Business card PCB and pocket Attiny3227 and LED matrix playground. Powered by a CR2032 battery
A business card PCB based on the ATTINY3227 chipset. Using 4 74HC595D shift registers to drive a 256 LED matrix. With a standard UDPI interface and 3 input buttons the possibilities are endless. The current code includes various games and demo programs. Please feel free to make your own and share!
NOTE: Shift register U3 is reversed for easier routing.
- Snake
- Pong
- Tic Tac Toe
- Tetris
led matrix data flow
attiny3227
V
\_________>_______________________>______________________
U1 U2 \
____________________ ____________________ |
/ \ / \ |
X X X X X X X X X X X X X X X X \ |
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X |---- U3---V--(REVERSED)
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X / |
X X X X X X X X X X X X X X X X \ |
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X |---- U4 V
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X | |
X X X X X X X X X X X X X X X X / *
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Rev 1.0 - 1st working version (Do not recreate-one shorted track) NOTE: Removed from github
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Rev 2.0 - Vertical PCB format and visual improvements. Changed foorptints for shift registers
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Rev 3.0 - CR2032 battery holder added for the back, Track routing improvements
Landon Mello @Landon_Mello
Ben Liebmann