Hackaday Prize Entry: Ears On The Back Of Your Head - Hackaday

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Hackaday Prize Entry: Ears On The Back Of Your Head Hackaday The device itself consists of an off-the-shelf ultrasonic sensor, an Arduino, and a digital potentiometer. It all fits in a custom 3D printed enclosure and runs of two rechargeable coin cells. A simple bit of code scales the volume to the current ...