Teensy 3.0 to Arduino R3 breakout board

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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 ?
 
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. :)
 
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!
board - 3.png

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
 
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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.
 
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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-30-to-dipbreadboard-board/
bare board with header: https://tindie.com/shops/joni/teensy-30-to-dipbreadboard-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.
 
looking good

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-30-to-dipbreadboard-board/
bare board with header: https://tindie.com/shops/joni/teensy-30-to-dipbreadboard-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
 
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...

IMG_0448.jpg
 
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.
 
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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.
 
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.
 
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.
 
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
 
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 ??
 
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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?
 
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.
 
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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