Interfacing PIR Sensor with ESP32

// PIR Sensor with ESP32

const int pirPin = 2; // GPIO pin connected to the OUT pin of the PIR sensor

void setup() {
  Serial.begin(115200);
  pinMode(pirPin, INPUT);
}

void loop() {
  int pirState = digitalRead(pirPin);

  if (pirState == HIGH) {
    Serial.println("Motion detected!");
    // Add your desired actions when motion is detected
  } else {
    Serial.println("No motion");
    // Add your desired actions when no motion is detected
  }

  delay(1000); // Adjust the delay based on your project requirements
}

Explanation:

• The code initializes the PIR sensor pin and sets it as an input.
• In the loop() function, it reads the state of the PIR sensor. If motion is detected, it prints “Motion detected!” to the serial monitor; otherwise, it prints “No motion.”
• You can customize the code to perform specific actions when motion is detected or not detected.

Upload and Test:

1. Connect the ESP32 to your computer using a USB cable.
2. Select the correct COM port in the Arduino IDE (Tools -> Port).
3. Click the “Upload” button to upload the code to the ESP32.
4. Open the Serial Monitor (Tools -> Serial Monitor) to view the output.

Now, your ESP32 should detect motion using the PIR sensor, and you can further enhance the code based on your project requirements.