It’s subject to debate and delicate, but maybe you experienced this situation yourself while driving a car. The driver of another car, just behind you, would kindly like to travel at a higher speed. On your side however, you apparently yet travel at the maximum legal speed.
An hypothesis is the speedometers of both cars don’t agree. So why not showing in real time your actual traveling speed on the back of the car ?
Let’s make it looks like a Sonic the hedgehog power-up monitor !
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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