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Battery-Powered IR Sensor and Buzzer Alarm System

Image of Battery-Powered IR Sensor and Buzzer Alarm System

Circuit Documentation

Summary

This circuit consists of an IR sensor, a buzzer, and a 9V battery. The IR sensor detects an object and triggers the buzzer to sound an alarm. The circuit is powered by a 9V battery.

Component List

  1. IR Sensor

    • Pins: out, gnd, vcc
    • Description: Detects infrared light and outputs a signal when an object is detected.
    • Purpose in Circuit: To detect objects and send a signal to the buzzer.
  2. Buzzer

    • Pins: PIN, GND
    • Description: Emits sound when a signal is received.
    • Purpose in Circuit: To sound an alarm when triggered by the IR sensor.
  3. 9V Battery

    • Pins: -, +
    • Description: Provides power to the circuit.
    • Purpose in Circuit: To supply the necessary voltage to the IR sensor and buzzer.

Wiring Details

IR Sensor

  • Pin out is connected to GND of the Buzzer.
  • Pin gnd is connected to - of the 9V Battery.
  • Pin vcc is connected to PIN of the Buzzer and + of the 9V Battery.

Buzzer

  • Pin GND is connected to out of the IR Sensor.
  • Pin PIN is connected to vcc of the IR Sensor and + of the 9V Battery.

9V Battery

  • Pin - is connected to gnd of the IR Sensor.
  • Pin + is connected to vcc of the IR Sensor and PIN of the Buzzer.

Code

There is no microcontroller code associated with this circuit.