Connect smartphone camera and tablet

[SteveJG]

This example possibly does part of what you hope to do

DIY smartphone robot using simple electronics (no arduino / micro controller)

Hello everyone! I am Michael and my passion is playing with simple electronics and mostly paper circuits. I'm posting here because I've invented a simple hack that turns a smartphone into a programmable DIY robot using just two transistors and two light sensors, no arduino or microcontroller required. The light sensors detect the brightness in one of the lower corners of the screen. These light sensors then turn the motors on and off by switching a transistor. This makes the building process m…