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Simple modification of solo finger pen. This version can be printed as one single already assembled and working unit without need to use any hardware, screws etc. Just print, clean from support, put pen insert in and use!
Also there is a version that gives you some space for longer fingernail if you have one.
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.