MAX7219 dot matrix 8x8 module

SKU : A04009 Only need three IO ports can drive a dot-matrix! Dot-matrix display, flicker-free! Supports cascading Module parameters: - A single module can drive an 8 * 8 common cathode lattice - 2 module operating voltage: 5V - Module size: 5 cm in length X width 3.2 cm x 1.5 cm - 4 with four screws hole, aperture 3mm, Our M3 Tongzhu fixed - 5 modules with input and output interface, supports multiple modules cascade Wiring instructions: - Module on the left as an input port, output port on the right. - Control of a single module, simply input port to the CPU - 3 more modules cascade input termination module of a CPU, 2 output termination module inputand output of the two modules is terminated with the input end of the first three modules, and so on. .. - 51 MCU, for example: VCC 5V GND GND DIN P22 CS P21 CLK P20