NeoSlider I2C QT Slide Potentiometer with 4 NeoPixels - STEMMA QT / Qwiic
£9.16 ex VAT
This I2C-friendly user interface element makes it plug-n-play-easy to add a 75mm long slide potentiometer to any microcontroller or microcomputer with an I2C port.
Each breakout is 3" long and 0.8" wide, with a single linear slide pot in the centre. Underneath, there are four under-lighting NeoPixels that can display any RGB colour. In the middle, a small microcontroller takes I2C commands and converts them to analogue reads (of the potentiometer) and NeoPixel control.
Thanks to the Stemma QT / Qwiic connectors underneath, you can easily connect using QT cables - no soldering required! There are even four I2C selection jumpers that you can cut to change the address from the default 0x30 to any value up to 0x3F so up to 16 slide pots can all share one chained cable.
To get you going fast, Adafruit has spun up a custom-made PCB with the seesaw chip and all supporting circuitry for 3 or 5V power and logic. The STEMMA QT connectors on either side are compatible with the SparkFun Qwiic I2C connectors. This allows you to make solderless connections between your development board and the rotary encoder or to chain them with a wide range of other sensors and accessories using a compatible cable. You can use the Arduino library to control and read data with any compatible microcontroller. They also have CircuitPython/Python code for use with computers or single-board Linux boards.