Display modules are widely used throughout the industry to show the data to the user or to give indication and warnings to the user. It makes the interface user friendly even if he is not of technical background and makes it easier for him to control the activity without the need of an expert. One main problem with LED displays is that they use many interfacing connections to connect with the microcontroller or development board you are using and thus it is left with shortage of pins to connect with other modules. This MAX7219 Dot Matrix Module LED display solves this problem the use of MAX7219 LED Display driver which converts the serial data coming from the microcontroller to the parallel data to the LED Matrix Module. Thus you can control all 64 LEDs by using just 3 pins on your microcontroller board. Also, this is a 4 in 1 dot matrix module which means it has four 8×8 LED display modules which is again only controlled by 3 connection wires. The data for each LED is stored in 8×8 RAM onboard and can be accessed individually.
- 3 communication wires to communicate
- Pre-cascaded MAX7219 Dot Matrix LED Module
- Very compact size
- Onboard holes for easy mounting of the PCB
- Support for cascading multiple modules
- 5V working voltage
To use this module, you need to power the device with 5V supply to VCC and then Connect Data In (DIN Pin), Chip Select (CS) and CLK pins to the GPIO pins of your Microcontroller.
Datasheet of MAX7219 LED Driver IC
1× MAX7219 4-in-1 dot matrix module LED display
1× 5 Pin Berg Strip
5× Jumper Wires
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