Dot Matrix Canvas Enclosure for Internet of Things
thingiverse
This simple minimalist housing fits a standard 4x8x8 LED Matrix module and thanks to its tight tolerances, this case can be printed on relatively small print beds. The display is powered by the MAX7219 chip which communicates through serial so you only need five wires to connect it to your favorite microcontroller. VCC -> 3.3 Volts GND -> Ground DIN -> MOSI (Data channel) CS -> GPIO (Chip select) - You pick the pin CLK -> SCK (Clock) Serial communication is a standard way to communicate between chips and microcontrollers, allowing for two-way transmission that's widely supported and fast enough for most applications. It's this serial communication protocol that makes gigantic displays possible. Code: https://github.com/markruys/arduino-Max72xxPanel
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