Attiny85 Keychain Dice

Attiny85 based electronic dice

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chris_maker_ has 2 orders / 0reviews
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This little keychain is composed of an Attiny85 (SOIC 8), a button on the IO2 pin (pin 7), a CR2032 battery slot and 7 leds. With this device, you can simulate a dice, and with deep sleep mode, the keychain will work for many months.

To program this device you can use my Attiny Uploader with SOIC clamp.

How to program the board:

Arduino IDE board manager:

VSCode platformio.ini:


platform = atmelavr

board = attiny85

framework = arduino

upload_protocol = stk500v1

upload_flags =



upload_port = //dev/cu.usbmodem1301

upload_speed = 19200

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