We're wrapping up the design for the OPT4048 breakout: mostly putting the finishing touches on the Arduino library (https://github.com/adafruit/Adafruit_OPT4048). Since the whole point of this sensor is that it gives you CIE X amp; Y coordinates, we thought it would be cool to plot that onto a CIE diagram (https://en.wikipedia.org/wiki/CIE_1931_color_space).

Historically, we’d have to use Processing (https://processing.org/), but now you can use WebSerial to get data directly from a microcontroller!

Only catch — it’s been like 15 years since I wrote JavaScript, so we asked Claude Code (https://docs.anthropic.com/en/docs/claude-code/overview) to help out. With a little direction, it delivered a perfect demo (https://github.com/adafruit/Adafruit_OPT4048/commits/gh-pages) in about 30 minutes.

It was so fun, we’re thinking of doing WebSerial demos for more products! You can try it out by uploading the code here (https://github.com/adafruit/Adafruit_OPT4048/blob/main/examples/opt4048_webserial/opt4048_webserial.ino) and then visiting this page: https://adafruit.github.io/Adafruit_OPT4048/webserial/

#Arduino #WebSerial #ColorSensor

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