For another project I urgently needed a relatively large digit to display a time duration. This small "sub-project" ultimately arose from this. Because with the 3D printed frame described here [...]
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Category: Electronics
HowTo: ESPEasy – Connect and read LDR to Wemos D1 Mini
There are some situations in which the connection of an LDR to an ESP makes sense. This is because it is relatively easy and for little money to adjust the brightness in a room [...].
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HowTo: pxlBlck - Building the pxlBlck_RingClock
The pxlBlck_RingClock is very similar to the pxlBlck_SlotClock. It is also built with the help of a 1×60 LED matrix and can display the time according to the same scheme as the pxlBlck_SlotClock. However, the [...]
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HowTo: pxlBlck - build pxlBlck_8x8
The pxlBlck_8x8 was one of the first members of the pxlBlck family. Thanks to the few parts and the prefabricated WS2812 8×8 LED matrix it is quite fast to build and thanks to the adapter board it offers [...]
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HowTo: pxlBlck - build pxlBlck_Pot
The idea for the pxlBlck_Pot is strongly inspired by a design that Lukas (@i_am_lukas) had created. He agreed to let me take over his design. Thanks again for that 🙂 At the [...]
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HowTo: pxlBlck - build pxlBlck_SlotClock
The pxlBlck_SlotClock consists of a 1×60 LED matrix. So it can display the time according to the same scheme as an analog clock. The colors of the individual hands can be adjusted. [...]
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HowTo: pxlBlck – design icons, transfer them to the pxlBlck and display them
I started developing the pxlBlcks because I was looking for a way to stay informed about events in the SmartHome. In the meantime there are two in [...]
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HowTo: pxlBlck – Install and configure the pxlBlck plugin
The pxlBlck-plugin for the ESPEasy framework is the "software counterpart" to the pxlBlck platforms. With the plugin you can easily control the installed LED matrices and with the help of the other functions is relatively [...]
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HowTo: pxlBlck – Commands for configuring the pxlBlck
The pxlBlck-plugin or the functions of your pxlBlck can be configured in two different ways. One way is to configure most of the functions via the plugin's web menu. Many infos [...]
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HowTo: pxlBlck – Configure and display animations
With the help of pxlBlck you can be informed about events in different ways. One of these ways is to display previously set icons. Unfortunately this possibility [...]
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HowTo: pxlBlck – configure clock faces and screen savers
The adjustable dials differ from the type of LED matrix used. Unfortunately, this is because different matrix sizes allow or do not allow different displays. Nevertheless, to give you a small overview [...]
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HowTo: pxlBlck – Automatic adjustment of the display brightness via LDR
If you not only want to stay informed about events with your pxlBlck and also use it to display the current time, then you may have already noticed that a fixed [...]
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pxlBlck - An IOT/SmartHome Information System
pxlBlck is a system of hardware and software to build an information system for the SmartHome. Various software and hardware options are available. Thanks to the integration in an EspEasy plugin can [...]
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HowTo: ESPEasy – Activate NTP time retrieval from the Internet
Thanks to WiFi and thus (often) also Internet connection, an ESP8266 or ESP32 programmed with ESPEasy also has the possibility to display the time. For this to work, the call [...]
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HowTo: Electronics – Build your own waterproof 12V chain of lights
For a camping trip I was looking for a cheap and bright light chain. This should be waterproof and bright enough to be able to properly illuminate the tent. Perfect would be [...]
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HowTo: Electronics – encapsulate electronics waterproof with epoxy
During the construction of a light chain I was faced with the problem of how I could get this light chain waterproof. Finally, I have the electronic components, which must not be exposed to moisture in [...]
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News: PCB development - hubCtrlr, miniFloorLamp and nanoPxlV1.3
Lately I'm working on several PCB projects of which I want to present a few here. i2c_slider_75 With this PCB I want to reduce the wiring effort of WinDIY a bit. The [...]
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HowTo: ESPEasy - Using a PCA9685 to control servos
The PCA9685 is a PWM port expander. With this it is possible to connect up to 16 LEDs, servos or other components to your ESP8266 and supply them with a PWM signal. Thanks to [...]
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HowTo: Raspberry Pi – Install "Shairport" Airplay on the Raspberry Pi
Everyone who uses one (or more) Apple devices surely knows the AirPlay function. Thanks to this, media of all kinds can be streamed to other devices in the network. This way, you can share photos on a [...]
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HowTo: Tasmota – Flash Sonoff iFan03 with Tasmota firmware
There are some practical modules in the Sonoff range. Among them is the "Sonoff iFan03". This is actually intended to control ceiling fans and a connected lamp via remote control and WLAN [...].
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HowTo: Tasmota – Flash firmware with TuyaConvert
Flashing devices with the ESP8266 is already described in the article ESP8266 - flashing .bin files under Windows with the "Esptool". Many ready SmartHome devices such as various sockets [...]
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HowTo: Tasmota – Set off-delayed after-running of a relay
The overrun of a relay is actually a quite often used function. Unfortunately, this is (at least until today) not so easy to realize with the Tasmota relays. A practical use case [...]
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HowTo: Electronics - nanoPxl V1.1 SMD components soldering
Currently I am working on the first preparations of a somewhat larger project. For this I need LEDs which shine a little brighter. At the same time I did not want to give up the comfort of the known [...]
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News: PCB development - genCtrlr and nanoPxl
Since I started two new PCB projects lately, I thought it was about time to report about them here. genCtrl aka "NerdiskeratorController" One [...]
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HowTo: WinDIY – assemble pitch actuator
One component that should make WinDIY safer is the pitch actuator. This allows the angle of attack of the wing to be changed via a push rod. In case of emergency (e.g. if the speed is too high [...]
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News: Summer 2020
Dear visitors of Nerdiy.de, I've decided to post a little update every now and then (probably about four times a year) about what's going on in the background at Nerdiy.de. This one [...]
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HowTo: ESPEasy / Wemos D1 Mini - Adapt ADC to a different maximum voltage
With the help of the ADC on the ESP8266 you can measure voltages. This is practical for example to measure a battery voltage and thus the charge state of the battery or with the help of a LDR and a [...]
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HowTo: ESPEasy – level sensor with VL53L0X / VL53L1X
I recently stumbled across the VL53L0X and VL53L1X TOF distance sensors. These sensors can determine distances with millimeter accuracy using a laser. Thereby they have a range of up to 4 m [...]
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Code snippet: Arduino - Enable I2C broadcast receive
I2C is the bus protocol or technology through which a microcontroller can communicate with many sensors or actuators. Thanks to the right software, you can also connect different microcontrollers with each other and [...].
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HowTo: ESP8266 - flashing .bin files with the "Esptool" under Windows
The actual flashing of firmware files like .bin files (also called "binarys") to the Wemos D1 Mini, the NodeMcu dev board or any other board based on the ESP8266 is done in the [...]
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