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Scientists create ultrapowerful, squishy robotic 'eye' that focuses automatically and doesn't need a power source

A squishy robotic "eye" can focus automatically in response to light, without any external power. The ultrapowerful robotic ...
Hackaday

Blinking An LED With A Single Transistor

Let’s say you want to blink an LED. You might grab an Arduino and run the Blink sketch, or you might lace up a few components ...