led matrix
2 pages across tutorials, modules, pinouts and guides.
beginnerModule
32x8 LED Matrix with MAX7219, 3-Pack
Four 8x8 squares in one strip, 256 LEDs, three signal wires. What the pads are called, why the sketch has to say four, and what to do about a 3.3 V board on a chip that wants 3.5 V.
beginnerModuleUpdated
8x8 LED Matrix
Sixty-four LEDs and a MAX7219 that scans them for you. Two boards share this page — the TinkerBlock TK52 and the chainable module that comes three to a box — and only one of them can be chained.