MAX7219 4 in 1 LED Dot Matrix Display Module MCU Control DIY Kit for Arduino with 5 Pin Line

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About MAX7219 4 In 1 LED Dot Matrix Display Module MCU

It has a piece of type B BCD coder, multiplexing scanning circuit, segment driver, and also a 8*8 static RAM used to store each datum.Only an external register is used to set segment current of each LED.A convenient four wire serial interface can connect all general microprocessor.Each datum can be addressed when update does not need to rewrite all the display.MAX7219 also allows users to select coding or not of each data. Specifications: Model: MAX7219 Type: 4 in 1 Module Working Voltage: 5V Size: 13.5*3.3cm/5.31*1.3in Weight: 53g(approx.) Wiring: 1. The left part of module is input port, and the right is output port. 2. When controlling a single module, just need to connect input port to CPU 3. For multiple modules cascading, the input port of the 1st module connects to CPU, and output connects to the input port of the 2nd module; then the output of 2nd module connects to the input port of the 3rd module, and so on. Take 51 single chip microcomputer as an example: VCC -- 5V GND -- GND DIN -- P22 CS -- P21 CLK -- P20 Package Includes: 1 x Module 1 x Cable