#557 LED 8x8 Module
Building and using an 8x8 LED matrix with MAX7219 driver module.
Here’s a quick demo..
These MAX7219 8x8 LED dot matrix modules are very common and quite cheap. Usually they come assembled, but one can find sellers offering them as a “DIY” kit. The DIY option is not necessarily cheaper, but they are a nice quick little soldering project and may be more convenient if the plan is to daisy-chain multiple modules.
The kit is basically just the 1088AS LED matrix and a PCB for the MAX7219, pin headers, a pull-up resistor and decoupling capacitor.
8x8 LED Matrix
- Part Number: 1088AS
- Face Color: Black
- Type: Row Cathode Column Anode
- Wavelength : 625 ~ 630nm
- Emitted Colour: Red
- Forward Voltage : 2.1V ~ 2.5V
- Forward Current: 20mA
- Dimesions: 32mm x 32mm x 8.0mm
LED8x8Module.ino is a simple Arduino sketch that uses the LedControl library to sequence through all rows and columns to verify that addressing is correct and that all LEDs are functioning correctly.