Need some advice for a GSM module

Hardware Arduino GSM Shield
1

Hi all,

I'm struggling with something I succeed (but forgot) several years ago.
I got a datalogger (arduino Uno based) on which I would like to create a GSM/GPRS connection for the following tasks:

  • synchronize an RTC module with the clock of the network
  • send alerte through sms
  • send data on request by sms

So far I got :

Both are not working ... despite the right power supply. Something is quite strange to me. I remember few years ago I could specify a PIN NUMBER (of the SIM CARD), using function such as gsm.begin (PINNUMBER), sms.begin() ...

I could not find such tutorials anymore. Am I too old nor they don't exist anymore? 10 years ago, doing such thing took me maybe 1 hour, now I'm lost in space just to find a proper GSM shield I could supply with the Arduino and a basic GSM library that used the PIN NUMBer ( I do not have a device to change the PIN number of the SIM card).

One or two direction to look at would be perfect for me.

Cheers

Mathieu

2

The FONA SIM 808 was designed for the 2G network, which is obsolete and has already been shut down in many places. Does 2G still function in your area?

The SIM900 is supposed to work with 2G and 3G, but 3G is also obsolete. You will need a new GSM module designed for 4G. This tutorial might be helpful.

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