MAX7219 Digital Tube Display Module control module

MAX7219 Digital Tube Display Module control module

Price: $1.09Sku: FA2149
Product Introduction

MAX7219 Digital Tube Display Module control module


The MAX7219 is an integrated serial input/output common cathode display driver that connects the microprocessor to an 8-digit, 7-segment digital LED display, as well as a bar diagram display or 64 separate leds. It includes an on-chip b-type BCD encoder, a multiplex scan loop, a segment driver, and an 8-by-8 static RAM for each piece of data. Only one external register is used to set the segment current of each LED.

A convenient four-wire serial interface can be used to connect all common microprocessors. Each data can be addressed without overwriting all displays at update time. The MAX7219 also allows the user to choose whether to encode or not encode each piece of data.

The entire device includes A 150-a low-power off mode, analog and digital brightness controls, A scan limit register that allows users to display 1-8 bits of data, and A detection mode that makes all leds glow.

Only three IO ports are needed to drive the 8-bit nixie tube! No flicker when digital tube display! Support cascading! The display effect is as follows:

The digital tube and PCB board are connected by a round hole with a distance of 2.54mm, which makes it easy to replace the digital tube!

Another picture on the back:

Four corners of PCB board are fixed by copper stud, which can effectively prevent short circuit and other accidents!

The nixie tube is 0.36 inch 4-bit integrated cathode nixie tube

This module is compatible with 5V/ 3.3v microcontroller (51/AVR/STM32……)

Wiring instructions (take the provided program as an example, you can connect any IO port and modify the port definition in the program) :

The VCC – 5 v


DIN – P00

CS – P01

The CLK – P02

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