Arduino Uno R4 LED Matrix 2-Digit Number Library

A powerful Arduino library that generates 2-digit numbers for the Arduino Uno R4's LED Matrix.

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Table of Contents

• Features
• Installation
• Basic Usage
• Examples

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Features

• Generate 2-digit numbers for the Arduino Uno R4's LED Matrix.
• Supports numbers from 0 to 99

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Installation

1. Download the library by clicking on the Latest Release link.
2. Extract the downloaded ZIP file.
3. Move the extracted folder to the Arduino libraries directory.
   • For Windows: Documents/Arduino/libraries/
   • For macOS: ~/Documents/Arduino/libraries/
   • For Linux: ~/Arduino/libraries/
4. Restart the Arduino IDE.

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Usage

1. Include the library in your Arduino sketch:

   #include <ArduinoR4DigitDisplay.h>

2. Include the Aruino Matrix Library and create a matrix instance:

   #include "Arduino_LED_Matrix.h"
   ArduinoLEDMatrix matrix;

3. Setup the Sketch:

   void setup() {
      Serial.begin(115200);
      matrix.begin();
   }

4. Create the matrix frame:

   uint8_t frame[8][12] = {
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
      { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
    };

5. Create the sketch loop with the drawNumber function:

   void loop(){
    drawNumber(49,frame);
    matrix.renderBitmap(frame, 8, 12);
   }

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Examples

#include <ArduinoR4DigitDisplay.h>

#include "Arduino_LED_Matrix.h"

ArduinoLEDMatrix matrix;

void setup() {
  Serial.begin(115200);
  matrix.begin();
}

uint8_t frame[8][12] = {
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};

void loop(){
  drawNumber(49,frame);
  matrix.renderBitmap(frame, 8, 12);
}