Specification:

Features:

🎚️ Analog Voltage Output Control

• Provides smooth, linear analog voltage from 0V to VCC (typically 5V or 3.3V).

• Perfect for applications requiring variable user input, like adjusting brightness, speed, or volume.

🔄 Mechanical Rotation (~270°)

• Offers approximately 270 degrees of rotation, allowing precise control over the output.

• Ensures a gradual and consistent response across the full range of motion.

⚙️ High-Precision 10KΩ Potentiometer

• Utilizes a 10 kilo-ohm linear taper potentiometer, which ensures uniform resistance change as you turn the knob.

• Compatible with most microcontrollers and analog input devices.

🔌 Easy 3-Pin Interface

• VCC, GND, and Signal (A0) — simple to connect to ESP32, Pi (with ADC), and more.

• Reduces wiring complexity and integrates easily into breadboards and prototyping environments.

🔧 User-Friendly Knob with Detent Feel (Optional)

• Comes with a rotary knob cap for comfortable manual control.

• Some variants include detent clicks or textured rotation for tactile feedback (varies by model).

🧰 Plug-and-Play Module Design

• Mounted on a compact PCB with clearly labeled pins.

• Compatible with breadboards, jump wires, or direct soldering.

🔋 Wide Voltage Compatibility

• Operates from 3.3V to 5V, making it suitable for both low-power and standard-voltage systems.

🔁 Reusability & Reliability

• Durable potentiometer rated for thousands of rotation cycles.

• Easily reusable across multiple projects — ideal for makers, students, and developers.

🧪 Real-Time Adjustability

• Modify analog input values on-the-fly during testing or in deployed projects.

• Great for debugging and tuning sensor sensitivity, thresholds, and output values.

📏 Compact Size for Embedded Use

• Small footprint makes it ideal for space-constrained embedded systems and portable electronics.

📟 Compatible with ADC Devices

• Works seamlessly with any microcontroller featuring Analog-to-Digital Conversion, such as:

  • Uno/Nano/Pro Mini

  • ESP8266 / ESP32

  • STM32 Blue Pill

  • Pi Pico (with ADC)

  • Micro:bit (with interface board)

🔧 Multipurpose Input Device

• Can be used as a variable input knob, scrolling wheel, selector dial, or analog menu controller in custom GUIs and embedded UIs.

Description:

The Rotary Potentiometer Analog Knob Module is a simple yet essential input device used to provide analog control signals in electronics projects. It works by changing resistance as the knob is rotated, and outputs a variable voltage level (typically 0V to 5V or 0V to 3.3V) corresponding to the rotation angle. This analog output can be read by any microcontroller with an ADC (Analog-to-Digital Converter) pin.

The module typically includes a 10KΩ linear potentiometer mounted on a breakout board for easy interfacing. It comes pre-soldered with 3 pins: VCC, GND, and Analog Out (A0). Turning the knob clockwise or counterclockwise adjusts the voltage output, making it perfect for applications such as volume controls, sensor calibration, brightness adjustments, motor speed control, and more.

Unlike a rotary encoder, this module does not count steps or direction — it provides a continuous, smooth analog signal, not discrete pulses.