With a wlan stick, a battery pack, and Pure Data the Raspberry Pi becomes a swissarmy knife for MIDI and OSC.
In an ongoing project to make wearable non-standard musical controllers we found the vmeter which is a nicely sized touch strip with the one drawback that it is a usb device and as such wired. We looked into ways to make a wireless usb or MIDI connection or anything similar and found close to nothing that suited our needs (battery powered, small, flexible). After thinking about this for a while it occured to me that building our own system actually should take close to no hardware hacking and only a little software tinkering. So we decided to build our own. Basically a Raspberry Pi with a WLAN stick and a battery pack is all you need.
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.