About Encoder Module

The Encoder Module can be useful for controlling your applications. The module is equipped with a high-quality rotary encoder manufactured by Bourns and features high reliability and durability. The rotary encoder is also equipped with a push-button switch.

The rotary encoder has 12 positions per revolution. The rotation range is not limited such as with a potentiometer and can be rotated in either direction at any number of revolutions.

The module was designed primarily to complement the LCD Module. A typical application is a wireless thermostat. The rotary encoder could be used as a convenient navigation control in the graphical menu.

This module also features three 5-pin sockets allowing you to connect HARDWARIO TOWER tags.


The illustrated aluminum knob is not a part of the module and is sold as an optional accessory separately.



SDK Library

Header File

Source File



  • Rotary encoder PEC12R (Bourns)

  • 12 positions per revolution

  • Integrated push-button switch

  • 3x connector for HARDWARIO TOWER Tag

  • Operating temperature range: -20 to 70 °C

  • Minimum lifetime: 30,000 revolution cycles

  • Dimensions: 88 x 55 mm