Forum Rule: Always post complete source code & details to reproduce any issue!
Results 1 to 14 of 14

Thread: In need of complete Teensy 4.1 dimensions

  1. #1
    Junior Member
    Join Date
    Dec 2018
    Posts
    17

    In need of complete Teensy 4.1 dimensions

    Hello,

    I'm making a circuit board that a Teensy 4.1 will plug into. I have all of the dimensions I need except for the USB and ethernet pins. Does anyone have this info?

    Click image for larger version. 

Name:	teensy.jpg 
Views:	54 
Size:	127.9 KB 
ID:	20065

  2. #2
    Senior Member
    Join Date
    Jun 2013
    Location
    Torrance CA
    Posts
    415
    USB (5 pins in a row) spacing is 0.1 inch pitch

    Ethernet (2 rows of 3) spacing is 2mm pitch

  3. #3
    Senior Member blackketter's Avatar
    Join Date
    May 2015
    Location
    San Francisco
    Posts
    343
    If you are using KiCad, I made a footprint, which has been merged here: https://github.com/XenGi/teensy.pretty

    Symbol here: https://github.com/XenGi/teensy.pretty


    These have not been fabricated yet, afaik, so if you discover any issues, please let us know.

  4. #4
    Senior Member+ MichaelMeissner's Avatar
    Join Date
    Nov 2012
    Location
    Ayer Massachussetts
    Posts
    4,086
    Quote Originally Posted by potatotron View Post
    USB (5 pins in a row) spacing is 0.1 inch pitch

    Ethernet (2 rows of 3) spacing is 2mm pitch
    But note, like the Teensy 3.6, the USB host pins are 0.1" pitch, but those holes are not aligned with the other 0.1" holes.

  5. #5
    Junior Member
    Join Date
    Dec 2018
    Posts
    17
    Quote Originally Posted by potatotron View Post
    USB (5 pins in a row) spacing is 0.1 inch pitch

    Ethernet (2 rows of 3) spacing is 2mm pitch
    Do you know the horizontal+vertical distance these are in reference to anything else on the board?

  6. #6
    Junior Member
    Join Date
    Dec 2018
    Posts
    17
    Quote Originally Posted by blackketter View Post
    If you are using KiCad, I made a footprint, which has been merged here: https://github.com/XenGi/teensy.pretty

    Symbol here: https://github.com/XenGi/teensy.pretty


    These have not been fabricated yet, afaik, so if you discover any issues, please let us know.
    Thanks -- that would be super useful but I'm using Diptrace.

  7. #7
    Junior Member
    Join Date
    Dec 2018
    Posts
    17
    Click image for larger version. 

Name:	teensy2.jpg 
Views:	128 
Size:	176.5 KB 
ID:	20066

    This better illustrates the problem. The bottom USB header isn't vertically aligned with anything...no idea how far up I need to move it. Also not completely sure about the Ethernet connector. I could probably just eyeball it or determine the dimensions using MS paint and drawing more lines, but I'd rather get the exact dimensions.

  8. #8
    Senior Member+ KurtE's Avatar
    Join Date
    Jan 2014
    Posts
    9,406
    I use Diptrace as well. I do have my own versions of it that I have used for some of my own boards, which I am playing with.

    Most of the stuff you can grab from T3.6 as far as the USB connections.
    Currently on my boards I do not have the ethernet connections setup on it... Nor exactly where the two memory chips are, although I have guessed by trying to measure and did a quick and dirty castellated board which is being fabricated by OSHPark. So don't know how bad they are yet.

    I included a set of diptrace library components with some Teensy stuff. Not saying they are worth much but you might get some stuff out of them...

    Click image for larger version. 

Name:	t41_cast_pins.jpg 
Views:	52 
Size:	21.0 KB 
ID:	20068

    Note I am showing my sort of 3d for T3.6 here, so there are some holes for pins that are not on T4.1... But this board was setup such that I can use T3.6, T4, T4.1 with FRDM4236 which is currently in it and T4.1 which I will be... I keep the beta 1 in reserve as I am testing using some servos, so would rather kill a T4 than the T4.1...

    Click image for larger version. 

Name:	T4LSSV2.jpg 
Views:	47 
Size:	165.6 KB 
ID:	20069
    Attached Files Attached Files

  9. #9
    Senior Member blackketter's Avatar
    Join Date
    May 2015
    Location
    San Francisco
    Posts
    343
    Quote Originally Posted by Zane470 View Post
    Click image for larger version. 

Name:	teensy2.jpg 
Views:	128 
Size:	176.5 KB 
ID:	20066

    This better illustrates the problem. The bottom USB header isn't vertically aligned with anything...no idea how far up I need to move it. Also not completely sure about the Ethernet connector. I could probably just eyeball it or determine the dimensions using MS paint and drawing more lines, but I'd rather get the exact dimensions.
    I measured the 2mm spacing ethernet header to be centered between pins 20 and 21, and the centers of the closest pair of ethernet pins 0.1" below those two pins.

    The USB Host pins appear to be in a row placed 3mm above the teensy pins 1-6. They are also offset by 0.05" (halfway) from those pins in the long direction.

    Does that make sense? I can draw a picture if it's unclear.

  10. #10
    Senior Member+ KurtE's Avatar
    Join Date
    Jan 2014
    Posts
    9,406
    Again USB Host I believe it is the same as T3.6

    Which on my patterns, the +5v pin is at Click image for larger version. 

Name:	screenshot.jpg 
Views:	57 
Size:	19.4 KB 
ID:	20070
    at about x=.3 and y=.175 from the corner as hopefully shown

    Please pardon this funky version. It also has the T4 USB pads as was trying to build board that allows me to populate it to use T4 with USB with pogo pins, plus USB power chip...
    Or use for T3.6 or T4.1 using the 5 pin USB conneciton

  11. #11
    Junior Member
    Join Date
    Dec 2018
    Posts
    17
    Thanks blackketter and Kurt, that was the info I needed!

  12. #12
    Senior Member
    Join Date
    Jun 2017
    Posts
    140
    I am assuming like this?

    Click image for larger version. 

Name:	Ethernet.jpg 
Views:	11 
Size:	123.3 KB 
ID:	24930

  13. #13
    Senior Member blackketter's Avatar
    Join Date
    May 2015
    Location
    San Francisco
    Posts
    343

  14. #14
    Senior Member
    Join Date
    Jun 2017
    Posts
    140
    Thank you very much. I appreciate it.

Posting Permissions

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