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I currently have a project that is working on an AtMega2560 platform (heavily derived off the Arduino Mega). It mainly involves a GPS module and SD card.

Going forward I am looking to add a few more sensors (IMU etc.). I would like to a more powerful microcontroller -- for the high rate logging I need and also it seems best from a future scalability perspective.

I would like to start with using one of the ARM based uC platforms available out there, transition my software to it using a breadboard setup, and then eventually make a custom board.

So my QUESTION is: Which would be an easier option from a migration/transition and community support point of view --- Teensy or Due? I currently use the SDFat and Adafruit GPS libraries, the SDFat being a major concern for migration.

Any other considerations/suggestions/advice will be appreciated.

Thank you.

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If compatability is what you are after I would say go for the Due. If good products are what you are after, go for the Teeensy. The Due, being a real Arduino, will have the best software support and forum community and thus the best chance of getting existing libraries to work with it. The Teensy, because the project really centers around one guy's brilliance, is highly dependant on that one person's time, and while he has done a stirling job with the Teeensy core, he is still only one guy and can only do so much. So it may be harder to get third party libraries working on it.

That said, the Due is not a nice board. The SAM3X chips are awful. Any chip that needs an erase button attached to it to get around the "possibility it won't be able to enter the bootloader" (which incidentally is hard coded in ROM and can NEVER be replaced or upgraded) is destined for the scrap heap IMHO.

There are of course other options as well. There are about a million and one ARM based Arduino-like boards out there with varying amounts of support, either from the chip manufacturer (such as the ST boards), or third party builders. Then of course there are other architectures that are in my biased opinion much better than the ARM ones - chips such as the MIPS based PIC32, used in the chipKIT family of boards. Those latter though don't yet have a port of the SdFat library yet, although it is something that is being actively worked on. There are even Sparc based boards out there that are worth a look.

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  • Thanks Majenko. I do care about compatibility but a better long term solution is a higher priority (also because it will be a learning vehicle for me working on arm uCs). So based on your answer I am leaning towards using the Teensy. Interested in seeing other replies as well (basically if someone has suggestions on boards at par with Teensy in terms of a good board but perhaps with better community support) – O.K. Dec 6 '15 at 14:00
  • Personally i do all my work with pic32 or pic18 because i know those chips intimately, so i am somewhay biased towards those. Maybe you should have a dabble with the chipkit boards to see what you think. There are a number of inexpensive options, like the Fubarino Mini, that could let you experience them without breaking the bank... – Majenko Dec 6 '15 at 14:34

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