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Topic: Does my SIM need a data plan to send AT commands? (Read 608 times) previous topic - next topic

Valten1992

Hello

As my topic title says, does a SIM card need a data plan in order to request performance metric such as RSSI and BER?  Or does it simply need to be unlocked to do this?

I am quite new to Arduino and aim to use a GSM/ GPRS shield to collect performance metrics. I also need to find a way to record this data.

I could do it manually by having SMS messages being sent to me at periods of time containing the data or is there perhaps a way to store the data using a CSV file? That method may not be feasible on an Arduino Uno.

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