Forum Rule: Always post complete source code & details to reproduce any issue!
Results 1 to 2 of 2

Thread: Teensy 3.2 USB Keyboard Controller

  1. #1
    Junior Member
    Join Date
    Dec 2020
    Posts
    2

    Teensy 3.2 USB Keyboard Controller

    Hi everyone,

    I recently made a USB keyboard controller following the excellent guide by Frank Adams https://www.instructables.com/How-to...rd-Controller/ and it works great. I used a keyboard membrane from an old eeePC netbook.

    The keyboard works very well with a Windows PC (I tried three laptops) and have also got it working with the Raspberry Pi. It does take a few seconds to get recognised at first but is seamless after that.

    I then tried to use it with a Micromite computer (a wonderful retro feel computer, https://geoffg.net/maximite.html) but alas, the CMM2 does not recognise the USB Teensy keyboard. Seems to me something is missing during the USB handshake. A normal external USB keyboard works fine with the CMM2 but not the Teensy one. My question is, what is the difference in the USB initial protocol between a standard USB keyboard and a Teensy controlled one? Why is one recognised and the other not?

    Any suggestions/ideas as to what I can check/try to get it working please?

    I am using Arduino 1.8.13 IDE and Teensyduino 1.53. I compiled the keyboard as a HID Keyboard only.

    Thanks in advance
    Elia

  2. #2
    Junior Member
    Join Date
    Dec 2020
    Posts
    2
    Hello again,

    No suggestions or ideas anyone? I am really stuck with this and would greatly appreciate any assistance to get it working please

    Thanks,
    Elia

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •