I'm looking for a gateway to pass from a 6LoWPAN over 802.15.4 network to 3G. Are there any on the market, or do I have to build one for myself based on Arduino or Raspberry Pi?

  • 2
    Can you elaborate a bit on the use case you're trying to build? – Helmar Feb 13 '17 at 17:23
  • What hardware do you currently have in your network (particularly your edge router)? – Aurora0001 Feb 13 '17 at 17:26
  • Right now I have a couple of sensortag and as edge router a weptech gateway connected to my laptop by SLIP. This Gateway will not be near any computer so I have to change SLIP for a wireless (very long range) protocol. I though 3G would a good option. – JuanMa Feb 14 '17 at 18:04

I think you will find modules without too much trouble, there have been chips around for over a year that I found (and there is a module on Kickstarter which looks like a simple small production run sales testing exercise).

A 6LoWPAN to 3G gateway is probably a bit of an esoteric use case - any you can find will be built-in to an end product, so it might be cheaper to assemble a unit from modules (or re-purpose an old phone maybe depending on the scenario).

Just to elaborate on the 'how' part, it seems to be common now for these radio interfaces to be integrated with a reasonably powerful MCU which handles the communication stack. Not just the link-layer, but some of the security aspects of the protocol too. So this would easily be able to interface to a GSM module through a UART, without needing a further processing device. Building the radio stand-alone would actually be harder than having it tightly integrated with a control processor. You should also be wary of trying to use the asic directly on your own board - using a module removes the challenge of RF layout and type approval.

| improve this answer | |
  • Thank you for the answer. I think I will follow your advice trying to build it with a pair of modules for Arduino or RaspBerry. However due to the wide options of gateway on the market I found strange not to have one with this two protocols which costs does not exceed too much. – JuanMa Feb 14 '17 at 18:00

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.