-------------REVISION A-------------------------------
PCB
---
Add 10k resistor to VCC on pin 1 (PB5/RESET).	DONE
Metric scale on top of the card.				DONE
QR code.										DONE
Two pads to test an LED.						DONE
Table with decimal, binary, hex.				DONE



Firmware
--------
Implement electronic dice.						DONE
Add sleep function on chip to sabe power.		DONE
Implement long press button to test an LED.
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-------------REVISION B-------------------------------
PCB
---
Change A into I on power formula.