met-de-raspberrypi-via-het-ssh-protocol\/\">RaspberryPi \u2013 Bedien de RaspberryPi via SSH<\/a><\/em><\/strong><\/li><li><a href=\"https:\/\/nerdiy.de\/nl\/nodered-installatie-van-nodered-op-de-raspberrypi\/\"><strong><em>NodeRed \u2013 NodeRed installeren op de RaspberryPi<\/em><\/strong><\/a><\/li><li><strong><em><a href=\"https:\/\/nerdiy.de\/nl\/nodered-install-new-nodes\/\" target=\"_blank\" rel=\"noreferrer noopener\">NodeRed \u2013 Installeer nieuwe knooppunten<\/a><\/em><\/strong><\/li><li><em><strong><a href=\"https:\/\/www.nerdiy.de\/wp-admin\/post.php?post=1198&amp;action=edit\">NodeRed - importeer en exporteer knooppuntcode<\/a><\/strong><\/em><\/li><\/ul>\n\n\n\n<p><strong>In de volgende lijsten vindt u alle onderdelen die u nodig heeft om dit artikel te implementeren.<\/strong>  <\/p>\n\n\n\n<p><strong>Vereist gereedschap:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Nummer<\/th><th class=\"has-text-align-right\" data-align=\"right\">Link<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">1x<\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong><em><a class=\"aawp-link\" href=\"https:\/\/www.amazon.de\/dp\/B092LVWNX8?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Schroevendraaierset\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B092LVWNX8\" data-aawp-product-id=\"6540\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"138 in 1 Schraubendreher Set Feinmechanik Mini Feinmechaniker Satz Magnetisch Upgrade Version Pr\u00e4zisions Elektronik Reparatur Set f\u00fcr iPhone Laptop Spielzeug Uhren Kamera Brillen\" data-aawp-geotargeting=\"true\">Schroevendraaierset<\/a>&nbsp;<a class=\"aawp-link-icon-container\" href=\"https:\/\/www.amazon.de\/dp\/B092LVWNX8?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Schroevendraaierset\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B092LVWNX8\" data-aawp-product-id=\"6540\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"138 in 1 Schraubendreher Set Feinmechanik Mini Feinmechaniker Satz Magnetisch Upgrade Version Pr\u00e4zisions Elektronik Reparatur Set f\u00fcr iPhone Laptop Spielzeug Uhren Kamera Brillen\" data-aawp-geotargeting=\"true\"><span class=\"aawp-link-icon amazon\"><\/span><\/a><\/em><\/strong> <a  data-aawp-product-asin=\"B092LVWNX8\" data-aawp-product-id=\"6540\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"138 in 1 Schraubendreher Set Feinmechanik Mini Feinmechaniker Satz Magnetisch Upgrade Version Pr\u00e4zisions Elektronik Reparatur Set f\u00fcr iPhone Laptop Spielzeug Uhren Kamera Brillen\" data-aawp-geotargeting=\"true\" class=\"aawp-button aawp-button--buy aawp-button aawp-button--amazon aawp-button--icon aawp-button--icon-black\" href=\"https:\/\/www.amazon.de\/dp\/B092LVWNX8?tag=nerdiyde018-21&#038;linkCode=ogi&#038;th=1&#038;psc=1\" title=\"Kopen bij Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Kopen bij Amazon<\/a><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1x<\/td><td class=\"has-text-align-right\" data-align=\"right\"><strong><em><a class=\"aawp-link\" href=\"https:\/\/www.amazon.de\/dp\/B081VHSB2V?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"SD-kaartlezer\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B081VHSB2V\" data-aawp-product-id=\"6537\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"uni SD Kartenleser Dual USB 3.0 USB C Stecker Kartenleseger\u00e4t Aluminium OTG Adapter SD Card Reader Speicherkartenleser f\u00fcr SD\/Micro SD\/TF\/SDHC\/SDXC iPhone 15-16\/Android\/Windows\/macOS usw.\" data-aawp-geotargeting=\"true\">SD-kaartlezer<\/a>&nbsp;<a class=\"aawp-link-icon-container\" href=\"https:\/\/www.amazon.de\/dp\/B081VHSB2V?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"SD-kaartlezer\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B081VHSB2V\" data-aawp-product-id=\"6537\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"uni SD Kartenleser Dual USB 3.0 USB C Stecker Kartenleseger\u00e4t Aluminium OTG Adapter SD Card Reader Speicherkartenleser f\u00fcr SD\/Micro SD\/TF\/SDHC\/SDXC iPhone 15-16\/Android\/Windows\/macOS usw.\" data-aawp-geotargeting=\"true\"><span class=\"aawp-link-icon amazon\"><\/span><\/a><\/em><\/strong> <a  data-aawp-product-asin=\"B081VHSB2V\" data-aawp-product-id=\"6537\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"uni SD Kartenleser Dual USB 3.0 USB C Stecker Kartenleseger\u00e4t Aluminium OTG Adapter SD Card Reader Speicherkartenleser f\u00fcr SD\/Micro SD\/TF\/SDHC\/SDXC iPhone 15-16\/Android\/Windows\/macOS usw.\" data-aawp-geotargeting=\"true\" class=\"aawp-button aawp-button--buy aawp-button aawp-button--amazon aawp-button--icon aawp-button--icon-black\" href=\"https:\/\/www.amazon.de\/dp\/B081VHSB2V?tag=nerdiyde018-21&#038;linkCode=ogi&#038;th=1&#038;psc=1\" title=\"Kopen bij Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Kopen bij Amazon<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>Benodigd materiaal:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Nummer<\/th><th class=\"has-text-align-right\" data-align=\"right\">Link<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">1x<\/td><td class=\"has-text-align-right\" data-align=\"right\"> <strong><em><a class=\"aawp-link\" href=\"https:\/\/www.amazon.de\/dp\/B07TD42S27?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Raspberry Pi\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B07TD42S27\" data-aawp-product-id=\"6541\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"Raspberry Pi 4 Modelo B 2GB\" data-aawp-geotargeting=\"true\">Raspberry Pi<\/a>&nbsp;<a class=\"aawp-link-icon-container\" href=\"https:\/\/www.amazon.de\/dp\/B07TD42S27?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Raspberry Pi\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B07TD42S27\" data-aawp-product-id=\"6541\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"Raspberry Pi 4 Modelo B 2GB\" data-aawp-geotargeting=\"true\"><span class=\"aawp-link-icon amazon\"><\/span><\/a><\/em><\/strong> <a  data-aawp-product-asin=\"B07TD42S27\" data-aawp-product-id=\"6541\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"Raspberry Pi 4 Modelo B 2GB\" data-aawp-geotargeting=\"true\" class=\"aawp-button aawp-button--buy aawp-button aawp-button--amazon aawp-button--icon aawp-button--icon-black\" href=\"https:\/\/www.amazon.de\/dp\/B07TD42S27?tag=nerdiyde018-21&#038;linkCode=ogi&#038;th=1&#038;psc=1\" title=\"Kopen bij Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Kopen bij Amazon<\/a> <\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1x<\/td><td class=\"has-text-align-right\" data-align=\"right\">  <strong><em><a class=\"aawp-link\" href=\"https:\/\/www.amazon.de\/dp\/B07TMPC9FG?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Raspberry Pi voeding\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B07TMPC9FG\" data-aawp-product-id=\"6538\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"Raspberry Pi Raspberry Fuente de Alimentaci\u00f3n USB-C para 4 5V 3A 15W Negra\" data-aawp-geotargeting=\"true\">Raspberry Pi voeding<\/a>&nbsp;<a class=\"aawp-link-icon-container\" href=\"https:\/\/www.amazon.de\/dp\/B07TMPC9FG?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Raspberry Pi voeding\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B07TMPC9FG\" data-aawp-product-id=\"6538\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"Raspberry Pi Raspberry Fuente de Alimentaci\u00f3n USB-C para 4 5V 3A 15W Negra\" data-aawp-geotargeting=\"true\"><span class=\"aawp-link-icon amazon\"><\/span><\/a><\/em><\/strong> <a  data-aawp-product-asin=\"B07TMPC9FG\" data-aawp-product-id=\"6538\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"Raspberry Pi Raspberry Fuente de Alimentaci\u00f3n USB-C para 4 5V 3A 15W Negra\" data-aawp-geotargeting=\"true\" class=\"aawp-button aawp-button--buy aawp-button aawp-button--amazon aawp-button--icon aawp-button--icon-black\" href=\"https:\/\/www.amazon.de\/dp\/B07TMPC9FG?tag=nerdiyde018-21&#038;linkCode=ogi&#038;th=1&#038;psc=1\" title=\"Kopen bij Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Kopen bij Amazon<\/a> <\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1x<\/td><td class=\"has-text-align-right\" data-align=\"right\"> <strong><em><a class=\"aawp-link\" href=\"https:\/\/www.amazon.de\/dp\/B08HCDNP23?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Raspberry Pi behuizing\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B08HCDNP23\" data-aawp-product-id=\"6544\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"Miuzei Geh\u00e4use f\u00fcr Raspberry Pi 4 mit Geh\u00e4use 4B Aluminium Passiv K\u00fchlung Case Metall mit W\u00e4rmeleitenden Aufkleber Heatsink Cooler Kompatibel mit RPi4 Model B 8GB\/4GB\/2GB.\" data-aawp-geotargeting=\"true\">Raspberry Pi behuizing<\/a>&nbsp;<a class=\"aawp-link-icon-container\" href=\"https:\/\/www.amazon.de\/dp\/B08HCDNP23?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Raspberry Pi behuizing\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B08HCDNP23\" data-aawp-product-id=\"6544\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"Miuzei Geh\u00e4use f\u00fcr Raspberry Pi 4 mit Geh\u00e4use 4B Aluminium Passiv K\u00fchlung Case Metall mit W\u00e4rmeleitenden Aufkleber Heatsink Cooler Kompatibel mit RPi4 Model B 8GB\/4GB\/2GB.\" data-aawp-geotargeting=\"true\"><span class=\"aawp-link-icon amazon\"><\/span><\/a><\/em><\/strong> <a  data-aawp-product-asin=\"B08HCDNP23\" data-aawp-product-id=\"6544\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"Miuzei Geh\u00e4use f\u00fcr Raspberry Pi 4 mit Geh\u00e4use 4B Aluminium Passiv K\u00fchlung Case Metall mit W\u00e4rmeleitenden Aufkleber Heatsink Cooler Kompatibel mit RPi4 Model B 8GB\/4GB\/2GB.\" data-aawp-geotargeting=\"true\" class=\"aawp-button aawp-button--buy aawp-button aawp-button--amazon aawp-button--icon aawp-button--icon-black\" href=\"https:\/\/www.amazon.de\/dp\/B08HCDNP23?tag=nerdiyde018-21&#038;linkCode=ogi&#038;th=1&#038;psc=1\" title=\"Kopen bij Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Kopen bij Amazon<\/a>  <\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1x<\/td><td class=\"has-text-align-right\" data-align=\"right\"> <strong><em><a class=\"aawp-link\" href=\"https:\/\/www.amazon.de\/dp\/B07FCMBLV6?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Micro SD-kaart 64GB\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B07FCMBLV6\" data-aawp-product-id=\"6545\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"SanDisk Extreme 64 GB microSDXC Memory Card + SD Adapter with A2 App Performance + Rescue Pro Deluxe Up to 160 MB\/s Class 10 UHS-I U3 V30 Red\/Gold\" data-aawp-geotargeting=\"true\">Micro SD-kaart 64GB<\/a>&nbsp;<a class=\"aawp-link-icon-container\" href=\"https:\/\/www.amazon.de\/dp\/B07FCMBLV6?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Micro SD-kaart 64GB\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B07FCMBLV6\" data-aawp-product-id=\"6545\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"SanDisk Extreme 64 GB microSDXC Memory Card + SD Adapter with A2 App Performance + Rescue Pro Deluxe Up to 160 MB\/s Class 10 UHS-I U3 V30 Red\/Gold\" data-aawp-geotargeting=\"true\"><span class=\"aawp-link-icon amazon\"><\/span><\/a><\/em><\/strong> <a  data-aawp-product-asin=\"B07FCMBLV6\" data-aawp-product-id=\"6545\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"SanDisk Extreme 64 GB microSDXC Memory Card + SD Adapter with A2 App Performance + Rescue Pro Deluxe Up to 160 MB\/s Class 10 UHS-I U3 V30 Red\/Gold\" data-aawp-geotargeting=\"true\" class=\"aawp-button aawp-button--buy aawp-button aawp-button--amazon aawp-button--icon aawp-button--icon-black\" href=\"https:\/\/www.amazon.de\/dp\/B07FCMBLV6?tag=nerdiyde018-21&#038;linkCode=ogi&#038;th=1&#038;psc=1\" title=\"Kopen bij Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Kopen bij Amazon<\/a>  <\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1x<\/td><td class=\"has-text-align-right\" data-align=\"right\"> <strong><em><a class=\"aawp-link\" href=\"https:\/\/www.amazon.de\/dp\/B07RCJPQLG?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"MPR121 breakout-bord\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B07RCJPQLG\" data-aawp-product-id=\"6730\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"MPR121 Touchsensor-Controller Breakout 12 Kan\u00e4le I2C 3.3V f\u00fcr die Herstellung eigener Touchpads f\u00fcr z.B Arduino Raspberry Pi uvm.\" data-aawp-geotargeting=\"true\">MPR121 breakout-bord<\/a>&nbsp;<a class=\"aawp-link-icon-container\" href=\"https:\/\/www.amazon.de\/dp\/B07RCJPQLG?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"MPR121 breakout-bord\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B07RCJPQLG\" data-aawp-product-id=\"6730\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"MPR121 Touchsensor-Controller Breakout 12 Kan\u00e4le I2C 3.3V f\u00fcr die Herstellung eigener Touchpads f\u00fcr z.B Arduino Raspberry Pi uvm.\" data-aawp-geotargeting=\"true\"><span class=\"aawp-link-icon amazon\"><\/span><\/a><\/em><\/strong> <a  data-aawp-product-asin=\"B07RCJPQLG\" data-aawp-product-id=\"6730\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"MPR121 Touchsensor-Controller Breakout 12 Kan\u00e4le I2C 3.3V f\u00fcr die Herstellung eigener Touchpads f\u00fcr z.B Arduino Raspberry Pi uvm.\" data-aawp-geotargeting=\"true\" class=\"aawp-button aawp-button--buy aawp-button aawp-button--amazon aawp-button--icon aawp-button--icon-black\" href=\"https:\/\/www.amazon.de\/dp\/B07RCJPQLG?tag=nerdiyde018-21&#038;linkCode=ogi&#038;th=1&#038;psc=1\" title=\"Kopen bij Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Kopen bij Amazon<\/a>  <\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1x<\/td><td class=\"has-text-align-right\" data-align=\"right\"> <strong><em><a class=\"aawp-link\" href=\"https:\/\/www.amazon.de\/dp\/B074P726ZR?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Dupont kabel\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B074P726ZR\" data-aawp-product-id=\"6690\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"AZDelivery Jumper Wire Kabel 3 x 40 STK je 20 cm M2M\/ F2M \/ F2F kompatibel mit Arduino und Raspberry Pi Breadboard inklusive E-Book!\" data-aawp-geotargeting=\"true\">Dupont kabel<\/a>&nbsp;<a class=\"aawp-link-icon-container\" href=\"https:\/\/www.amazon.de\/dp\/B074P726ZR?tag=nerdiyde018-21&linkCode=ogi&th=1&psc=1\" title=\"Dupont kabel\" target=\"_blank\" rel=\"nofollow noopener sponsored\"  data-aawp-product-asin=\"B074P726ZR\" data-aawp-product-id=\"6690\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"AZDelivery Jumper Wire Kabel 3 x 40 STK je 20 cm M2M\/ F2M \/ F2F kompatibel mit Arduino und Raspberry Pi Breadboard inklusive E-Book!\" data-aawp-geotargeting=\"true\"><span class=\"aawp-link-icon amazon\"><\/span><\/a><\/em><\/strong> <a  data-aawp-product-asin=\"B074P726ZR\" data-aawp-product-id=\"6690\" data-aawp-tracking-id=\"nerdiyde018-21\" data-aawp-product-title=\"AZDelivery Jumper Wire Kabel 3 x 40 STK je 20 cm M2M\/ F2M \/ F2F kompatibel mit Arduino und Raspberry Pi Breadboard inklusive E-Book!\" data-aawp-geotargeting=\"true\" class=\"aawp-button aawp-button--buy aawp-button aawp-button--amazon aawp-button--icon aawp-button--icon-black\" href=\"https:\/\/www.amazon.de\/dp\/B074P726ZR?tag=nerdiyde018-21&#038;linkCode=ogi&#038;th=1&#038;psc=1\" title=\"Kopen bij Amazon\" target=\"_blank\" rel=\"nofollow noopener sponsored\">Kopen bij Amazon<\/a>  <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Sluit de MPR121 correct aan<\/h2>\n\n\n\n<p>Om ervoor te zorgen dat uw Raspberry Pi met de MPR121 kan communiceren, moet u deze natuurlijk correct aansluiten op de GPIO&#039;s van de Raspberry Pi.<\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-elektronik-mpr121-an-raspberrypi-esp32-esp8266-und-co-anschliessen-fritzing-tnihiv4t95-1.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"633\" data-attachment-id=\"13956\" data-permalink=\"https:\/\/nerdiy.de\/nl\/?attachment_id=13956\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-elektronik-mpr121-an-raspberrypi-esp32-esp8266-und-co-anschliessen-fritzing-tnihiv4t95-1.jpg?fit=962%2C752&amp;ssl=1\" data-orig-size=\"962,752\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-elektronik-mpr121-an-raspberrypi-esp32-esp8266-und-co-anschliessen-fritzing-tnihiv4t95-1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-elektronik-mpr121-an-raspberrypi-esp32-esp8266-und-co-anschliessen-fritzing-tnihiv4t95-1.jpg?fit=810%2C633&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-elektronik-mpr121-an-raspberrypi-esp32-esp8266-und-co-anschliessen-fritzing-tnihiv4t95-1.jpg?resize=810%2C633&#038;ssl=1\" alt=\"\" class=\"wp-image-13956 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-elektronik-mpr121-an-raspberrypi-esp32-esp8266-und-co-anschliessen-fritzing-tnihiv4t95-1.jpg?w=962&amp;ssl=1 962w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-elektronik-mpr121-an-raspberrypi-esp32-esp8266-und-co-anschliessen-fritzing-tnihiv4t95-1.jpg?resize=300%2C235&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-elektronik-mpr121-an-raspberrypi-esp32-esp8266-und-co-anschliessen-fritzing-tnihiv4t95-1.jpg?resize=768%2C600&amp;ssl=1 768w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Om dit te doen, moet u het breakout-board MPR121 op de Raspberry Pi aansluiten, zoals afgebeeld.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">RasPi<\/th><th class=\"has-text-align-center\" data-align=\"center\">MPR121<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">3.3V<\/td><td class=\"has-text-align-center\" data-align=\"center\">3.3V<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">GND<\/td><td class=\"has-text-align-center\" data-align=\"center\">GND<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">GPIO2<\/td><td class=\"has-text-align-center\" data-align=\"center\">SDA<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">GPIO3<\/td><td class=\"has-text-align-center\" data-align=\"center\">SCL<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Activeer de I2C-bus in de RaspberryPi-configuratie.<\/h2>\n\n\n\n<p>Om de I2C-bus met de Raspberry Pi te kunnen gebruiken, moet deze eerst worden geactiveerd. Er zijn twee manieren om dit te doen. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Activeer de I2C-bus van de Raspberry Pi via SSH<\/h3>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-emjkrg2sei.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"270\" height=\"49\" data-attachment-id=\"19106\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-emjkrg2sei\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-emjkrg2sei.png?fit=270%2C49&amp;ssl=1\" data-orig-size=\"270,49\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-emjkrg2sei\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-emjkrg2sei.png?fit=270%2C49&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-emjkrg2sei.png?resize=270%2C49&#038;ssl=1\" alt=\"\" class=\"wp-image-19106 size-full\"\/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Om de I2C-bus via de SSH-verbinding te activeren, moet u via SSH een verbinding met uw Raspberry Pi tot stand brengen en vervolgens het volgende commando invoeren.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">sudo raspi-config<\/pre>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"391\" data-attachment-id=\"19099\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d.png?fit=960%2C463&amp;ssl=1\" data-orig-size=\"960,463\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d.png?fit=810%2C391&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d.png?resize=810%2C391&#038;ssl=1\" alt=\"\" class=\"wp-image-19099 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d.png?w=960&amp;ssl=1 960w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d.png?resize=104%2C50&amp;ssl=1 104w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d.png?resize=600%2C289&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d.png?resize=300%2C145&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-ee8hqnf00d.png?resize=768%2C370&amp;ssl=1 768w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Vervolgens verschijnt het getoonde menu.<\/p>\n\n\n\n<p>Gebruik de pijltjestoetsen om naar de optie te navigeren<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Interface-opties<\/li><\/ul>\n\n\n\n<p>en bevestig dit met &quot;Enter&quot;.<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"390\" data-attachment-id=\"19101\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc.png?fit=960%2C462&amp;ssl=1\" data-orig-size=\"960,462\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc.png?fit=810%2C390&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc.png?resize=810%2C390&#038;ssl=1\" alt=\"\" class=\"wp-image-19101 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc.png?w=960&amp;ssl=1 960w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc.png?resize=104%2C50&amp;ssl=1 104w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc.png?resize=600%2C289&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc.png?resize=300%2C144&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-qb78ybbfsc.png?resize=768%2C370&amp;ssl=1 768w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Navigeer met de pijltoetsen naar het item in het volgende menu<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>I2C<\/li><\/ul>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"391\" data-attachment-id=\"19102\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt.png?fit=960%2C463&amp;ssl=1\" data-orig-size=\"960,463\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt.png?fit=810%2C391&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt.png?resize=810%2C391&#038;ssl=1\" alt=\"\" class=\"wp-image-19102 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt.png?w=960&amp;ssl=1 960w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt.png?resize=104%2C50&amp;ssl=1 104w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt.png?resize=600%2C289&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt.png?resize=300%2C145&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-vei3t6dxvt.png?resize=768%2C370&amp;ssl=1 768w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Bevestig het dialoogvenster dat verschijnt door met de pijltjestoetsen te klikken <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Ja<\/li><\/ul>\n\n\n\n<p>wijzigt en bevestigt met Enter.<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"389\" data-attachment-id=\"19100\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj.png?fit=960%2C461&amp;ssl=1\" data-orig-size=\"960,461\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj.png?fit=810%2C389&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj.png?resize=810%2C389&#038;ssl=1\" alt=\"\" class=\"wp-image-19100 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj.png?w=960&amp;ssl=1 960w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj.png?resize=104%2C50&amp;ssl=1 104w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj.png?resize=600%2C288&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj.png?resize=300%2C144&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-22hya7emvj.png?resize=768%2C369&amp;ssl=1 768w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Er wordt dan opnieuw een bevestiging van de activering weergegeven.<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"390\" data-attachment-id=\"19098\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk.png?fit=960%2C462&amp;ssl=1\" data-orig-size=\"960,462\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk.png?fit=810%2C390&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk.png?resize=810%2C390&#038;ssl=1\" alt=\"\" class=\"wp-image-19098 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk.png?w=960&amp;ssl=1 960w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk.png?resize=104%2C50&amp;ssl=1 104w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk.png?resize=600%2C289&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk.png?resize=300%2C144&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-debian-7ce7wxlgrk.png?resize=768%2C370&amp;ssl=1 768w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Nu kunt u het menu verlaten door op te klikken <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>finish<\/li><\/ul>\n\n\n\n<p>wijzigingen en bevestig met &quot;Enter&quot;.<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Activeer de I2C-bus van de Raspberry Pi via de grafische interface<\/h3>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"608\" data-attachment-id=\"19103\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?fit=1024%2C768&amp;ssl=1\" data-orig-size=\"1024,768\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?fit=810%2C608&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?resize=810%2C608&#038;ssl=1\" alt=\"\" class=\"wp-image-19103 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?resize=67%2C50&amp;ssl=1 67w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?resize=360%2C270&amp;ssl=1 360w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?resize=80%2C60&amp;ssl=1 80w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-ke4rltn5ml.png?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Om de I2C-bus via de grafische gebruikersinterface te activeren, moet u eerst op het Raspberry Pi-pictogram in de linkerbovenhoek klikken.<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"608\" data-attachment-id=\"19104\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?fit=1024%2C768&amp;ssl=1\" data-orig-size=\"1024,768\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?fit=810%2C608&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?resize=810%2C608&#038;ssl=1\" alt=\"\" class=\"wp-image-19104 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?resize=67%2C50&amp;ssl=1 67w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?resize=360%2C270&amp;ssl=1 360w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?resize=80%2C60&amp;ssl=1 80w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-zkwb3ryqjj.png?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Open vervolgens het programma<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Raspberry Pi-configuratie<\/li><\/ul>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"608\" data-attachment-id=\"19105\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?fit=1024%2C768&amp;ssl=1\" data-orig-size=\"1024,768\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?fit=810%2C608&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?resize=810%2C608&#038;ssl=1\" alt=\"\" class=\"wp-image-19105 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?w=1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?resize=67%2C50&amp;ssl=1 67w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?resize=360%2C270&amp;ssl=1 360w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?resize=80%2C60&amp;ssl=1 80w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2022\/06\/www.nerdiy.de-howto-raspberry-pi-mpr121-touchsensor-via-i2c-und-node-red-auswerten-vncviewer-tnt4tzlsgu.png?resize=768%2C576&amp;ssl=1 768w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Wijzigingen in het tabblad in het weergegeven venster<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>interfaces<\/li><\/ul>\n\n\n\n<p>zet de sectie &quot;I2C&quot; op &quot;enabled&quot; en bevestigt dit door op &quot;OK&quot; te klikken<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<h2>Log in op de configuratie-interface van NodeRed<\/h2>\r\n<p>Voordat u uw NodeRed-configuratie kunt bewerken, moet u - indien geactiveerd - eerst inloggen op de NodeRed-configuratie-interface.<\/p>\r\n<figure id=\"attachment_4672\" aria-describedby=\"caption-attachment-4672\" style=\"width: 810px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/03\/www.nerdiy.de-firefox-2019-03-07-21-44-54.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-4672 size-large\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/03\/www.nerdiy.de-firefox-2019-03-07-21-44-54.png?resize=810%2C416&#038;ssl=1\" alt=\"\" width=\"810\" height=\"416\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/03\/www.nerdiy.de-firefox-2019-03-07-21-44-54.png?resize=1024%2C526&amp;ssl=1 1024w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/03\/www.nerdiy.de-firefox-2019-03-07-21-44-54.png?resize=300%2C154&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/03\/www.nerdiy.de-firefox-2019-03-07-21-44-54.png?resize=768%2C395&amp;ssl=1 768w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/03\/www.nerdiy.de-firefox-2019-03-07-21-44-54.png?resize=600%2C308&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/03\/www.nerdiy.de-firefox-2019-03-07-21-44-54.png?w=1680&amp;ssl=1 1680w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2019\/03\/www.nerdiy.de-firefox-2019-03-07-21-44-54.png?w=1620&amp;ssl=1 1620w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><figcaption id=\"caption-attachment-4672\" class=\"wp-caption-text\">Weergave van het aanmeldingsvenster. Hier moet u de inloggegevens invoeren die u tijdens de configuratie van de login hebt opgegeven. Informatie hierover vind je in het artikel <a href=\"https:\/\/nerdiy.de\/nl\/setup-nodered-user-login-2\/\" target=\"_blank\" rel=\"noopener\"><em><strong>NodeRed - gebruikersaanmelding instellen<\/strong><\/em><\/a>.<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Installatie van de vereiste knooppunten<\/h2>\n\n\n\n<p>Om ervoor te zorgen dat NodeRed kan communiceren met uw reeds aangesloten MPR121, moet u eerst de node &quot;node-red-contrib-mpr121&quot; installeren. Hoe je een node kunt installeren staat in het artikel <strong><em><a href=\"https:\/\/nerdiy.de\/nl\/nodered-install-new-nodes\/\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><strong><em><a href=\"https:\/\/nerdiy.de\/nl\/nodered-install-new-nodes\/\" target=\"_blank\" rel=\"noreferrer noopener\">NodeRed \u2013 Installeer nieuwe knooppunten<\/a><\/em><\/strong><\/em><\/strong> beschreven.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Knooppuntcode rood importeren<\/h2>\n\n\n\n<p>In deze sectie vind je de Node Red-code die je nodig hebt. Hoe je dit kunt importeren in je NodeRed omgeving staat in het artikel <em><strong><a href=\"https:\/\/www.nerdiy.de\/wp-admin\/post.php?post=1198&amp;action=edit\">NodeRed - importeer en exporteer knooppuntcode<\/a><\/strong><\/em> beschreven.<\/p>\n\n\n\n<p>Je kunt de Node Red-code vinden in de Nerdiy Git-repository onder de volgende link: <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong><em><a href=\"https:\/\/github.com\/Nerdiyde\/NodeRedSnippets\/blob\/master\/snippets\/nodered\/mpr121_evaluation_via_nodered.json\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/github.com\/Nerdiyde\/NodeRedSnippets\/blob\/master\/snippets\/nodered\/mpr121_evaluation_via_nodered.json<\/a><\/em><\/strong><\/li><\/ul>\n\n\n\n<p>De NodeCode hieronder evalueert alle 12 elektroden van de MRP121. Om dit te laten werken, moet het via I2C met de Raspberry Pi zijn verbonden. U moet ook het juiste I2C-adres instellen.<\/p>\n\n\n\n<p>De momenteel gemeten waarde voor elke elektrode wordt weergegeven op het dashboard. Deze waarde verandert afhankelijk van de omgeving en ook of er een vinger (of iets anders) in de buurt is, die een actie zou moeten activeren. Om ook een nadering\/aanraking betrouwbaar te kunnen detecteren, kunt u bovendien de drempelwaarde voor elke elektrode in het dashboard instellen. Probeer het gewoon. Je kunt echt niets kapot maken. \ud83d\ude42<\/p>\n\n\n\n<p>Als je een elektrode loslaat, wordt er een signaal naar de bijbehorende linknode gestuurd, waarmee je een eventuele schakelactie kunt uitvoeren.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"810\" height=\"417\" data-attachment-id=\"12392\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1.png?fit=1525%2C785&amp;ssl=1\" data-orig-size=\"1525,785\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1.png?fit=810%2C417&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1.png?resize=810%2C417&#038;ssl=1\" alt=\"\" class=\"wp-image-12392\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1.png?resize=1024%2C527&amp;ssl=1 1024w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1.png?resize=300%2C154&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1.png?resize=768%2C395&amp;ssl=1 768w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1.png?resize=600%2C309&amp;ssl=1 600w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-plcdctvba1.png?w=1525&amp;ssl=1 1525w\" sizes=\"auto, (max-width: 810px) 100vw, 810px\" \/><\/a><figcaption>Weergave van de Node Red-flow in de NodeRed-configuratieweergave.<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-smf6owqqav.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"740\" height=\"583\" data-attachment-id=\"12396\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-nodered-mpr121-via-i2c-auswerten-firefox-smf6owqqav\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-smf6owqqav.png?fit=740%2C583&amp;ssl=1\" data-orig-size=\"740,583\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-smf6owqqav\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-smf6owqqav.png?fit=740%2C583&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-smf6owqqav.png?resize=740%2C583&#038;ssl=1\" alt=\"\" class=\"wp-image-12396 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-smf6owqqav.png?w=740&amp;ssl=1 740w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-smf6owqqav.png?resize=300%2C236&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-smf6owqqav.png?resize=600%2C473&amp;ssl=1 600w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Door op de MPR121-node te klikken, kunt u het adres van uw MPR121 configureren. Dit moet overeenkomen met het adres van de MPR121 die hardwarematig is geconfigureerd.<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-z3n4hkhvgs.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"746\" height=\"88\" data-attachment-id=\"12394\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-nodered-mpr121-via-i2c-auswerten-firefox-z3n4hkhvgs\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-z3n4hkhvgs.png?fit=746%2C88&amp;ssl=1\" data-orig-size=\"746,88\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-z3n4hkhvgs\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-z3n4hkhvgs.png?fit=746%2C88&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-z3n4hkhvgs.png?resize=746%2C88&#038;ssl=1\" alt=\"\" class=\"wp-image-12394\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-z3n4hkhvgs.png?w=746&amp;ssl=1 746w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-z3n4hkhvgs.png?resize=300%2C35&amp;ssl=1 300w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-z3n4hkhvgs.png?resize=600%2C71&amp;ssl=1 600w\" sizes=\"auto, (max-width: 746px) 100vw, 746px\" \/><\/a><figcaption>Weergave van de stroom voor de eerste elektrode.<\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile has-light-gray-background-color has-background\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-jtalqrkf1x.png?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"229\" height=\"821\" data-attachment-id=\"12393\" data-permalink=\"https:\/\/nerdiy.de\/nl\/evalueren-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/www-nerdiy-de-howto-nodered-mpr121-via-i2c-auswerten-firefox-jtalqrkf1x\/\" data-orig-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-jtalqrkf1x.png?fit=229%2C821&amp;ssl=1\" data-orig-size=\"229,821\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-jtalqrkf1x\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-jtalqrkf1x.png?fit=229%2C821&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-jtalqrkf1x.png?resize=229%2C821&#038;ssl=1\" alt=\"\" class=\"wp-image-12393 size-full\" srcset=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-jtalqrkf1x.png?w=229&amp;ssl=1 229w, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/11\/www.nerdiy.de-howto-nodered-mpr121-via-i2c-auswerten-firefox-jtalqrkf1x.png?resize=84%2C300&amp;ssl=1 84w\" sizes=\"auto, (max-width: 229px) 100vw, 229px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<h4 class=\"wp-block-heading\">Dashboardweergave<\/h4>\n\n\n\n<p>Hier ziet u per elektrode de actuele meetwaarde en kunt u per elektrode de drempelwaarde instellen.<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Meer artikelen over het onderwerp<\/h2>\n\n\n\n<p>In de volgende categorie vindt u meer links over Rasperry Pi en Node Red.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong><em><a href=\"https:\/\/nerdiy.de\/nl\/categorie\/framboos-pi\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/nerdiy.de\/category\/raspberry-pi\/<\/a><\/em><\/strong><\/li><li><strong><em><a href=\"https:\/\/nerdiy.de\/nl\/categorie\/knooppunt-rood\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/nerdiy.de\/category\/node-red\/<\/a><\/em><\/strong><\/li><\/ul>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n<h2>Veel plezier met het project<\/h2>\r\n<p>Ik hoop dat alles werkte zoals beschreven. Zo niet, of als je vragen of suggesties hebt, laat het me weten in de commentaren. Ik zal dit dan zo nodig aan het artikel toevoegen.<br \/>Idee\u00ebn voor nieuwe projecten zijn altijd welkom. \ud83d\ude42<\/p>\r\n<p><strong>PS Veel van deze projecten - vooral de hardwareprojecten - kosten veel tijd en geld. Natuurlijk doe ik dit omdat ik het leuk vind, maar als je het cool vindt dat ik de informatie met je deel, dan zou ik blij zijn met een kleine donatie aan het koffiefonds. \ud83d\ude42<\/strong><\/p>\r\n<p><a href=\"https:\/\/ko-fi.com\/nerdiy\" target=\"_blank\" rel=\"noopener\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" style=\"border: 0px; height: 36px;\" src=\"https:\/\/i0.wp.com\/cdn.ko-fi.com\/cdn\/kofi4.png?resize=143%2C36&#038;ssl=1\" alt=\"Koop Me a Coffee op ko-fi.com\" width=\"143\" height=\"36\" border=\"0\" \/><\/a>\u00a0 \u00a0 \u00a0 \u00a0<input name=\"cmd\" type=\"hidden\" value=\"_s-xclick\" \/> <input name=\"hosted_button_id\" type=\"hidden\" value=\"UAZE9RMHJY7VJ\" \/> <input title=\"PayPal - De veiligere, gemakkelijkere manier om online te betalen!\" alt=\"Donate with PayPal button\" name=\"submit\" src=\"https:\/\/www.paypalobjects.com\/de_DE\/DE\/i\/btn\/btn_donateCC_LG.gif\" type=\"image\" \/> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.paypal.com\/de_DE\/i\/scr\/pixel.gif?resize=1%2C1&#038;ssl=1\" alt=\"\" width=\"1\" height=\"1\" border=\"0\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>Dankzij de I2C-bus kan de Raspberry Pi worden uitgerust met een groot aantal praktische sensoren en actuatoren. De MPR121 biedt een (naar mijn mening) zeer elegante manier voor gebruikersinvoer. De [\u2026]<\/p>","protected":false},"author":1,"featured_media":13956,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[149,86,122,24,61],"tags":[33,237,114,25,48,50,51],"class_list":["post-2083","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-abendprojekt2h","category-elektronik","category-magic-mirror","category-raspberry-pi","category-smarthome","tag-automatisierung","tag-mpr121","tag-nodered","tag-raspberrypi","tag-raspian","tag-sensoren","tag-smarthome"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HowTo: Raspberry Pi - MPR121 Touchsensor via I2C und Node Red auswerten - nerdiy.de - DIY, Elektronik, 3D Druck und mehr...<\/title>\n<meta name=\"description\" content=\"Read a huge collection of detailed Tutorials on Nerdiy.de about all kind of Software, Hardware and general maker topics.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nerdiy.de\/nl\/evaluer-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HowTo: Raspberry Pi - MPR121 Touchsensor via I2C und Node Red auswerten - nerdiy.de - DIY, Elektronik, 3D Druck und mehr...\" \/>\n<meta property=\"og:description\" content=\"Read a huge collection of detailed Tutorials on Nerdiy.de about all kind of Software, Hardware and general maker topics.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nerdiy.de\/nl\/evaluer-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\/\" \/>\n<meta property=\"og:site_name\" content=\"nerdiy.de - DIY, Elektronik, 3D Druck und mehr...\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/nerdiy.de\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/nerdiy.de\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-07-02T11:26:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-07-02T11:26:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/12\/www.nerdiy.de-howto-elektronik-mpr121-an-raspberrypi-esp32-esp8266-und-co-anschliessen-fritzing-tnihiv4t95-1.jpg?fit=962%2C752&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"962\" \/>\n\t<meta property=\"og:image:height\" content=\"752\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Fab\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@nerdiyde\" \/>\n<meta name=\"twitter:site\" content=\"@nerdiyde\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fab\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/nerdiy.de\\\/fr\\\/evaluer-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nerdiy.de\\\/fr\\\/evaluer-howto-raspberry-pi-mpr121-touchsensor-via-i2c-and-node-red\\\/\"},\"author\":{\"name\":\"Fab\",\"@id\":\"https:\\\/\\\/nerdiy.de\\\/de_de\\\/#\\\/schema\\\/person\\\/f1579a71868adb0be60a74246d3e0908\"},\"headline\":\"HowTo: Raspberry Pi &#8211; 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Der Hintergrund war, dass ich so sicherstellen wollte, dass die eingelagerten Kartons,\u2026","rel":"","context":"In &quot;Abendprojekt(&lt;2h)&quot;","block_context":{"text":"Abendprojekt(&lt;2h)","link":"https:\/\/nerdiy.de\/nl\/categorie\/avond-project2u\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/12\/www.nerdiy.de-howto-zigbee-tuya-raumtemperatur-sensor-ts0201-ueber-zigbee2mqtt-in-nodered-einbinden-dsc04621-scaled.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/12\/www.nerdiy.de-howto-zigbee-tuya-raumtemperatur-sensor-ts0201-ueber-zigbee2mqtt-in-nodered-einbinden-dsc04621-scaled.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/12\/www.nerdiy.de-howto-zigbee-tuya-raumtemperatur-sensor-ts0201-ueber-zigbee2mqtt-in-nodered-einbinden-dsc04621-scaled.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/12\/www.nerdiy.de-howto-zigbee-tuya-raumtemperatur-sensor-ts0201-ueber-zigbee2mqtt-in-nodered-einbinden-dsc04621-scaled.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/12\/www.nerdiy.de-howto-zigbee-tuya-raumtemperatur-sensor-ts0201-ueber-zigbee2mqtt-in-nodered-einbinden-dsc04621-scaled.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":18175,"url":"https:\/\/nerdiy.de\/nl\/howto-howto-zigbee-ikea-tradfri-outlet-e1603-e1702-e1708-via-zigbee2mqtt-integreren-in-node-rood\/","url_meta":{"origin":2083,"position":2},"title":"HowTo: HowTo: Zigbee integreren - Ikea TRADFRI Outlet E1603\/E1702\/E1708 via zigbee2mqtt in Node Red","author":"Fab","date":"24. July 2022","format":false,"excerpt":"Der TRADFRI Stecker ist eine einfache M\u00f6glichkeit vorhandene Verbraucher wie Lampen \u00fcber euer Smart Home System via Zigbee zu schalten Dabei kann der Verbraucher Ein- und Ausgeschaltet werden. Gleichzeitig fungiert die Steckdose auch als Signalverst\u00e4rker (Repeater) f\u00fcr alle anderen Zigbee-Ger\u00e4te. 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January 2022","format":false,"excerpt":"Der IKEA STYRBAR Taster ist etwas gr\u00f6\u00dfer als der kleine Bruder der Ikea TRADFRI E1743 Taster. Daf\u00fcr bietet er aber auch ein paar mehr Funktion und - aufgrund der zwei eingesetzten AA Batterien - eine l\u00e4ngere Batterielebensdauer. 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February 2023","format":false,"excerpt":"Das IKEA FYRTUR Rollo ist eine sehr einfache M\u00f6glichkeit, wie Ihr Eure Fenster mit einem leicht steuerbaren Rollo nachzur\u00fcsten. Dank Zigbee Anbindung k\u00f6nnt Ihr dies dann f\u00fcr alle M\u00f6glichen Szenerien nutzen. 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