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Battery-Powered Light-Dependent LED Circuit

Image of Battery-Powered Light-Dependent LED Circuit

Circuit Documentation

Summary

This document provides a detailed description of a simple circuit that includes a Light Dependent Resistor (LDR), a red LED, and a 9V battery. The circuit is designed to control the LED based on the light intensity detected by the LDR.

Component List

  1. LDR (Light Dependent Resistor)

    • Pins: A0, D0, GND, VCC
    • Description: A sensor that changes its resistance based on the light intensity.
    • Purpose in Circuit: To detect light intensity and control the LED accordingly.
  2. LED: Two Pin (red)

    • Pins: Cathode, Anode
    • Description: A red light-emitting diode.
    • Purpose in Circuit: To emit light when powered.
  3. 9V Battery

    • Pins: -, +
    • Description: A 9V power source.
    • Purpose in Circuit: To provide power to the circuit.
  4. Comment

    • Description: Placeholder for comments in the circuit design.
    • Purpose in Circuit: Not applicable.

Wiring Details

LDR (Light Dependent Resistor)

  • Pin A0: Not connected.
  • Pin D0: Connected to the anode of the LED.
  • Pin GND: Connected to the cathode of the LED and the negative terminal of the 9V battery.
  • Pin VCC: Connected to the positive terminal of the 9V battery.

LED: Two Pin (red)

  • Pin Anode: Connected to pin D0 of the LDR.
  • Pin Cathode: Connected to pin GND of the LDR and the negative terminal of the 9V battery.

9V Battery

  • Pin -: Connected to pin GND of the LDR and the cathode of the LED.
  • Pin +: Connected to pin VCC of the LDR.

Code

There is no embedded code associated with this circuit.


This document provides a comprehensive overview of the circuit, including the components used, their connections, and their roles within the circuit.