I’m still plugging away at RPi Oscilloscope benchmarking GPIO using Java Embedded in my spare time (stuck on getting NIO to work), but for now I need a break, so I’ll go back to another cool use of GPIO using Java SE Embedded and a Raspberry Pi. Here are all the parts I just got for about $30.
I bought everything from RadioShack (except for the RPi), so you can do the same at home….
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.