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Thread: [queued] Sony PCG-K25 Laptop Keyboard Controller with a Teensy ++2.0

  1. #1
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    Nov 2017
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    [queued] Sony PCG-K25 Laptop Keyboard Controller with a Teensy ++2.0

    Click image for larger version. 

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ID:	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.
    Click image for larger version. 

Name:	Inside.jpg 
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    This is the finished laptop
    Click image for larger version. 

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Views:	134 
Size:	107.0 KB 
ID:	12000

  2. #2
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    Quote Originally Posted by thedalles77 View Post
    Click image for larger version. 

Name:	Board.jpg 
Views:	232 
Size:	187.3 KB 
ID:	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.
    Click image for larger version. 

Name:	Inside.jpg 
Views:	163 
Size:	191.7 KB 
ID:	11999
    This is the finished laptop
    Click image for larger version. 

Name:	Outside.jpg 
Views:	134 
Size:	107.0 KB 
ID:	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

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