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Millis Delay Example
const int ledPin = 13;
int ledState = LOW;
long previousTime = 0;
long interval = 1000;
void setup() {
pinMode(ledPin, OUTPUT);
void loop()
unsigned long currentTime = millis();
if(currentTime - previousTime > interval) {
previousTime = currentTime;
if (ledState == LOW)
ledState = HIGH;
ledState = LOW;
digitalWrite(ledPin, ledState);
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