このプロジェクトで何が間違っているのか知りたいです。私は 8x8 マトリックス コードを持っていて、それを 5x7 LEDマトリックスに適合させようとしました。
したがって、FrequencyTimer2 ライブラリを使用していること、およびArduino Uno のポートの量のためにオレンジ色の LED しか使用できなかったことを覚えておくことが重要です。
LED マトリックス 5x7 マッピング:
元のコード(最初のサンプル コード)
適応コード:
/*
* Show messages on an 8x8 LED matrix,
* scrolling from right to left.
*
* Uses FrequencyTimer2 library to
* constantly run an interrupt routine
* at a specified frequency. This
* refreshes the display without the
* main loop having to do anything.
*
*/
#include <FrequencyTimer2.h>
#define SPACE { \
{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}, \
}
#define H { \
{1, 0, 0, 1, 0}, \
{1, 0, 0, 1, 0}, \
{1, 0, 0, 1, 0}, \
{1, 1, 1, 1, 0}, \
{1, 0, 0, 1, 0}, \
{1, 0, 0, 1, 0}, \
{1, 0, 0, 1, 0}, \
}
#define E { \
{1, 1, 1, 1, 0}, \
{1, 0, 0, 0, 0}, \
{1, 0, 0, 0, 0}, \
{1, 1, 1, 1, 0}, \
{1, 0, 0, 0, 0}, \
{1, 0, 0, 0, 0}, \
{1, 1, 1, 1, 0} \
}
#define L { \
{1, 0, 0, 0, 0}, \
{1, 0, 0, 0, 0}, \
{1, 0, 0, 0, 0}, \
{1, 0, 0, 0, 0}, \
{1, 0, 0, 0, 0}, \
{1, 0, 0, 0, 0}, \
{1, 1, 1, 1, 0} \
}
#define O { \
{1, 1, 1, 1, 0}, \
{1, 0, 0, 1, 0}, \
{1, 0, 0, 1, 0}, \
{1, 0, 0, 1, 0}, \
{1, 0, 0, 1, 0}, \
{1, 0, 0, 1, 0}, \
{1, 1, 1, 1, 0} \
}
byte col = 0;
byte leds[5][7];
// pin[xx] on LED matrix connected to nn on Arduino (-1 is dummy to make array start at pos 1)
int pins[14]= {-1, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
// col[xx] of LEDs = pin yy on LED matrix
int cols[5] = {pins[13], pins[11], pins[10], pins[4], pins[6]};
// row[xx] of LEDs = pin yy on LED matrix
int rows[7] = {pins[5], pins[2], pins[3], pins[9], pins[8], pins[7], pins[12]};
const int numPatterns = 6;
byte patterns[numPatterns][8][8] = {
H,E,L,L,O,SPACE
};
int pattern = 0;
void setup() {
// Sets the pins as output
for (int i = 1; i <= 16; i++) {
pinMode(pins[i], OUTPUT);
}
// Set up cols and rows
for (int i = 1; i <= 8; i++) {
digitalWrite(cols[i - 1], LOW);
}
for (int i = 1; i <= 8; i++) {
digitalWrite(rows[i - 1], LOW);
}
clearLeds();
// Turn off toggling of pin 11
FrequencyTimer2::disable();
// Set refresh rate (interrupt timeout period)
FrequencyTimer2::setPeriod(2000);
// Set interrupt routine to be called
FrequencyTimer2::setOnOverflow(display);
setPattern(pattern);
}
void loop() {
pattern = ++pattern % numPatterns;
slidePattern(pattern, 60);
}
void clearLeds() {
// Clear display array
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 8; j++) {
leds[i][j] = 0;
}
}
}
void setPattern(int pattern) {
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 8; j++) {
leds[i][j] = patterns[pattern][i][j];
}
}
}
void slidePattern(int pattern, int del) {
for (int l = 0; l < 8; l++) {
for (int i = 0; i < 7; i++) {
for (int j = 0; j < 8; j++) {
leds[j][i] = leds[j][i+1];
}
}
for (int j = 0; j < 8; j++) {
leds[j][7] = patterns[pattern][j][0 + l];
}
delay(del);
}
}
// Interrupt routine
void display() {
digitalWrite(cols[col], LOW); // Turn whole previous column off
col++;
if (col == 8) {
col = 0;
}
for (int row = 0; row < 8; row++) {
if (leds[col][7 - row] == 1) {
digitalWrite(rows[row], LOW); // Turn on this LED
}
else {
digitalWrite(rows[row], HIGH); // Turn off this LED
}
}
digitalWrite(cols[col], HIGH); // Turn whole column on at once (for equal lighting times)
}