{"id":4523,"date":"2019-03-07T17:37:20","date_gmt":"2019-03-07T16:37:20","guid":{"rendered":"https:\/\/www.nerdiy.de\/?p=4523"},"modified":"2019-07-11T06:30:19","modified_gmt":"2019-07-11T04:30:19","slug":"esp8266-led-verwijderen-uitschakelen","status":"publish","type":"post","link":"https:\/\/nerdiy.de\/nl\/esp8266-led-verwijderen-uitschakelen\/","title":{"rendered":"HowTo: ESP8266 \u2013 Led verwijderen\/uitschakelen"},"content":{"rendered":"

In de afgelopen jaren is de ESP8266 steeds meer een universele bos-en-weide microcontroller geworden die in bijna elk project kan worden gebruikt. Een microcontroller voor ~2\u20ac inclusief WLAN en met voldoende geheugen is anders alleen te vinden in zijn grote broer, de ESP32.<\/p>\n

De ESP8266 is verkrijgbaar in verschillende versies. De meest gebruikte versie, omdat deze gecertificeerd is, is de ESP-12 versie met al zijn subvarianten. Met deze versie kun je bijna elke GPIO gebruiken en ook de ADC, wat niet altijd het geval is met andere versies. Deze versie heeft echter \u00e9\u00e9n \"nadeel\"...<\/p>\n

Een helder oplichtende blauwe LED op de printplaat van de ESP is handig om te zien of de ESP van stroom wordt voorzien. In projecten waar de ESP8266 zo onzichtbaar mogelijk gemonteerd moet worden, is het echter nogal storend.<\/p>\n

Maar er zijn manieren om van deze LED's af te komen. Hoe je dit doet en waar je rekening mee moet houden, wordt beschreven in het volgende artikel.<\/p>\n

\n

Veiligheidsinstructies <\/span><\/h2>\r\n

Ik weet dat de volgende opmerkingen altijd een beetje vervelend zijn en onnodig lijken. Helaas hebben veel mensen die "beter" 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>
https:\/\/www.nerdiy.de\/sicherheitshinweise\/<\/span><\/a><\/em><\/strong><\/p>\r\n

Affiliate links \/ reclame links<\/h2>\r\n

De hier vermelde links naar online winkels zijn zogenaamde affiliate-links. Als u op zo'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

Eisen<\/h2>\n

Handige artikelen:
\n<\/strong>In het geval van de hardware-oplossing moet je al enige ervaring hebben met de soldeerbout.
\nJe kunt hierover lezen in het artikel Elektronica - Mijn vriend de soldeerbout<\/a><\/strong><\/em> vind meer informatie.<\/p>\n

Benodigd materiaal:<\/strong><\/p>\n

- Nee -<\/p>\n

Vereist gereedschap:<\/strong><\/p>\n

In de volgende lijst vind je alle tools die je nodig hebt om dit artikel te implementeren.<\/strong><\/p>\n

\n \n \n \n \n \n \n \n \n <\/colgroup>\n <\/table>\n \n \n \n<\/div>\n\n
\n

De softwareoplossing<\/h2>\n

De eenvoudigere oplossing voor het \"LED probleem\", waarvoor je geen soldeerbout of ander gereedschap nodig hebt, is de software oplossing. Een blik op het schakelschema van een ESP8266 versie 12 laat zien dat de kathode van onze probleem-LED (in het schakelschema \"LED1\") via een weerstand is verbonden met GPIO02. En waar een GPIO is, is er ook een schakelmogelijkheid via software. \ud83d\ude42<\/p>\n

Merk op dat de schakellogica van deze LED omgekeerd is omdat de LED met de \"negatieve pool\" verbonden is met de GPIO. Dit betekent dat bij een HIGH-niveau op GPIO02 de LED wordt uitgeschakeld, maar bij een LOW-niveau wordt ingeschakeld. Hiermee moet rekening worden gehouden bij het schakelen van GPIO2.<\/p>\n

\"\"
Aansluitschema van de ESP8266 in de ESP-12 versie. Bron: bimbo385@freenet.de of https:\/\/vietnhap.com\/dien-tu-so\/tom-tat-esp8266-va-phan-loai-cac-ho-esp.htm<\/em><\/figcaption><\/figure>\n

Als je je ESP8266 zelf programmeert met behulp van de Arduino IDE, is de volgende code voldoende om de LED te deactiveren.<\/p>\n

  #definieer GPIO02 2 pinModus (GPIO02, UITGANG); digitalWrite(GPIO02, HOOG);<\/pre>\n
Als je daarentegen ESPEasy gebruikt als \"besturingssysteem\" voor de ESP8266, kun je terugvallen op de volgende, reeds ge\u00efntegreerde functie.<\/p>\n
\"\"<\/a>
Je hoeft alleen maar in te loggen in het ESPEasy webmenu en de juiste GPIO in te stellen op het tabblad \"Hardware\" in de sectie \"Wifi Status LED\" - in het geval van de ESP-12 GPIO-2. Het selectievakje \"Inversed LED\" moet aan staan. Het selectievakje \"Inversed LED\" moet worden ingeschakeld, omdat de LED wordt aangestuurd met een omgekeerde logica zoals hierboven beschreven. Vergeet niet de instelling op te slaan door op de knop \"Submit\" te drukken.<\/figcaption><\/figure>\n
\n
De hardware-oplossing<\/h2>\n
De hardware-oplossing is de oplossing bij uitstek als je de LED wilt deactiveren maar nog steeds de GPIO02 wilt gebruiken voor interactie met andere hardware. De LED wordt eenvoudig gedesoldeerd. Vooral GPIO02 of D4 wordt vaak gebruikt op Wemo's D1 miniborden - in ieder geval door mij - omdat het direct naast de \"5V\" en \"GND\" pinnen zit. Het enige nadeel is dat de LED meestal kapot is, maar in de meeste gevallen is dat geen probleem.<\/p>\n
\"\"<\/a>
Zo maakt het Wemos D1 miniboard ook gebruik van een ESP8266 ESP-12 met een ge\u00efntegreerde led.<\/figcaption><\/figure>\n
\"\"<\/a>
De LED bevindt zich links vooraan tussen het schild van de behuizing (zilveren rechthoek) en de antenne van de printplaat (gouden gebogen lijn op de printplaat).<\/figcaption><\/figure>\n
\"\"<\/a>
Je kunt de LED nu desolderen met een soldeerbout. Verwarm hiervoor de linkerkant van de soldeerbout afwisselend gedurende ongeveer 10...<\/figcaption><\/figure>\n
\"\"
...en rechter contact van de LED. De LED warmt volledig op totdat je hem van de soldeerpads kunt duwen door met de soldeerbout lichte druk uit te oefenen op de LED-behuizing. Meestal breekt de LED tijdens deze stap. Maar dat is niet erg. De afzonderlijke onderdelen kunnen heel gemakkelijk met de soldeerbout worden verwijderd.<\/figcaption><\/figure>\n
\"\"<\/a>
Zodra de LED is verwijderd, zou het er zo uit moeten zien.<\/figcaption><\/figure>\n
\"\"<\/a>
Controleer vervolgens nogmaals of de twee soldeerpads niet zijn kortgesloten\/verbonden door soldeerresten. Dit is erg belangrijk omdat GPIO2 anders constant op een HOOG niveau staat en het gebruik ervan als GPIO in de weg kan staan.<\/figcaption><\/figure>\n
Toegegeven, dit is de meest radicale oplossing. Tegelijkertijd is het ook de enige oplossing om de LED te deactiveren als je GPIO02 tegelijkertijd voor andere uitgangen wilt gebruiken.<\/p>\n
\n
Meer informatie<\/h2>\n
https:\/\/vietnhap.com\/dien-tu-so\/tom-tat-esp8266-va-phan-loai-cac-ho-esp.htm<\/a><\/strong><\/em><\/p>\n
\n
Veel plezier met het project<\/h2>\r\n
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.
Idee\u00ebn voor nieuwe projecten zijn altijd welkom. \ud83d\ude42<\/p>\r\n
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
\"Koop<\/a>\u00a0 \u00a0 \u00a0 \u00a0   \"\"<\/p>","protected":false},"excerpt":{"rendered":"
De ESP8266 is de laatste jaren steeds meer uitgegroeid tot de universele bos- en weide-microcontroller die in bijna elk project kan worden gebruikt. Een microcontroller voor ~2\u20ac inclusief WLAN en met [\u2026]<\/p>","protected":false},"author":1,"featured_media":5352,"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":[149,56,86],"tags":[],"class_list":["post-4523","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-abendprojekt2h","category-arduino","category-elektronik"],"yoast_head":"\nHowTo: ESP8266 - LED entfernen\/deaktivieren - 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\/esp8266-led-retirer-desactiver\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HowTo: ESP8266 - LED entfernen\/deaktivieren - 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\/esp8266-led-retirer-desactiver\/\" \/>\n<meta property=\"og:site_name\" content=\"nerdiy.de - 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Dahinter verbirgt sich n\u00e4mlich eigentlich das von Espressif - dem Hersteller des ESP8266 - angebotene\u2026","rel":"","context":"In "Arduino"","block_context":{"text":"Arduino","link":"https:\/\/nerdiy.de\/nl\/categorie\/arduino\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2020\/01\/www.nerdiy.de-howto-esp8266-mit-dem-esptool-bin-dateien-unter-windows-flashen-flashesp8266-2020-01-14-19-12-18.png?fit=397%2C207&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":15473,"url":"https:\/\/nerdiy.de\/nl\/howto-build-pxlblck-pxlblck_cassettelamp\/","url_meta":{"origin":4523,"position":5},"title":"HowTo: pxlBlck - Bouw pxlBlck_CassetteLamp","author":"Fab","date":"13. March 2021","format":false,"excerpt":"Mittlerweile geh\u00f6ren MP3-Player, Smartphhones und USB-Sticks mit 128GB und mehr Speicher zum Alltag. Musik zu speichern und zu transportieren ist deshalb so einfach wie nie geworden. Vor ca. 30 Jahren sah das noch anders aus. 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Nat\u00fcrlich habe auch ich noch eine Menge davon\u2026","rel":"","context":"In "Elektronik"","block_context":{"text":"Elektronik","link":"https:\/\/nerdiy.de\/nl\/categorie\/elektronica\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/03\/www.nerdiy.de-dehowto-pxlblck-pxlblck_cassettelamp-aufbauenenhowto-pxlblck-build-your-own-pxlblck_cassettelamp-dsc01621-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\/03\/www.nerdiy.de-dehowto-pxlblck-pxlblck_cassettelamp-aufbauenenhowto-pxlblck-build-your-own-pxlblck_cassettelamp-dsc01621-scaled.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/03\/www.nerdiy.de-dehowto-pxlblck-pxlblck_cassettelamp-aufbauenenhowto-pxlblck-build-your-own-pxlblck_cassettelamp-dsc01621-scaled.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/03\/www.nerdiy.de-dehowto-pxlblck-pxlblck_cassettelamp-aufbauenenhowto-pxlblck-build-your-own-pxlblck_cassettelamp-dsc01621-scaled.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/nerdiy.de\/wp-content\/uploads\/2021\/03\/www.nerdiy.de-dehowto-pxlblck-pxlblck_cassettelamp-aufbauenenhowto-pxlblck-build-your-own-pxlblck_cassettelamp-dsc01621-scaled.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/posts\/4523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/comments?post=4523"}],"version-history":[{"count":0,"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/posts\/4523\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/media\/5352"}],"wp:attachment":[{"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/media?parent=4523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/categories?post=4523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nerdiy.de\/nl\/wp-json\/wp\/v2\/tags?post=4523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}