Adafruit ANO Rotary Navigation Encoder to I2C Stemma QT Adapter

The ANO rotary encoder wheel offers a nostalgic nod to the classic clicking scroll wheel interface, revolutionizing user interaction with a modern twist. Despite a complex pin-out and numerous connections, this Stemma QT breakout simplifies the process, eliminating the hassle of soldering multiple pins.

The integrated microcontroller with seesaw firmware captures all pulses and pin activity, effortlessly saving incremental values for I2C querying. By using a Stemma QT cable, this device seamlessly connects to an extensive array of microcontrollers, from Arduino UNO to Raspberry Pi. Power it with 3 to 5V DC and manage data using 3 or 5V logic I2C with ease.

Example usage includes employing our Arduino library or CircuitPython/Python code for data control and reading, suitable for computers or single-board Linux systems. The breakout can easily attach to a breadboard with six breakout pads arranged 0.1" apart. Configure the INT pin to pulse low for efficient rotation detection without constant I2C port monitoring.

For those needing multiple connections, modify the I2C address via four solder jumpers, allowing up to 16 devices on a single bus. For additional expansion, employ a special address-change command stored in the onboard EEPROM memory.

This product features the fully assembled 'seesaw' PCB, ready for soldering the ANO encoder, which is sold separately. Note that this equipment is tailored for hand-rotated mechanical encoders and is not suitable for high-speed motor encoders.