https://github.com/pythonicforge/pwm_led_servo_control

A PWM-powered Arduino project that smoothly controls LED brightness and servo motor position using a potentiometer
https://github.com/pythonicforge/pwm_led_servo_control

arduino embedded-systems led-controller potentiometer pwm servo-motor

Last synced: 9 months ago
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A PWM-powered Arduino project that smoothly controls LED brightness and servo motor position using a potentiometer

• Host: GitHub
• URL: https://github.com/pythonicforge/pwm_led_servo_control
• Owner: pythonicforge
• License: mit
• Created: 2025-03-10T07:25:58.000Z (9 months ago)
• Default Branch: main
• Last Pushed: 2025-03-10T07:41:12.000Z (9 months ago)
• Last Synced: 2025-03-28T11:18:48.403Z (9 months ago)
• Topics: arduino, embedded-systems, led-controller, potentiometer, pwm, servo-motor
• Language: C++
• Homepage:
• Size: 505 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# _**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](https://www.tinkercad.com/things/b9VSYczKi9e-potentiometer-controlled-servo-and-led?sharecode=OkY8jpuE1gOwOtlxa4Cks5bIVmKN4RTRY4rDctx_wZQ) 

### **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**](LICENSE).