So, I pulled off my Piano Stairs hack this past weekend using parts from Adafruit! Specifically, a Raspberry Pi, an Arduino Uno, and a bunch of photoresistors. I used flashlights on each stair, across from the photoresistors, in order to up the contrast and make it way more robust. (Without flashlights, you get effects like people casting shadows on stairs they’re not actually standing on, etc.)
Now, that was for a hackathon, but I think I have an opportunity to install this semi-permanently (well, maybe a few days or a few weeks) elsewhere on campus. However, the problem with flashlights is that the batteries only last a few hours, and I’d like to just be able to plug something in.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.