Op werkdagen vóór 14:00 uur besteld = dezelfde dag verzonden en in 98% van de gevallen de volgende dag in huis. Gratis retourneren 30 dagen bedenktijd 1 jaar garantie
← Tillbaka till översikten

Kopplingsschema och kodexempel

Så här kopplar du Infraröd hinderundvikningsmodul HW-201 till en Arduino UNO eller ESP32, med ett exempel­sketch som du kan ladda upp direkt.

IR Obstacle Detection with HW-201

This project uses an HW-201 infrared obstacle avoidance sensor to detect nearby objects. When an obstacle comes into range, the sensor's digital output goes LOW, turning on the Arduino's built-in LED and printing detection alerts to the Serial Monitor. Adjust the onboard potentiometer on the sensor module to calibrate the detection distance.

Kopplingsschema: Infraröd hinderundvikningsmodul HW-201 på en Arduino UNO
Kopplingsschema · Klicka för att förstora
Kopplingstabell: Infraröd hinderundvikningsmodul HW-201 på en Arduino UNO
Kopplingstabell · Klicka för att förstora
IR_Obstacle_Detection_with_HW_201.ino · kompilerad och testad
/*
 * ==================================================================
 *  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);
}

Wiring diagram and example code generated by Codey.online — https://www.codey.online

IR Obstacle Detection with ESP32

This project reads the digital output from the HW-201 Infrared Obstacle Avoidance Module. When an object is detected within range, the sensor output drops LOW, lighting up the ESP32's built-in LED and printing an alert to the Serial Monitor. You can adjust the detection distance using the potentiometer on the module.

Kopplingsschema: Infraröd hinderundvikningsmodul HW-201 på en ESP32 DevKit V1
Kopplingsschema · Klicka för att förstora
Kopplingstabell: Infraröd hinderundvikningsmodul HW-201 på en ESP32 DevKit V1
Kopplingstabell · Klicka för att förstora
IR_Obstacle_Detection_with_ESP32.ino · kompilerad och testad
/*
 * ==================================================================
 *  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);
}

Wiring diagram and example code generated by Codey.online — https://www.codey.online

Tidigare visade

Nano 3.0 I/O Expansion Shield

Nano 3.0 I/O Expansion Shield

€ 2,60
Visa
1x AA batterihållare (1.5V)

1x AA batterihållare (1.5V)

€ 1,00
Velleman Reservspets 3 mm, avfasad

Velleman Reservspets 3 mm, avfasad

€ 2,95