An AAT angle sensor evaluation kit connected to a NeoPixel LED array via an ATtiny85.
Specifically, we used an AAT003 angle sensor, a NeoPixel 60-LED circular array, and an ATtiny85. Sensor "SIN" output to PB3; "COS" to PB4; output to NeoPixel Array on PB2.
A simple calibration routine maximizes accuracy.
The code is compatible with an Arduino Trinket: select "AdaFruit Trinket (ATtiny85 @ 8 MHz)."
A live video, including schematics, is available at: https://www.nve.com/Videos/video-page.php?video=AAT-NeoPixel&title=AAT%20Angle%20Sensor%20Driving%20a%20Circular%20LED%20Array