New A13-SOM-LTE design on GitHub



What you see on the picture above is A13-SOM-LTE shield which enables 100 Mbit 4G Internet access to A13-SOM.

The LTE shield is specially designed for 4G module from partner we work with. This is the first prototype and some tests should be completed but it’s matter of weeks or months these modules to be released. We still have no price on the 4G module as these are very new but we are assured to have them on the very low cost, so with A13-SOM to enable wearable cloud technology.

100Mbit is enough to listen music, watch videos, log large amounts of data to cloud storage.


A13-SOM-LTE shield is OSHW, the schematic and CAD files are on GitHub.


16 Comments (+add yours?)

  1. David Whittaker
    Jun 26, 2014 @ 01:59:20

    Can this work on the 700/1700 mhz US frequencies, or only european frequencies?


  2. Martin Nisted
    Jun 26, 2014 @ 11:43:45

    Looks nice.

    Will this shield be compatible with other NGFF / M.2 modules?

    ex. the MU736 HSPDA+ module from HUAWEI.

    Or does it need another antenna design, power design etc.?


  3. Munub
    Jun 26, 2014 @ 19:05:29

    What connector does the green module use? Will this be pluggable into A13-SOM-LTE or soldered on it?

    A combined Bluetooth-GSM shield for A13-SOM would be nice. LTE is not so useful at the moment, because LTE providers here include only a tiny amount of high-speed traffic in their plans, after which speed will be limited to GPRS speed (unless you pay exorbitant prices for more LTE traffic). And LTE plans still cost significant amounts of money. GPRS plans on the other hand can be found for very small monthly rates.


    • OLIMEX Ltd
      Jun 26, 2014 @ 19:11:11

      it uses M.2 connector and it’s pluggable
      LTE prices will fall with more and more operators to offer these it’s normal


      • Fridolphana
        Jun 26, 2014 @ 20:57:00

        LTE prices may fall, but won’t this module still be more expensive than OLIMEXINO-NANO-GSM shield? I think, more expensive modules with newer technology would be more useful for more expensive boards with newer chips like A20. Inexpensive small-formfactor boards like A13-SOM would profit from the availability of inexpensive shields. Such combinations could be placed in many locations with less value for thieves.

        Since you wrote you are working with a partner on this module, have you thought about an SDIO module in SD card form factor like the one from http/, since it is smaller and so its production might be cheaper? For better signal reception, it might be better to have a matching shield with a larger printed antenna on it than would fit on the SD card sized area though.

        Also, as an unrelated general idea for making cheap boards, I found Cypress’ approach to make a printed USB connector part of a board that can even be broken off from another part of the board, so that both can even be used separately, very interesting. Maybe you could some similar design in some future MCU product:

      • Fridolphana
        Jun 26, 2014 @ 20:59:58

        Oh, broken link in my previous post. Correct link for your clicking pleasure:

  4. nil
    Jun 28, 2014 @ 17:07:07

    Not sure it’d pass the return-on-investment test, but it would be neat if the M.2 PCM lines were broken out. Even if the current module doesn’t use them, swap in one that does, and DIY cellphone…
    (a similar thought crossed my mind when I saw the NANO-GSM shield, since the SIM800H does provide digital voice pins)


  5. Tyler
    Jul 06, 2014 @ 10:36:03

    Will this be compatible with the WIFI shield? As in, will I be able to use both at the same time?


  6. Elmar
    Jul 15, 2014 @ 19:58:48

    What command language will this use? AT (Hayes command set), QMI (Qualcomm Mobile Station Modems Interface), something else? Since you say, you’re working with the manufacturer, you should convince him not to use some undocumented proprietary protocol. Please provide full documentation together with the module.


  7. Jeff
    Jul 21, 2014 @ 19:36:42

    I also want to know if there’s a solution to have WiFi at the same time? Could make a nice mobile hotspot!!


  8. Sirius
    Nov 16, 2014 @ 21:03:08

    what is the difference between using this module and using a LTE USB modem?


    • Nate
      Jan 30, 2015 @ 01:39:14

      The USB Modem is a standalone device that can be used with any device with a USB port and the proper drivers. This is a companion board specifically designed for the A13-SOM system on module. When combined it creates a very small, very low power computer with LTE capability and LIPO battery connector. The use of this combination is to create portable LTE devices.


  9. Sirius
    Sep 21, 2015 @ 06:14:53

    When this board will be available?


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