CJMCU-103 Rotary Position Sensor 10K Potentiometer Analog Angle Module

🔧 CJMCU-103 Rotary Position Sensor Module | AuscomTech

The CJMCU-103 is a compact rotary position sensing module based on a resistive potentiometer design.

It provides a continuous analog voltage output corresponding to shaft rotation, making it ideal for precise angle and position measurement.

Commonly used in Arduino, ESP32, and embedded systems for user input, control knobs, and position feedback applications.

⭐ Key Features

• Rotary Position Sensing – Accurately detects shaft position across a wide rotation range
• Analog Output Signal – Smooth voltage variation suitable for ADC input
• 10K Potentiometer Element – Standard resistance value for stable signal interfacing
• Wide Rotation Angle – Supports up to 333.3° continuous mechanical rotation
• High Linearity – ±2% linearity for reliable and repeatable measurements
• Compact Module Design – Easy integration into embedded and DIY projects
• Shaft Interface – Designed for rotary control and mechanical input systems

📊 Technical Specifications

• Model: CJMCU-103
• Technology: Resistive potentiometer
• Resistance: 10KΩ
• Resistance Tolerance: ±30%
• Linearity: ±2%
• Rotation Angle: 0° to 333.3°
• Output Type: Analog voltage
• Mounting Type: Surface mount
• Termination: SMD tab
• Operating Temperature: -40°C to +85°C

🧩 Typical Applications

• Rotary control inputs and knobs
• Position feedback systems
• Motor and servo position monitoring
• Arduino and ESP32 analog input projects
• Industrial control interfaces
• DIY electronics and prototyping

⚠️ Important Notes

• This is an analog sensor, not a digital encoder
• Requires an ADC-capable microcontroller input
• Ensure correct voltage reference for accurate readings
• Mechanical shaft and knob are not included

📦 Package Includes

• 1 × CJMCU-103 Rotary Position Sensor Module

🔗 Recommended Accessories (Not Included)

• Arduino or ESP32 board – for reading analog signals
• Rotary knob – for user input control
• Jumper wires – for quick connections
• Breadboard or PCB – for circuit integration