Redesign a simple smartphone sensor accessory that will be powered by the smartphone and controlled by a smartphone app (which also needs to be designed).
The PCB's main functions are to convert analog signals from a 3 pin 3V sensor to digital and relay them to the smartphone app; and convert/run 9V back from the phone to power the sensor. The sens...
Skills: 3d modelling, autocad, circuit design, electrical engineering, industrial design
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