syncTriggered = false;
void loop() if (syncTriggered) for (int col = 0; col < msgLength; col++) for (int row = 0; row < 8; row++) digitalWrite(ledPins[row], messageBuffer[col][row]); how to program usb led message fan
const int ledPins[] = 3,4,5,6,7,8,9; const int sensorPin = 2; byte messageBuffer[128][8]; // 128 columns x 8 LEDs void setup() attachInterrupt(digitalPinToInterrupt(sensorPin), sensorISR, RISING); // load font bitmap for message syncTriggered = false; void loop() if (syncTriggered) for