WiFi LED Controller - shield for the Wemos D1 Mini ESP8266 with level shifter for addressable RGB LEDs (WS2811, WS2812, APA102, etc).Designed by Evil Genius Labs LLC in United States of America
Note: The 6 Output Wemos D1 Mini Wi-Fi LED Controller is a more recent version of this shield, and is superior in every way, but is slightly larger. This is a shield/breakout for the Wemos D1 Mini ...Read More…
Note: The 6 Output Wemos D1 Mini Wi-Fi LED Controller is a more recent version of this shield, and is superior in every way, but is slightly larger.
This is a shield/breakout for the Wemos D1 Mini ESP8266 board that makes it easy to control addressable RGB LEDs such as WS2811, WS2812 (Adafruit NeoPixels), SK6812, APA102 (Adafruit DotStars), and SK9822. The Wemos D1 Mini is an excellent mini Wi-Fi development board based on the ESP8266. I've used it extensively in development of addressable RGB LED art projects such as my 6.5ft Rainbow Tree
This is a larger version of my Wemos D1 Mini ESP8266 LED & Level Shifter Mini Shield
I made this shield because I was hand-wiring this same layout on perma-proto boards, which was time-consuming and unprofessional looking.
The shield includes a 74HCT245 level shifter, which is the most well-regarded high speed level shifter I've found. This shifts the 3.3V logic level of the ESP8266 to the 5V expected by addressable RGB LEDs. These projects often work fine without a level shifter, until they don't.
Four digital output pins (D5 - D8) are run through the level shifter. These pins support parallel output by the fantastic FastLED library.
The shield also includes places for data line resistors and a large 1000uF capacitor as recommended when driving LEDs, especially when powering the microcontroller from the same power supply as a large number of LEDs. Duplicate breakouts are included for each of the Wemos D1 mini pins. The shield also includes a spot for easily adding an IR receiver.
The board can be assembled in a very low profile configuration (about 10mm thick) by soldering the Wemos directly to the PCB with only male headers and by mounting the large capacitor to the side (see pictures).
Alternatively, female headers can be used to allow easy removal of the Wemos microcontroller. This results in about 18mm of thickness.
Stacking female headers can be used, which allows plugging other Wemos shields directly on top and/or bottom. This adds another 8mm to 16mm of thickness.
The 3D printed enclosure files are available on Thingiverse.
These parts are required to assemble. They are not included.
These parts are also required to assemble. They are included if you choose the Component Kit option:
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James | Dec. 10, 2019
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