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Thread: T4.1 External USB C Connector

  1. #1
    Senior Member vjmuzik's Avatar
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    T4.1 External USB C Connector

    Here's a quick write up for a permanent and relatively simple way for anyone wanting to add an external USB connector to a Teensy 4.1 based PCB.

    First step is to make 2 solder balls on the D+ and D- pads
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    Next you want to similarly make 2 solder balls on the ends of 2 pins
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    Take those 2 pins and slide them in position on your PCB without soldering them
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    Now you can place your Teensy into position and solder it down
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    Then you have to carefully reach your soldering iron under the Teensy and heat the solder balls together while pushing up on the pins from the bottom
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    Once you have it soldered to the Teensy you can then solder it to the PCB and cut the pins to size

    I made use of this through hole USB 2.0 Type-C connector, but any other one would work fine. I've only tested uploading sketches and Serial communication, so as far as signal integrity goes I haven't had issues yet and my prototype board had some errors in it so I had to use a couple inches of hookup wire between the Teensy and the USB C connector which is definitely not ideal in any way.

  2. #2
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    Interesting idea and a nice Type-C connector. If you don't mind I'll steal this idea and try to make a small castellated adapter board to add a USB-C connector to the T4.1. Care to mention which one is D+ in your first picture?

  3. #3
    Senior Member vjmuzik's Avatar
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    As per the schematic D+ is on the ground side and D- is on the power side, I thought about designing a small board, but personally I probably won’t need it so I didn’t.

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