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Thread: Teensy 3.0 to Arduino R3 breakout board

  1. #1
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    Teensy 3.0 to Arduino R3 breakout board

    Go to this post for more information

    http://forum.pjrc.com/threads/243-Te...ll=1#post30418






    I have a few Teensy 3.0 to Arduino R3 breakout boards. I want to give these away for free (pcb only, without headers). But you have to pay the shipping costs.

    Shipping: Europe: 2EUR, rest of the world 3USD

    http://flic.kr/p/dp9vKJ
    Last edited by HWGuy; 04-25-2013 at 09:55 PM.

  2. #2
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    looks nice, I sent you a pm :-)

  3. #3
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    I also sent you a PM. It looks really useful.
    SteveC

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    Thanks, I sent PM too!

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    This looks great! Sorry if I missed an earlier post, but would you mind posting the gerber file so I can have some made locally and don't have to wait for the next batch to become available ?

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    the gerber files are available here: https://github.com/thewknd/Teensy3.0ToArduinoR3

    please note: in this version, the spi/avr isp header is rotated 180 degrees from the one on Arduino.
    Last edited by HWGuy; 11-17-2012 at 08:48 PM.

  7. #7
    I see you're sold out. I tried to upload your Gerbers to OSHPark.com, and it failed. Any chance you'll be sharing the shematic/board files? I'd like to make a couple changes anyways. If not, that's cool. I was considering making this exact adapter board anyways. It's a good idea.

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    I uploaded the eagle files to the github repository.

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    so, next batch of this board is available.

    There are some improvements and a significant design error. One Arduino R3 header is shifted a little bit (2.54mm). Do not connect an Arduino shield without modification. The Teensy 3.0 board could get destroyed!
    Click image for larger version. 

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    Send a pm if you want one (pcb only, without header/teensy 3.0). At the moment are 0 boards available.
    shipping: europe: 3 EUR, rest of the world: 5 USD
    The board itself is free
    paypal only

    features:
    • All Teensy 3.0 pins accessible
    • I2C pullup resistors
    • dcdc converter (78xx pinout)
    • Battery holder for the RTC bat
    • Reset/Program Button


    board: http://tinytiger.ch/board - 1.png
    schematic: http://tinytiger.ch/board - 2.pdf

    images:

    http://www.flickr.com/photos/45794040@N06/8288629316/
    http://www.flickr.com/photos/45794040@N06/8288589962/
    http://www.flickr.com/photos/45794040@N06/8287533569/
    http://www.flickr.com/photos/45794040@N06/8288590618/

    github repo with eagle files: https://github.com/thewknd/Teensy3.0ToArduinoR3/tree/V2
    Last edited by HWGuy; 01-30-2013 at 10:54 AM.

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    Hi,

    Are you still working on this. Seems to me to be a useful project.

    Bruce

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    Sorry if this was mentioned in another thread and I missed it, but what is the name of the small connector for the solder pads under the Teensy 3.0? It is shown in this photo. Also, does this need hot air to solder it or will an iron do? I assume its easier on a bare board rather thaan one with pins already on it.
    Last edited by Nantonos; 03-26-2013 at 10:36 AM.

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    from time to time i'm working on it. At the moment it looks like http://www.flickr.com/photos/45794040@N06/8538098153/

    You can buy the Teensy 3.0 to DIP breakout on tindie.com
    bare board: https://tindie.com/shops/joni/teensy...adboard-board/
    bare board with header: https://tindie.com/shops/joni/teensy...ard-board-kit/


    for the connector, ask google for "smd male header"

    i use CMS2A-14-5.8/3.3-G from antelec
    http://www.antelec.fr/en/product.php?id=289&t=0

    You can solder it with your soldering iron. And yes, it's A LOT easier on bare board.

  13. #13

    looking good

    Quote Originally Posted by HWGuy View Post
    from time to time i'm working on it. At the moment it looks like http://www.flickr.com/photos/45794040@N06/8538098153/

    You can buy the Teensy 3.0 to DIP breakout on tindie.com
    bare board: https://tindie.com/shops/joni/teensy...adboard-board/
    bare board with header: https://tindie.com/shops/joni/teensy...ard-board-kit/


    for the connector, ask google for "smd male header"

    i use CMS2A-14-5.8/3.3-G from antelec
    http://www.antelec.fr/en/product.php?id=289&t=0

    You can solder it with your soldering iron. And yes, it's A LOT easier on bare board.
    Hi,
    I have one of your breakout boards from tindie - I've not used it yet (not enough hours in the day!) but it looks great
    It would be nice to see your Arduino shield adapter completed.

    I teach introductory embedded systems to undergraduate students. I switched to Arduino a couple of years ago because the commercial IDEs had become so complex that it was difficult to teach concepts rather than driving the IDE.

    I find the Arduino slightly limiting in it's versatility. I love the Teensy concept but I want everything! I want the freedom of a 'bare' device & the flexibility of drop-in Arduino shields. I want a system that can be used for a whole semester without plugging & unplugging shields with destructive regularity.

    I like what you are doing.

    Ian

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    Quote Originally Posted by ian View Post
    Hi,
    I have one of your breakout boards from tindie - I've not used it yet (not enough hours in the day!) but it looks great
    It would be nice to see your Arduino shield adapter completed.
    I too have your breakout boards, 2 of them in fact, and am delighted with them. There is a learning curve for building them and I wished I had a good tutorial with advice. But I figured it out after planning a lot. My advice to anyone building these for the first time:

    1) First, solder the two short headers on the bottom of the teensy 3. For each short header, solder just one pin on the end, check alignment, re-melt if necessary. Try to get the alignment perfect by eyeball and feel (don't touch the pin you are soldering) then solder the pin on the opposite end. You don't have to solder all the pins right now, just the two outside ones are enough.

    On my second build, I placed these short headers upside down so that they protrude above the teensy 3 just about the right amount so that I can attach female jumper wires.

    2) Solder the "bent" header to the bottom of the teensy 3. To do this, assemble the breakout, bent headers, 1 40 pin header, and the teensy 3 without soldering yet to get the bent headers aligned as best you can. You are going to solder the two outside pins on one side of the bent header. One side will be easier than the other side, so pick the easy side to solder first. Put the 40 pin header in place on the opposite side. This leaves a gap between the breakout board and the teensy 3 just large enough to tack solder two pins without harming anything else. Once you have the two pins tack soldered, you can carefully disassemble the whole thing and finish soldering the remaining bent header pins.

    On my second build, after soldering the bent header pins, I removed the plastic spacer. This allows the teensy 3 to ride a little lower on the breakout board.

    3) Finally, on my second build, I used extra long 40 pin headers. This made them rise up about the same height as the two upside down short headers.

    Both of these are for easy prototyping and learning, so that's why I have every pin easily jumper-ed or probed.

    That's what I learned. Thought I'd share. Here's a picture of my second build...

    Click image for larger version. 

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  15. #15
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    small update.

    got new boards.

    Features:
    • All Teensy 3.0 pins accessible
    • Arduino R3 compatible shield layout
    • Series resistors on all Arduino R3 pins (digital and analog)
    • I2C pullup resistors
    • Dcdc converter (78xx pinout)
    • Battery holder for the RTC bat
    • Reset button
    • Program button
    • XBee socket (with 3 status leds)
    • Micro sd card socket




    Top



    Bottom


    Teensy and Xbee mounted



    Maybe i have to increase to board size a little bit. At the moment, there is not enough space for the power connector, the Teensy (with the breakout board) and the XBee.
    Last edited by HWGuy; 04-05-2013 at 07:32 PM.

  16. #16
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    Nice, though I do wonder whether having a board that allows attachment of Arduino shields will lead to problems if you put older Arduino boards that did not know about the IOREF pin, and the board didn't deal with 3.3v vs. 5v.

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    it's the same with the Arduino Due, you have to check the schematic first. And also do not forget the lower source/sink currents.

  18. #18
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    Quote Originally Posted by HWGuy View Post
    it's the same with the Arduino Due, you have to check the schematic first. And also do not forget the lower source/sink currents.
    Yep, I just wonder how many Due users have either had boards that aren't sensitive to IOREF and the board really needs 5v to work correctly, or perhaps they fried the Due with 5v from the board.

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    If you want to use the dip/breadbaord adapter in your eagle project, I have an eagle library for you : direct download link: download as zip (Repository: https://bitbucket.org/thewknd/tlib/overview) (And I've added other teensy 3.0 footprints)
    Last edited by HWGuy; 05-01-2013 at 05:43 PM.

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    in addition to the last board, the new layout contains two dc/dc converter and one li-ion/poly charger (MCP73871). And there are other smaller changes, like larger power supply lanes (now 30mil)

    One can change the order of the two dc/dc converter and the charger with jumpers on the board.

    some examples:



    top


    bottom

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    Nice update!

    Board looks very feature complete, but still one question: Any chance of adding a separate RF24 connector or adding 2 pins to the existing SPI header to make it a multi-purpose (SPI/RF24) header ??
    Last edited by Mars; 05-24-2013 at 12:48 PM.

  22. #22
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    Just to be sure, the new board design isn't available yet in tindie? In looking at your store there, it looks like it has the previous version that would seem to need a Teensy 3.0 to breadboard adapter to get access to the extra pins, while the board above seems to have incorporated the extra pin support into the pcb. Any ideas when it would be available? Also, I bought my Teensy 3.0's with the pins soldered in, would I need to either desolder the pins or buy another Teensy to use this board?

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    There is no plan to add this board revision to the tindie store. I'm still fighting a little bit with the charger. Don't like the package. I discovered nice charger chips on some adafruit/sparkfun breakout boards. Maybe i do have to switch to another type of charger ic. (PM me if you are still interested)
    The older revision offers its full features only with the Teensy 3.0 to breadboard adapter. Without that, the pins on the bottom side of the Teensy board are not accessible. And you have to connect the 5 Pins (BAT,VCC,GND,PROG,RESET) on the side manually with wires.

    You don't have to buy a new Teensy board. The 2x7 Pin SMT header is not that easy to solder with the other pin header already soldered in, but it's possible.


    On the next revision, a separate RF24 connector is placed on the board.

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    Quote Originally Posted by HWGuy View Post
    On the next revision, a separate RF24 connector is placed on the board.
    Nice, thank you! It enables me to add a Teensy into the rest of the network!

  25. #25
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    Quote Originally Posted by HWGuy View Post
    There is no plan to add this board revision to the tindie store. I'm still fighting a little bit with the charger. Don't like the package. I discovered nice charger chips on some adafruit/sparkfun breakout boards. Maybe i do have to switch to another type of charger ic. (PM me if you are still interested)
    Ok, I'll probably wait for the next spin of the boards. I was particularly interested in the voltage conversion options that were not part of the previous design.

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