Hello, Which LTE CAT-M chip and LTE chip would you recommend according to their prices and Linux driver availability? Please skip China wireless chips like Quectel, etc, since they are not cheap and will not be accepted as infrastructure in EU and USA.

LTE CAT-M chip and LTE chip recommendation

HKPhysicist over 1 year ago

Hello,

Which LTE CAT-M chip and LTE chip would you recommend according to their prices and Linux driver availability?
Please skip China wireless chips like Quectel, etc, since they are not cheap and will not be accepted as infrastructure in EU and USA.

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Gough Lui over 1 year ago +1

Sequans Monarch 2 is pretty popular as a module. Nordic nRF91 is also quite popular as an integrated solution. - Gough
shabaz over 1 year ago in reply to HKPhysicist +1

You mean a gateway... a border router is something completely different. I'm only mentioning it in case you've not been searching using the correct search term and not realized, ready-made gateways exist…

0 shabaz over 1 year ago in reply to HKPhysicist

You mean a gateway... a border router is something completely different.

I'm only mentioning it in case you've not been searching using the correct search term and not realized, ready-made gateways exist which are secure, some are ruggedized, and it's pretty unlikely you'll be able to assemble some Linux box, with your LTE chip, write and test your secure code, for less; they don't cost much ready-made.
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0 HKPhysicist over 1 year ago in reply to shabaz

I see.

So I have to search an internet gateway rather than assemble my own gateway.
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0 shabaz over 1 year ago in reply to HKPhysicist

No. Maybe you wish to re-read what I wrote?

But, now you choose to interpret it in that manner rather than simply thanking someone for pointing you toward the correct term so that you don't waste your effort googling for the wrong information: Since you didn't know the correct terminology, will you be able to develop it? Do you know what goes on inside a gateway in terms of software functionality?
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0 HKPhysicist over 1 year ago in reply to shabaz

I can build an internet gateway with a Wi-SUN FAN server on a Raspberry Pi 4. There are also Quectel chips which work on RPi 4. I do not like this combination. They are not tough and not secure.

Other ready-made internet gateways cannot be customised.

Could you recommend any industrial grade programmable internet gateway with LTE-M?
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0 Gough Lui over 1 year ago in reply to HKPhysicist

I wouldn't call this industrial, but I've been using Mikrotik KNOT series products for Ethernet-to-LTE-M connectivity and they seem to work fine.

- Gough
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0 embeddedguy over 1 year ago

While designing a product rather than looking at which company provides a chip you should also look in this case what the CHIP offers.
As connectivity is not something that is everywhere supported. For example, in your region LTE-M is not supported you can go for chips that supports NB-IoT instead.

If these two are not supported, you may go for GSM or similar support. For me it was hard to get the SIM card with connectivity I wanted to have and wasted a lot of my time.
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