Interfacing Broken Light Sensor Module with Arduino

Broken Light Sensor Module

A Broken Light Sensor Module detects interruptions in light beams. It is commonly used in security systems, automation, and object detection applications where detecting light blockage is essential.

Working Principle of Broken Light Sensor

The Broken Light Sensor works by emitting a continuous beam of light (usually infrared or laser). When an object obstructs the beam, the sensor detects the interruption and signals the Arduino to trigger a response.

Types of Broken Light Sensors

Infrared Beam Sensor

  • An infrared emitter sends a beam of light to a receiver.
  • When an object breaks the beam, the receiver detects the change.
  • The Arduino processes the signal and performs the required action.

Laser Beam Sensor

  • A laser emitter projects a narrow beam towards a sensor.
  • Any obstruction in the beam triggers a signal to Arduino.
  • This setup is often used in security and automation.

Requirements

1. Arduino

2. Broken Light Sensor Module

3. Jumper wires

4. Resistors (if needed for signal stabilization)

Pin Configuration of Broken Light Sensor Module

Broken Light Sensor Module

  • VCC: Connect to +5V on Arduino.
  • GND: Connect to GND on Arduino.
  • OUT: Outputs a digital signal when the beam is interrupted.

Wiring the Broken Light Sensor to Arduino

To connect the Broken Light Sensor to Arduino, connect the VCC and GND to +5V and GND. The OUT pin connects to a digital input pin for reading the beam interruption signal.

Algorithm

  1. Initialize Components

    • Connect the VCC and GND pins of the Broken Light Sensor to +5V and GND on the Arduino.
    • Connect the OUT pin to a digital input pin.

  2. Write the Code

    • Set the sensor pin as INPUT in the setup() function.
    • Monitor the digital signal in the loop() function.
    • Trigger an action when the beam is interrupted.

  3. Display Values or Control Devices

    • Print the beam status to the serial monitor.
    • Use the readings to activate alarms or automation processes.

  4. Test the Project

    • Upload the code to the Arduino.
    • Interrupt the beam with an object and observe the response.

Applications of Broken Light Sensors

  • Security alarm systems
  • Object detection in automation
  • Counting systems in production lines
  • Smart doors and barriers
  • Vehicle entry and exit monitoring
  • Laser tripwire setups

Conclusion

Interfacing a Broken Light Sensor Module with Arduino allows for reliable object detection and automation applications. With simple wiring and coding, you can integrate beam interruption detection into security, robotics, and industrial systems.