Question about M5Stack Sim800L Module

[ken57093]

I'm now trying to use the sim800L Module (https://www.elektor.com/m5stack-sim800l-gsm-module).

I want to check whether the sim card can connect to network.

However, I cannot check whether the sim card have network function.

I had visit different website and use tinyGSM but still can't fix the problem. Can anyone give me some tips?

The websit I had read:
https://www.arduino.cc/en/Guide/ArduinoGSMShield
https://www.ayomaonline.com/programming/quickstart-sim800-sim800l-with-arduino/

[ken57093]

This post is deleted!

[Rop]

Have you read the datasheet for the modem?

[LastCaress]

I'm also trying to use this module, without success. It's one of the less documented ones :\

[ken57093]

@lastcaress @Rop
I don't know why after I upgrade the arduino from 1.8.5 to 1.8.7, and then I can get the result.

[LastCaress]

@ken57093 but what code are you using?

[ken57093]

@lastcaress

I'm using the example code from TinyGSM.h library.

[ken57093]

Hi

Now I'm trying the example code of GSM.h to set up a web server.
https://www.arduino.cc/en/Tutorial/GSMExamplesWebServer

It output a lot of error

Anyone knows what happened? thank you