This week, I took delivery of a scroll-wheel and shutter-button assembly for the T-90. The idea is to learn how to interface with the controls, and use them to drive the menu system on the Arduino.
This really is central to the project, as interfacing with the native control systems, sensors and actuators will be essential to replacing the “brain” of the camera.
Some more images of the module:
images from “jcfn” on eBay.
The T90 Project 