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README.md
SPI pins.png
Squishy_Buzz.hex
Squishy_Buzz.ino
Squishy_RGB.hex
Squishy_RGB.ino

README.md

##Software

Here's both the Arduino files and pre-compiled hex files ready for uploading. You will need some type of ISP programmer to upload the code. I use an Arduino Leonardo as a programmer. It's easiest to do this with the ATTiny on the board, with only the capacitor and voltage regulator.

The programming pins are

  • RESET - 1
  • MOSI - 5
  • MISO - 6
  • SCK - 7

You also need to program the fuses to disable the reset line, as it's used as one of the ADC inputs.

Fuses should be set to

  • Low 0xE2
  • High 0x77
  • Extended 0xFF

If for some reason you need to reprogram, you'll have to remove the ATTiny and use a high-voltage serial programmer.