Potentiometer

A potentiometer (often called a "pot") is a variable resistor that lets you adjust voltage manually. It's commonly used to control volume, brightness, motor speed, or as an analog input in Arduino and electronics projects.

Key Features:

• 3 Pins:
  • VCC (Power)
  • GND
  • Output (middle wiper pin)
• Types:
  • Rotary – Turn knob to adjust
  • Slide – Linear slider
• Typical Values: 1kΩ, 10kΩ, 100kΩ (most common: 10kΩ)

How It Works:

• Acts as a voltage divider
• As you turn or slide the pot, the output voltage varies between GND and VCC
• Perfect for analog input to a microcontroller (like Arduino’s A0–A5 pins)