Adafruit has a great project based on the TCS34725 color sensor and the VLSI VS1053B DSP codec chip called PianoGlove. It’s not exactly what I need for Bennett’s specific case, but the tutorial is great, the parts are easily attainable for prototyping and the code is open source.

My initial idea was to adjust the design and the code to make a low maintenance and easy-to-use note/color trainer Ben could use to start building a color memory. He’s an absolute Harry Potter nut, so I thought a Remember-It-All sphere would be like his own personal Remembrall.