Skip to content

Latest commit

 

History

History
64 lines (50 loc) · 2.42 KB

README.md

File metadata and controls

64 lines (50 loc) · 2.42 KB

ProtoPCB

Business card PCB and pocket Attiny3227 and LED matrix playground. Powered by a CR2032 battery

Description

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.

Current programs

  • Snake

Coming soon

  • Pong
  • Tic Tac Toe
  • Tetris

LED matrix info

                 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 /          *

PCB Revision History

  • Rev 1.0 - 1st working version (Do not recreate-one shorted track) NOTE: Removed from github

  • Rev 2.0 - Vertical PCB format and visual improvements. Changed foorptints for shift registers

  • Rev 3.0 - CR2032 battery holder added for the back, Track routing improvements

Creators

Landon Mello @Landon_Mello

Ben Liebmann