I was thinking about buying the “Raspberry Pi 3G/4G<E Base HAT” but I have no idea how and whether it would work in my country.
Q1. I see that it has a slot to insert a SIM card so can I just insert a SIM card, connect it to my Pi and then start using mobile data?
Q2. If yes, what frequencies does the hat use? I was unable to find any documentation about it anywhere so I have no idea if it will work in India.
Q3. I see in the description that I will be needing a " Quectel EC25 Mini PCle 4G/LTE Module". What exactly does this module do? Will I be requiring the module if I use the hat by only inserting the SIM card?
Q4. I want to use this in India where most places don’t have 4G / LTE and some places don’t even have 3G. So will it work on EDGE? I only want to send 10 integer values over the internet once every hour.
The documentation and information on Quectel clears up a lot of my doubts.
I am still confused about one part though.
The module is mandatory, so I will have to get the Quectel EC25-E to use in India.
But after I get the module, is the SIM card necessary?
And if yes, can I use any SIM card that works within India or are there limitation to where I can use it?