This impressive glass sign — with seemingly magical embedded white LEDs — stands nearly ten feet tall. Examine it very closely and you’ll see a network of fine lines. Many assume those are wires, but they’re actually insulators with the LEDs bridged across them. The glass is coated with indium tin oxide, a transparent conductor used in LCD screens, and these scratches isolate areas of different electrical potential. Power is delivered via wires concealed in the edge supports. The principle is exactly the same as the ITO-coated plastic and glass in the Adafruit shop, on a much grander scale.
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.
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