ITR20403 / Photoelectric Switch / Optical Trough Coupler

Description

What is the ITR20403 Photoelectric Switch? The ITR20403 photoelectric switch is an optical trough coupler designed for various applications such as object detection and movement monitoring. This component allows circuits to be interrupted or completed when an object passes through its light beam. Features: Optical Trough Coupler Ideal for projects requiring object or motion detection, suitable for alarm systems, door and window monitoring, or any application needing line-of-sight object presence detection. Compatible with Arduino and other microcontrollers. Tutorial: How to Use the ITR20403 Photoelectric Switch The ITR20403 photoelectric switch is perfect for projects that require object detection or motion monitoring. Suitable for beginners and intermediate users, it’s ideal for anyone looking to implement a detection function in their project. What You Need: ITR20403 Photoelectric Switch Arduino 10kΩ Resistor Power Cable Steps: 1. Connect the Arduino to the power source. 2. Mount the photoelectric switch on the circuit with the emitter and receiver facing each other. 3. Connect the output of the photoelectric switch to a digital pin on the Arduino (e.g., D2). 4. Connect the 10kΩ resistor between the digital pin and VCC of the Arduino. 5. Connect the ground of the photoelectric switch to the ground of the Arduino. 6. Upload the following code to the Arduino. 7. Check that the switch functions correctly. 8. Adapt the code for your specific project. Example Code: “` int sensorPin = 2; int val = 0; void setup() { pinMode(sensorPin, INPUT); } void loop() { val = digitalRead(sensorPin); if (val == HIGH) { Serial.println(“Object present”); } else { Serial.println(“No object”); } } “` Mini-project: Create a simple alarm system that turns on an LED when an object approaches the photoelectric switch. Common Mistakes: Ensure the photoelectric switch is correctly oriented. Check that the digital pin is properly configured as INPUT. Verify that the resistor is correctly connected. Make sure the Arduino is well powered. Recommended Accessories: LED Resistor for LED 9V Battery