Module d’évitement d’obstacles infrarouge HW-201

/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : IR Obstacle Detection with HW-201
 *  Board     : Arduino UNO (arduino:avr:uno)
 *  Parts     : HW-201 Infrared Obstacle Avoidance Module
 *  Libraries : none (built-in)
 *
 *  Codey Online is an AI-powered browser IDE for Arduino and ESP32.
 *  Describe your project and Codey writes the code, draws the wiring
 *  diagram and uploads it to your board, straight from the browser.
 *  This code is free to use, modify and share, without warranty.
 * ==================================================================
 */

// Pin definitions
const int sensorPin = 2;
const int ledPin = 13;

void setup() {
  pinMode(sensorPin, INPUT);
  pinMode(ledPin, OUTPUT);

  Serial.begin(115200);
  Serial.println(F("HW-201 IR Obstacle Sensor Demo"));
  Serial.println(F("Ready: Move an object in front of the sensor."));
}

void loop() {
  // The HW-201 sensor outputs LOW when an obstacle is detected
  int sensorState = digitalRead(sensorPin);

  if (sensorState == LOW) {
    digitalWrite(ledPin, HIGH);
    Serial.println(F("Obstacle Detected!"));
  } else {
    digitalWrite(ledPin, LOW);
    Serial.println(F("Clear (no obstacle)"));
  }

  delay(200);
}

/*
 * ==================================================================
 *  Generated by Codey.online  —  https://www.codey.online
 * ==================================================================
 *  Project   : IR Obstacle Detection with ESP32
 *  Board     : ESP32 DEVKIT V1 (esp32:esp32:esp32doit-devkit-v1)
 *  Parts     : HW-201 Infrared Obstacle Avoidance Module
 *  Libraries : none (built-in)
 *
 *  Codey Online is an AI-powered browser IDE for Arduino and ESP32.
 *  Describe your project and Codey writes the code, draws the wiring
 *  diagram and uploads it to your board, straight from the browser.
 *  This code is free to use, modify and share, without warranty.
 * ==================================================================
 */

// HW-201 IR Obstacle Sensor with ESP32
const int SENSOR_PIN = 4;   // Connected to OUT pin of HW-201
const int LED_PIN = 2;      // Onboard LED

void setup() {
  Serial.begin(115200);
  pinMode(SENSOR_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
  
  Serial.println("HW-201 Obstacle Sensor Ready");
}

void loop() {
  // The HW-201 output is active-LOW (LOW when an obstacle is detected)
  int sensorState = digitalRead(SENSOR_PIN);

  if (sensorState == LOW) {
    digitalWrite(LED_PIN, HIGH);
    Serial.println("Obstacle detected!");
  } else {
    digitalWrite(LED_PIN, LOW);
    Serial.println("Path clear");
  }

  delay(200);
}