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Add Led matrix library for UNO R4 WiFi
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‎libraries/Arduino_LED_Matrix/.unor4_only‎

Whitespace-only changes.

‎libraries/Arduino_LED_Matrix/examples/DisplaySingleFrame/DisplaySingleFrame.ino‎

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#include "Arduino_LED_Matrix.h"
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#include "frames.h"
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ArduinoLEDMatrix matrix;
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void setup() {
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Serial.begin(115200);
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matrix.begin();
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}
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void loop() {
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matrix.loadFrame(chip);
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delay(500);
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matrix.loadFrame(danger);
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delay(500);
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matrix.loadFrame(happy);
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delay(500);
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matrix.loadFrame(heart);
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delay(500);
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Serial.println(millis());
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}

‎libraries/Arduino_LED_Matrix/examples/DisplaySingleFrame/frames.h‎

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const uint32_t chip[] = {
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0x1503f811,
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0x3181103,
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0xf8150000
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};
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const uint32_t danger[] = {
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0x400a015,
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0x1502082,
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0x484047fc
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};
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const uint32_t happy[] = {
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0x19819,
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0x80000001,
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0x81f8000
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};
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const uint32_t heart[] = {
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0x3184a444,
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0x44042081,
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0x100a0040
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};
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/*
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const uint32_t fullOn[] = {
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0xffffffff,
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0xffffffff,
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0xffffffff
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}
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*/

‎libraries/Arduino_LED_Matrix/examples/GameOfLife/GameOfLife.ino‎

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/*
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Example developed starting from Toby Oxborrow's sketch
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https://github.com/tobyoxborrow/gameoflife-arduino/blob/master/GameOfLife.ino
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*/
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#include "Arduino_LED_Matrix.h"
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// grid dimensions. should not be larger than 8x8
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#define MAX_Y 8
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#define MAX_X 12
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// time to wait between turns
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#define TURN_DELAY 200
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// how many turns per game before starting a new game
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// you can also use the reset button on the board
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#define TURNS_MAX 60
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// number of patterns in predefined list
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#define MAX_PATTERNS 4
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// how many turns to wait if there are no changes before starting a new game
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#define NO_CHANGES_RESET 4
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int turns = 0; // counter for turns
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int noChanges = 0; // counter for turns without changes
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// game state. 0 is dead cell, 1 is live cell
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uint8_t grid[MAX_Y][MAX_X] = {
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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};
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int currentPattern = 0;
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String patternNames[] = {
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"Glider",
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"Light-weight spaceship",
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"R-Pentomino",
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"Diehard"
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};
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// custom starting grid patterns
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boolean cGrids[][MAX_Y][MAX_X] = {
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{ /* Glider */
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{0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
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},
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{ /* Light-weight spaceship */
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0},
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{0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0},
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{0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
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},
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{ /* R-Pentomino */
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
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},
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{ /* Die hard */
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{0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0},
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{1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
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}
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};
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ArduinoLEDMatrix matrix;
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void setup() {
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Serial.begin(9600);
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delay(1000);
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Serial.println("Conway's game of life on Arduino LED Matrix");
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matrix.begin();
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resetGrid();
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displayGrid();
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}
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void loop() {
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delay(TURN_DELAY);
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playGoL();
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turns++;
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// reset the grid if no changes have occured recently
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// for when the game enters a static stable state
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if (noChanges > NO_CHANGES_RESET) {
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resetGrid();
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}
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// reset the grid if the loop has been running a long time
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// for when the game cycles between a few stable states
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if (turns > TURNS_MAX) {
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resetGrid();
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}
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displayGrid();
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}
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// play game of life
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void playGoL() {
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/*
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1. Any live cell with fewer than two neighbours dies, as if by loneliness.
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2. Any live cell with more than three neighbours dies, as if by
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overcrowding.
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3. Any live cell with two or three neighbours lives, unchanged, to the next
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generation.
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4. Any dead cell with exactly three neighbours comes to life.
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*/
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boolean newGrid[MAX_Y][MAX_X] = {
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
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};
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for (int y = 0; y < MAX_Y; y++) {
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for (int x = 0; x < MAX_X; x++) {
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int neighboughs = countNeighbours(y, x);
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if (grid[y][x] == 1) {
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if ((neighboughs == 2) || (neighboughs == 3)) {
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newGrid[y][x] = 1;
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} else {
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newGrid[y][x] = 0;
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}
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} else {
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if (neighboughs == 3) {
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newGrid[y][x] = 1;
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} else {
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newGrid[y][x] = 0;
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}
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}
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}
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}
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// update the current grid from the new grid and count how many changes
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// occured
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int changes = 0;
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for (int y = 0; y < MAX_Y; y++) {
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for (int x = 0; x < MAX_X; x++) {
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if (newGrid[y][x] != grid[y][x]) {
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changes++;
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}
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grid[y][x] = newGrid[y][x];
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}
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}
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// update global counter when no changes occured
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if (changes == 0) {
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noChanges++;
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}
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}
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// count the number of neighbour live cells for a given cell
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int countNeighbours(int y, int x) {
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int count = 0;
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// -- Row above us ---
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if (y > 0) {
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// above left
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if (x > 0) {
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count += grid[y - 1][x - 1];
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}
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// above
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count += grid[y - 1][x];
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// above right
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if ((x + 1) < 8) {
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count += grid[y - 1][x + 1];
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}
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}
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// -- Same row -------
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// left
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if (x > 0) {
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count += grid[y][x - 1];
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}
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// right
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if ((x + 1) < 8) {
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count += grid[y][x + 1];
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}
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// -- Row below us ---
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if ((y + 1) < 8) {
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// below left
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if (x > 0) {
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count += grid[y + 1][x - 1];
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}
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// below
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count += grid[y + 1][x];
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// below right
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if ((x + 1) < 8) {
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count += grid[y + 1][x + 1];
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}
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}
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return count;
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}
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// reset the grid
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void resetGrid() {
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Serial.print("Current pattern: ");
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Serial.println(patternNames[currentPattern]);
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noChanges = 0;
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turns = 0;
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for (int y = 0; y < MAX_Y; y++) {
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for (int x = 0; x < MAX_X; x++) {
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grid[y][x] = cGrids[currentPattern][y][x];
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}
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}
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currentPattern++;
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if(currentPattern >= MAX_PATTERNS){
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currentPattern = 0;
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}
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}
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// display the current grid to the LED matrix
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void displayGrid() {
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matrix.renderBitmap(grid, 8, 12);
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}

‎libraries/Arduino_LED_Matrix/examples/LivePreview/LivePreview.ino‎

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/*
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This sketch allows live editing of the matrix pixels using WebSerial
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To test, head to https://ledmatrix-editor.arduino.cc
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press 'p' and select 'UNO R4 WiFi' board from the list.
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Don't forget to close any serial monitor already opened.
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*/
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#include "Arduino_LED_Matrix.h"
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ArduinoLEDMatrix matrix;
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void setup() {
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Serial.begin(115200);
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matrix.begin();
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}
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uint32_t frame[] = {
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0, 0, 0, 0xFFFF
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};
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void loop() {
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if(Serial.available() >= 12){
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frame[0] = Serial.read() | Serial.read() << 8 | Serial.read() << 16 | Serial.read() << 24;
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frame[1] = Serial.read() | Serial.read() << 8 | Serial.read() << 16 | Serial.read() << 24;
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frame[2] = Serial.read() | Serial.read() << 8 | Serial.read() << 16 | Serial.read() << 24;
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matrix.loadFrame(frame);
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}
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}
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‎libraries/Arduino_LED_Matrix/examples/MatrixFrameBuffer/MatrixFrameBuffer.ino‎

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#include "Arduino_LED_Matrix.h"
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ArduinoLEDMatrix matrix;
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uint8_t frame[8][12] = {
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{ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
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{ 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
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{ 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0 },
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{ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 }
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};
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unsigned long lastTickTime, lastGameTickTime;
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#define UPDATE_INTERVAL 100
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#define GAME_UPDATE_INTERVAL 66
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#define ROWS 8
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#define COLUMNS 12
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uint8_t pointX = 0, pointY = 0;
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void setup() {
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// put your setup code here, to run once:
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Serial.begin(115200);
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delay(1500);
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matrix.begin();
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lastGameTickTime = lastTickTime = millis();
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}
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void loop() {
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unsigned long msNow = millis();
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if (msNow - lastGameTickTime > GAME_UPDATE_INTERVAL) {
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pointX++;
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if (pointX >= COLUMNS) {
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pointX = 0;
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pointY++;
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if (pointY >= ROWS) {
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pointY = 0;
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}
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}
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pointX = random(COLUMNS);
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pointY = random(ROWS);
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uint8_t pixelValue = random(2);
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frame[pointY][pointX] = pixelValue;
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lastGameTickTime = msNow;
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}
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if (msNow - lastTickTime > UPDATE_INTERVAL) {
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matrix.renderBitmap(frame, 8, 12);
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lastTickTime = msNow;
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}
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}

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