RGB Matrix Backpack
From Hackstrich
The RGB Matrix Backpack will be a small controller board to attach to 8x8 RGB LED matrices. It will accept input via SPI or I2C and control the display.
Rough Notes
- High side could be 3 multiplexers (one for R, G, B) feeding PNPs for each row
- Low side will be a multiplexer feeding 3904s for each row
- Being able to plug them together in a 2D matrix would be awesome