I converted a Sony Vaio PCG-K25 to a Raspberry Pi 3 laptop with a Teensy ++2.0 as the controller for the keyboard, Touchpad, and Video Card.
I know this kind of project has been done lots of times but I thought I'd share it just in case it might help someone.
Features
• Eagle designed circuit board connects the Teensy to a 24 pin 1mm pitch FPC connector and breaks out all other I/O to header pins.
• Scans a KFRMBA151B Sony Vaio keyboard every 30msec and sends keypresses over USB.
• Polls the Sony Vaio touchpad over PS/2 and sends movement and button data over USB (can be disabled when using a mouse).
• Replaces the M.NT68676 video board key pad with the multimedia keys to control mute, volume, and brightness.
• Receives commands over I2C to shut down power, reset the laptop, or report firmware version & release date
The project description, Eagle files, and Teensyduino code are at my github repo:
https://github.com/thedalles77/Pi_Teensy_LaptopHere is a short YouTube video:
Cheers