Product description: Matrix 128 LED 16x8 MAX7219 for Raspberry Pi
The cover plate is equipped with two 64 LED matrices' slots. Two LED matrix modules with a total of128 LEDsandredcolour are included. The overlay module is based on theMAX7219controller and communicates with the SPI interface. It is equipped with connectors matching the Raspberry Pi GPIO ports.
LED matrix cover for Raspberry Pi.Connecting the LED Master Cover
In the table there are descriptions of the GPIO Raspberry Pi pins used by the overlay. The module communicates through the SPI minicomputer interface and uses 26 GPIO Raspberry Pi pins.
| Pin | Symbol | Description |
|---|---|---|
| 1, 17 | 3.3V | Supply voltage 3.3V. |
| 2, 4 | 5V | Supply voltage 5.0 V. |
| 3, 5, 7, 8, 10, 11, 12, 13, 15, 16, 18, 21, 22, 26 |
NC | Not used. |
| 6, 9, 14, 20, 25 |
GND | System weight. |
| 19 | MOSI | SPI bus data line. |
| 23 | SCK | SPI bus clock line. |
| 24 | CE0 | Chip select, SPI bus device selection, activated by low state. |
LED matrix cover plate specification
| Parameter | Value |
|---|---|
| Power supply | From Raspberry Pi pins |
| Number of diodes | 128 |
| LED matrix | 16 x 8 pixels |
| Color of the diodes | Red |
| Controller | MAX7219(documentation) |
| Interface | SPI |
| It cooperates with | Raspberry Pi 4B / 3B+ / 3B / 2B / Zero |
| Dimensions | 64.3 x 35 x 26.5 mm |
Useful links |
