This project is to implement the E-Mount communication protocol on an Arduino compatible board. You will need to have a device that can opereate a UART at 750kBaud.
- Arduino Teensy 3.5
Can emulate a manual focus manual aperture lens well enough to convince a NEX7.
We have documented the protocol here.
You need to setup the Teensyduino add-ons for Arduino Studio. The project should then build in the Arduino Studio normally.
To interface with a camera you can construct a jig using a macro extension tube (use a 16mm one if possible as the wiring is difficult in a 10mm version). Meike brand is known to be workable.