Tyler Worman over at MAKE wrote up this great tutorial on building a three-switch effects looper for the BeagleBone Black.
Many artists will use looping stations to slowly build up an entire song in real-time as they play, recording one track at a time. There are plenty of great examples of this on YouTube. This project will show you how to use a BeagleBone Black, sound card, Python, and Pure Data to build an audio looping station for use with instruments. This looping station will allow you to build a loop, alter tempo, and adjust the loop as it plays. You’ll also lay the groundwork for building very complex synthesizers and effects pedals using the BeagleBone and Pure Data.
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.