This tool requires following hardware:

  • An Atmega32u4 based board (for example: Arduino Leonardo or Pro Micro)
  • An ESP8266 or ESP8285 (for example NodeMCU or Wemos d1 mini)
  • [Optional] A single Neopixel (WS2812b) or Dotstar (APA102) LED

You will also need a computer and USB data cable to flash the microcontrollers.

If you’re a beginner, it’s recommended you wire everything together on a breadboard first!
So get a breadboard with a couple of jumper wires.

If you wish to solder everything together to a small DIY gadget, you’ll obviously need soldering equipment and a bit of experience using it.