12-Bit Tactile Potentiometer Input

  • Digitally Read Potentiometer Position over I2C Bus
  • ADC121C021 ADC with 12-Bit Resolution
  • Up to 9 Devices per I2C Interfaces
  • Up to 188k Samples per Second


Our I2C Potentiometer Mini Module provides a convenient solution for applications that require digital readings of a user-set potentiometer.  

This Mini Module allows users to ask for the potentiometer position over the I2C bus, converting tactile movements into digital data that can be used for a multitude of interface applications.

Digitally read the on-board potentiometer and use the incoming data for IoT-based light-dimming applications, or fine-tune program settings using a conventional knob.  

This potentiometer can even be used to digitally control the audio volume of your Raspberry Pi by writing software instead of conventional analog audio signal processing.  Integrated ADC121C021 12-Bit analog-to-digital converter allows up to 9 devices to chain to a single I2C bus, capable of reading 4096 positions per potentiometer.  


  • Light Dimming
  • Motor Speed Control
  • Volume and Tone Controls
  • Medical Instruments
  • Test Equipment 
  • Automotive 


This is a general purpose I²C device compatible with all computing platforms and IoT technologies, including Raspberry Pi, BeagleBone, Arduino, Particle, BridgeX5, and many more.  All ControlEverything.com devices support a strict +5V I²C Bus standard.

Arduino Nano and Micro Interfaces:
Plug this Device into the Arduino Nano I²C Shield
Plug this Device into any Arduino Nano Master Device
Plug this Device into any Arduino Micro Master Device
Plug this Device into the Arduino Uno Interface Adapter

ESP8266 IoT Interfaces:
Use our ESP8266 Module and the PEI2C Interface Adapter
Use our ESP8266 Adapters for Adafruit and Huzzah

Onion Omega 1 & 2 IoT Interface:
Use our Onion Omega Adapters

Raspberry Pi Interfaces:
Use the Raspberry Pi I²C Interface Adapter
Use the Raspberry Pi 2/3 I²C Interface Adapter
Use the Raspberry Pi Zero I²C Interface Adapter

Particle IoT Interfaces: 
Plug this Device into the Particle Photon I²C Shield
Use as Expansion for any Particle Photon Device
Use as Expansion for any Particle Electron Device
Note: All devices above are compatible with Bluz Bluetooth Interface

Pycom IoT Interface:
Plug this Device into the WiPy I²C Shield

BeagleBone Interface:
Use the BeagleBone I²C Interface Adapter

Windows 8/10 PC Interface:
Use the Bridge Series Controller

Mini Modules

Our mini modules provide a standardized footprint to simplify the design of your project, and allow for a smaller form factor without sacrificing the plug-and-play  ease of use that our product line affords.

All I²C Mini Modules are designed to operate at 5VDC. Using a convenient quick connect 4-Pin plug, devices can be daisy-chained onto the I²C Bus, eliminating the need for soldering. Simply plug together the devices you need for your next automation application.

Pull-up resistors are included with all ControlEverything.com master devices. If you are wiring in your own I²C port, on-board 4.7K jumper-selectable pull-up resistors are available for convenience purposes.

All mini modules are 50.8 x 31.75 mm.


Dimensions: 50.80000 x 31.75000 x 18.00000 mm
Wiring diagram