PDA

View Full Version : [posted] Sony PCG-K25 Laptop Keyboard Controller with a Teensy ++2.0



thedalles77
11-06-2017, 02:56 AM
12001
Teensyduino Code, Eagle layout and PDF documentation at:
https://github.com/thedalles77/Pi_Teensy_Laptop
Features
Circuit board connects Teensy to 24 pin 1mm pitch FPC connector and breaks out all other I/O
Scans a KFRMBA151B Sony Vaio keyboard and sends keypresses over USB.
Communicates via PS/2 with the Sony Vaio touchpad and sends the data over USB
Replaces the control pad for a M.NT68676 video board
Receives commands over I2C to shut down power or reset the laptop

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.
The following picture shows the Teensy and other boards in the laptop.
11999
This is the finished laptop
12000

thedalles77
12-25-2017, 09:06 AM
12001
Teensyduino Code, Eagle layout and PDF documentation at:
https://github.com/thedalles77/Pi_Teensy_Laptop
Features
Circuit board connects Teensy to 24 pin 1mm pitch FPC connector and breaks out all other I/O
Scans a KFRMBA151B Sony Vaio keyboard and sends keypresses over USB.
Communicates via PS/2 with the Sony Vaio touchpad and sends the data over USB
Replaces the control pad for a M.NT68676 video board
Receives commands over I2C to shut down power or reset the laptop

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.
The following picture shows the Teensy and other boards in the laptop.
11999
This is the finished laptop
12000


**********Update - The laptop now has battery operation**************

The Teensy reads the battery voltage with its ADC and blinks the video card off for a second
if the battery voltage is getting low. Eventually the Teensy shuts down the laptop power latch
if the charger is not plugged in. I updated the PDF documentation and the code at my Github repo

Paul
02-12-2019, 11:56 PM
Update: this was posted to the website some time ago. Here's the link.

https://www.pjrc.com/sony-pcg-k25-laptop-keyboard-controller/