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View Full Version : [queued] Teensy 3.2 Converts IBM Thinkpad 380ED Keyboard and Trackpoint to USB



thedalles77
05-24-2020, 03:29 AM
https://www.youtube.com/watch?v=WGSg1ky4UUs&feature=youtu.beThinkpad keyboards from the 1990's have a resistive strain gauge trackpoint that was converted by the original motherboard to mouse commands. This project uses instrumentation amplifiers that feed the A to D converter on a Teensy 3.2 in order to detect the 380's trackpoint movement. The keyboard key matrix is scanned by the Teensy in order to create a composite USB keyboard and mouse device. The project is documented on Hackaday.IO (https://hackaday.io/project/171439-ibm-thinkpad-380ed-keyboardtrackpoint-to-usb) and Github (https://github.com/thedalles77/USB_Laptop_Keyboard_Controller/tree/master/Example_Keyboards/IBM%20Thinkpad%20380ED).

thedalles77
09-19-2020, 06:08 AM
New link to the video
https://vimeo.com/458669376