: A door entry alarm that logs timestamps to an SD card.
// Light Clapper Starter const int sensorPin = 2; // Sound sensor digital output const int ledPin = 13; // Built-in LED bool ledState = false; void setup() { pinMode(sensorPin, INPUT); pinMode(ledPin, OUTPUT); } void loop() { int status = digitalRead(sensorPin); if (status == HIGH) { // If sound is detected ledState = !ledState; // Toggle LED digitalWrite(ledPin, ledState ? HIGH : LOW); delay(500); // Small delay to prevent double-triggering } } Use code with caution. Copied to clipboard Arduino and Raspberry Pi Sensor Projects for th...
Arduino and Raspberry Pi Sensor Projects for the Evil Genius : A door entry alarm that logs timestamps to an SD card