Receives data from accompanying processing sketch This sketch takes values from the eeprom to show on neopixels, it can also receive new data and write that to the eeprom Arduino EEPROM neopixel pattern writer by Pieter Pelt 2015 This is the code for the Arduino: You'll need to download the NeoPixel library, the EEPROM library is included with the arduino software.
The switch is to switch between display and program mode, if you are writing a new pattern to the device, put it in program mode to make sure you don't miss a bit. For short lengths of LED strip like in this project, you don't need to use external power. The wiring is real easy, just hook it up like on the schematic. Breadboard, wire, pcb, anything to hook it all up. A length of Adafruit Neopixels, use a segment of 5 if you don't want to change anything in my code To build this device You'll need a few parts! -1 Arduino, I prefer Nano's
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