REES52 LED display module - 8-digit LED display module digital control tube red matrix Timer Counter and Clock Electronic Hobby Kit

LED display module - 8-digit LED display module MAX7219 digital control tube red matrix for Arduino Wiring instructions (a program, for example, all IO port definitions can be changed in the program): VCC: 5V GND: GND DIN: P00 CS: P01 CLK: P02 note: Please do not reverse the VCC and GND, Otherwise, chip will burn 51 P0 port of the MCU requires a pull-up resistor. If your device does not have the pull-up resistor,It can be connected to the data line of the other port supply content 1x MAX7219 Module 4x Copper pillar 4x screw