31 lines
634 B
C++
31 lines
634 B
C++
#include "LedControl.h"
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LedControl leds = LedControl(2, 4, 3, 2);
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void setup() {
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for (int i = 0; i < leds.getDeviceCount(); i++) {
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leds.shutdown(i, false);
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leds.clearDisplay(i);
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}
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Serial.begin(1000000);
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}
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void loop() {
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if (Serial.available()) {
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String line = Serial.readStringUntil('\n');
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for (int i = 0; i < line.length(); i += 2) {
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int x = i / 2;
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int y = (int) line.charAt(i) - '0';
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byte val = 0;
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for (int j = 0; j <= y; j++) {
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val ^= (1 << j);
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}
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if (x > 7) {
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leds.setRow(1, x-8, val);
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} else {
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leds.setRow(0, x, val);
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}
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}
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}
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} |