Hello ! I am actually testing the GSM SIM900 module as part of my internship project. Here is the tutorial I followed: https://lastminuteengineers.com/sim900-gsm-shield-arduino-tutorial/ To help me, my internship supervisor sent me the same module, and I also bought a Things.mobile SIM card whi…

Sending SMS Problem: Arduino GSM SIM900

system Closed January 14, 2022, 2:15pm 2

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