Adafruit I2C Stemma QT Rotary Encoder Breakout with Encoder - STEMMA QT / Qwiic

The Stemma QT rotary encoder breakout board offers a hassle-free, plug-and-play experience with a pre-soldered PEC11-pinout rotary encoder featuring a built-in push switch. It includes an onboard microcontroller preloaded with Adafruit’s seesaw firmware, enabling easy tracking of encoder pulses and button presses via I2C. This compact 1" x 1" board supports 3–5V power and logic and integrates seamlessly with a wide range of microcontrollers, from Arduino UNO to Raspberry Pi. It also features a NeoPixel for customizable visual feedback, interrupt capabilities for efficient motion detection, and six breakout pads for breadboard use. Up to eight encoders can be daisy-chained on a single I2C bus using address jumpers. The 45-degree angled encoder footprint saves space, and the board comes fully assembled with a header included—though you'll need to supply your own knob and QT cable. Compatible with Adafruit's Arduino and Circuit Python libraries, this board supports easy integration into any I2C-based project.

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Feature:

1. Pre-soldered PEC11 rotary encoder with push switch
2. Onboard seesaw microcontroller with I2C interface
3. STEMMA QT/Qwiic compatible for solderless connections
4. Breadboard-friendly with 0.1" breakout pads
5. Configurable interrupt pin for rotation/button detection
6. Built-in NeoPixel and status LEDs
7. Supports 3–5V power and logic
8. Address jumpers for up to 8 devices on one I2C bus
9. Compact 1" x 1" PCB with 45° encoder angle

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Package Includes:

1 x Adafruit I2C Stemma QT Rotary Encoder Breakout