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This product has 1 related files, and can be downloaded for free.

  1. library for MAX7219 and MAX7221 Led display drivers (ZIP)

Product Description

MAX7219 digital display control module. Works great for Arduino.

This module is compatible with 5V and 3.3V microcontrollers (51/AVR/STM32, etc). (ive tested both and they work well!)

MAX7219 is an integrated serial input / output common-cathode display driver, which connects your microprocessor to a 7-segment digital LED display with 8 digits.
Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays.
Comes with a Straight 5 pin header and a Right angle 5 pin header.
Power: 5V

USES the LedControl libaray:

Wiring instructions: you can actually pop open the example programs in the LedControl Libary and look at the pin settings or change them.

DIN: P00
CS: P01
CLK: P02

Material: metal
Rough size: 8.2*1.5*1.2cm

Package Contents:

1*MAX7219 digital display module
1*Straight 5 pin header
1* Right angle 5 pin header (90 degree)




Note: Do not incorrectly connect the VCC and GND in reverse, or you will kill the display. There is no RP protection.

Click here to read the California regulatory warning.