A single module with 4off 8x8 dot matrix displays and 4off MAX7219 drivers
Display colour options: RED, GREEN or BLUE
Specification
● PCB Size: 130mm x 32mm x 19mm
● Supply: +5V DC
● Weight: 51g
● LED Driver Chip: MAX7219
Included
● PCB Assembled and Tested
● 4 Way Patch Cable
● 4 Way Header
Also Available
A simple 3D printable clock design is available on thingiverse.com, search for Dimwit-Dave.
Also Demo firmware is available on Github, search for mottramlabs.