2db MAX7219 LED mátrix modul MCU vezérlő Arduino

Module parameters:
common cathode lattice
2.Module Operating voltage: 5V.
3.Module size: 5 cm long X 3.2 cm wide X 1.5 cm high
4.With four screws hole, aperture 3mm, by using our M3 Tongzhu fixed
5.Module with input and output interfaces, supports multiple modules cascade
6.Led colour:Red
Wiring instructions:
1.The module left as an input port to the output port on the right.
2.The control of a single module, simply input port to the CPU
3.Multiple modules cascade input termination CPU, 2 output termination module, a module of the input of the input terminal, the output terminal of the first two modules of the first three modules, and so on ...
51 MCU, for example:
VCC → 5V
GND → GND
DIN → P22
CS → P21
CLK → P20

Shipping List:
2PCS*MAX7219 Dot Led Matrix Module MCU LED Display Control Module Kit For ArduinO
ultrasonic module distance measuring sensor HC-Sr04.

2PCS MAX7219 Dot led matrix module MCU control LED Display module for Arduino