Gorillacell Module 009: 8x8 Dot Matrix SPI
Table of Contents
A dot matrix display is a 2-dimensional array of LEDs that can be used to represent a character, an icon, or any symbol.
Gorillacell ESP32 development kit comes with 1 piece of 8x8 Dot Matrix display module that is driven using MAX7219 driver chip to simplify wiring connection and to provide an SPI communication interface.
BASIC INFORMATION
| Device | Category | Interface | Chipset | Description |
|---|---|---|---|---|
| Output | Display Cell | Serial SPI | MAX7219 | - |
PINOUT
It has 5 pins which are
- GND - for the ground pin,
- VCC - for the supply voltage,
- DIN – for the SPI serial data pin,
- CLK – for the SPI serial clock pin, and
- CS – for the SPI serial Chip Select pin.
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