Time for part 4 of the tweet-a-watt (the project formally known as ‘wattcher’) design documentation! In this section, we play with the Google visualization widgets to save us lots of time. I will show you how to take data from the Google App Engine datastore, turn it into JSON and then make it visualization-happy for nice Flash graphs. The code is also fully available in a google code repository so hopefully people with better software skillz than I can submit patches and help out.
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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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.
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