This tutorial will show you how you can quickly make a DIY version of GPutty (Graphene Putty) which is a super pressure -sensitive polymer you can use as a robust sensor for a variety of projects and interfaces. This sensor is so multi-purpose and sensitive it could do things like monitor your breathing and pulse just by sitting on your neck. This is a knock-off version (I’ll call it “Goophene,” -get it?) of the “GPutty” idea made by Coleman et al at Trinity College (https://www.npr.org/sections/health-shots/2016/12/…)
This DIY type seems nearly as sensitive as the lab-made stuff these guys describe (i tried re-creating the examples they gave). I’ve already succeeded in hooking it up to a microcontroller and sensing:
light touches with a napkin
ultra light touches with .012″ monofilament
Typing on the table nearby
June-bugs walking around
ANGRY ants (but not calm ants- more on this later)
Inertial gestures (like sticking it on your finger an wagging it around)
So check out this how-to, and join me in playing with this new cool substance and figuring out fun new types of interfaces to make with it! I’m also a professor, and if anyone wants to write a paper with me to send to something like TEI (Tangible, Embedded and Embodied Interaction), Ubicomp, or CHI (Computer Human Interaction), types of places might be interested in fun new interactions we can design with this!
It can still be a bit quirky and unpredictable, but we are getting there! Maybe you will be able to help me improve this!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.