• Recent
  • Tags
  • Popular
  • Home
  • Docs
  • Register
  • Login
RetroPie forum home
  • Recent
  • Tags
  • Popular
  • Home
  • Docs
  • Register
  • Login
Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

Issue with Teensy LC & Raspberry Pi

Scheduled Pinned Locked Moved Help and Support
teensy lcteensyhandheldraspberrypi4
5 Posts 2 Posters 773 Views
Loading More Posts
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • C
    cpmender
    last edited by 26 Jul 2020, 00:35

    I am attempting to create my own handheld Retropie device. Retropie works fine with any controller on my Raspberry Pi 4 (4 GB). I am attempting to use a Teensy LC however, I have attempted using several different code repos. Including the example File>Teensy>UBS_Joystick>Complete code. They all work when I test on joy.cpl but when I connect the Teensy to the Raspberry Pi, RetroPie is stuck on the Press and Hold A button screen. Nothing will register.

    My Setup is:
    Board: Teensy LC
    USB Type: Serial + Keyboard + Mouse + Joystick
    Port: I have tried both Teensy Port & Serial Port

    I am stuck as to why this works in the joy.cpl test but nothing happens in RetroPie.

    I would appreciate any help.

    Thanks.

    1 Reply Last reply Reply Quote 0
    • M
      mitu Global Moderator
      last edited by 26 Jul 2020, 02:59

      Is your device recognized as a gamepad ? Run cat /proc/bus/input/devices and see if it's listed as a gamepad/joypad.

      C 1 Reply Last reply 26 Jul 2020, 03:26 Reply Quote 0
      • C
        cpmender @mitu
        last edited by 26 Jul 2020, 03:26

        @mitu said in Issue with Teensy LC & Raspberry Pi:

        cat /proc/bus/input/devices

        It does not appear so. I received an array of 3 items. However they all appear to be my Apple Extended USB Keyboard.

        How can I get the raspberry pi to recognize my teensy as a gamepad?

        1 Reply Last reply Reply Quote 0
        • M
          mitu Global Moderator
          last edited by mitu 26 Jul 2020, 03:29

          @cpmender said in Issue with Teensy LC & Raspberry Pi:

          How can I get the raspberry pi to recognize my teensy as a gamepad?

          Usually the device should advertise itself as a joystick input device or a driver would recognize it and configure it. Did you install any driver ?
          Post the output of the cat command here - run it with only the device plugged in.

          1 Reply Last reply Reply Quote 0
          • C
            cpmender
            last edited by 26 Jul 2020, 14:47

            Okay so I figured out what was going on. I had two micro-usb cords, one was connected to my RaspberryPi and one to my laptop. The issue was with my micro-usb to the RaspberryPi, it was powering the Teensy LC but not reading it.

            I switched the cords and it started working on the RaspberryPi.

            You can imagine how frustrated I was, given I am new to all this.

            Thanks for your help Mitu!

            1 Reply Last reply Reply Quote 0
            4 out of 5
            • First post
              4/5
              Last post

            Contributions to the project are always appreciated, so if you would like to support us with a donation you can do so here.

            Hosting provided by Mythic-Beasts. See the Hosting Information page for more information.

              This community forum collects and processes your personal information.
              consent.not_received