Introduction

This experiment demonstrates how to use the TLC5940 PWM LED driver IC to control the brightness of LEDs using Pulse Width Modulation (PWM).

Materials Required

• TLC5940 PWM LED Driver IC
• LEDs
• Resistors
• Arduino Board
• Connecting Wires

No Ads Available.

Circuit Diagram

The TLC5940 IC controls the LEDs using PWM signals, adjusting the duty cycle to change the brightness of the LEDs.

Steps for the Experiment

1. Wire the TLC5940 to the Arduino and connect the LEDs to the output pins of the TLC5940.
2. Upload a program to the Arduino to control the PWM signals and adjust the LED brightness.

Explanation

The TLC5940 uses PWM to control the brightness of the LEDs, with higher duty cycles resulting in brighter LEDs. This allows for fine control over the intensity of light output.

Results and Observations

• The LEDs should change brightness according to the PWM signal sent from the Arduino through the TLC5940 IC.