RGB-Matrix-Driver-NuMaker

Demo Video: [Link]

Overview

This project provides a driver for a 64x32 RGB LED matrix, utilizing the NuMaker Uno 131 microcontroller. It is adapted from the LED-Matrix-Display-Driver-Library STM32 to function seamlessly with the NuMaker platform. With minor modifications, this library can be compatible with various other microcontrollers.

Feature

• Microcontroller: NuMaker 131 Uno
  • Driver and GPIO are managed using the "NUC131Series_BSP_CMSIS_v3.00.004" and are set directly to the register level.
• Display Specifications:
  • Resolution: 64x32 pixels
  • Color Depth: RGB332
  • Hue Levels: 4 each for Red, Green, and Blue channels

Note: To adapt this driver for different RGB formats or display sizes, you'll need to recalculate the buffer size and modify the display functions accordingly.

Note: If you want SD Card support, you can look at ChaN's FatFS.

Pin Configuration

For users employing the NuMaker 131 Uno board, the following GPIO pin configuration is recommended:

Line	GPIO Pin
R0	PF4
G0	PF5
B0	PA10
GND	GND PIN
R1	PA11
G1	PA15
B1	PE5
GND	GND PIN
A	PA0
B	PA1
C	PA2
D	PA3
CLK	PB11
LAT	PA14
OE	PA13
GND	PA12

The pin setting funnction in DisplayInit() function is defined by "NUC131Series_BSP_CMSIS_v3.00.004", which can be found in the NuVoton's website

Getting Started

Prerequisites

Before running the code, ensure you have installed the required board package:

1. Open Arduino IDE.
2. Navigate to Tools → Board Manager.
3. Search for NuMaker UNO and install it.

Running an Example

Follow these steps to run an example sketch:

1. Create a new directory with the same name as the example file (example/_____.ino).
2. Copy the _____.ino file into the newly created directory.
3. Copy all files from the src/ directory into the same directory.
4. Open the .ino file in the Arduino IDE and upload the code to the board.

Displaying an Image

To display an image on the LED matrix:

1. Convert your image file to .bmp format.
2. Use bmp2h.py to convert the BMP file into a byte array (.h) file.
3. Include the generated .h file in your .ino sketch.
4. Call the displayLoadImage() function to load and display the image.

Adding a New Font Style

The process of adding a new font style follows the same logic as displaying an image:

1. Convert the font data into a compatible byte array.
2. Include the generated .h file in your project.
3. Modify the display function to support the new font style.