Another basic bot (costs around 55$) required some soldering. It runs on a simple circuit powered by AAA batteries and 2 motors powered by a 9v battery. Basically the LED flashes continuously and when it encounters an object the light is reflected back to a photo transistor which immediately throws one motor into reverse and stops the other one for 3 seconds. this robot also falls into the category of mechanical illusion. Very fun i think, i like the colors.
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