The AMG8833 Grid Eye sensor is provides an 8x8 thermal image and communicates over i2C to the Arcade board. This extension reads the matrix data and displays it on the screen (color picking could be greatly improved).
You can find the AMG833 in a breakout form (already soldered on a PCB with resistor and all that good stuff) at various vendors:
- Adafruit https://learn.adafruit.com/adafruit-amg8833-8x8-thermal-camera-sensor.
- Sparkfun https://www.sparkfun.com/products/14607
The driver code was ported from the Adafruit CircuitPlayground AMG8xx driver.