Light Sensitive Dimmer with Photodiode

Overview

This experiment demonstrates a dimmer circuit that adjusts the brightness of an LED based on the ambient light level detected by a photodiode.

Components Required

• Photodiode
• LED
• Transistor or MOSFET
• Resistors
• Power supply
• Breadboard and wires

Procedure

1. Connect the photodiode in a voltage divider configuration with the LED.

2. Observe the LED brightness change as the ambient light level varies.

Expected Result

The LED will dim or brighten depending on the amount of light detected by the photodiode.