A binary counter for AVR to keep track of munchkin levels

It has 4 leds to show the current count (1-16)

It has 2 buttons to add/sub to the count

If you press both buttons for ~2s it will show a random number 1-6 (dice)

It uses the internal oscillator (8MHz) so the timming might (should) be kinda off, but it won't affect you much.

Note: It uses the reset pin (PB5) on ATTiny85, so the fuses will disable reprogramming. Use with care, as you need a high voltage AVR programmer to reprogram it and change the fuses back.

PB0-3: Indication leds (add resistors to limit brightness) PB4: -1 button PB5: +1 button