PWM-Controlled LED & Servo Using Potentiometer 🎛️✨

Project Overview

This Arduino project demonstrates Pulse Width Modulation (PWM) by controlling the brightness of an LED and the position of a servo motor using a potentiometer. As you turn the potentiometer knob, the LED smoothly dims or brightens, while the servo motor rotates accordingly.

How It Works

• The potentiometer reads an analog input (0–1023) from pin A0.
• The analog value is mapped to two ranges:
  • 0–255 for LED brightness (PWM output to pin 10).
  • 0–180° for servo motor rotation (signal to pin 9).
• The analogWrite() function adjusts LED brightness.
• The servo.write() function moves the servo.

Circuit Connections

• Potentiometer:
  • Left pin → GND
  • Middle pin → A0 (Analog Input)
  • Right pin → 5V
• LED:
  • Anode (+) → Pin 10 (via resistor)
  • Cathode (–) → GND
• Servo Motor:
  • VCC (Red) → 5V
  • GND (Black/Brown) → GND
  • Signal (Yellow/Orange) → Pin 9

Demo (Tinkercad Simulation)

🔗 View the Project Simulation

Future Improvements

• Add an OLED display to show live PWM and servo angle values.
• Use a button to toggle between different PWM modes.

License

This project is open-source and available under the MIT License.