Lao Chen white light dot matrix four-way MAX7219*4 display driver board

The display driver for the cover is HACK_CLOCK from HACK Labs

Lao Chen Electronics researched a DIY white light square common anode dot matrix, model SZ711288WF

Official website information: http://www.arkch.com/product/111.html

The price is 0.9 yuan/piece when the order is placed, and the price increases to 1.5 yuan/piece when the project is created.

This project is created because it is incompatible with the ordinary four-channel MAX7219 common cathode matrix driver module.

Features: Compatible with ordinary modules on the market, but using a common anode matrix

            Can be easily split into individual modules

            The set LED current is smaller to increase the life of the green/blue/white dot matrix. Please change RSET to 10kΩ when using the red and yellow dot matrix.

Note: The mounting holes are different due to the dot matrix restrictions.

                  A single dot matrix will show left and right reverse display effects. Please modify the program. For example, in the hack_clock source program, please add the sentence #define REVERSE_VERTICAL at the beginning.

                  When making samples, pay attention to whether the PCB you choose is one channel or four channels.

board:

Display effect on HACK_CLOCK:

Reference: https://www.pianshen.com/article/24461144287/

            https://datasheets.maximintegrated.com/en/ds/MAX7219-MAX7221.pdf

            MAX7219 drives a single 8X8 dot matrix LED module - Baidu Library (baidu.com)