- We are using the ASCII character '/n', aka "New Line", aka "Line Feed" to signal end of transmitted message. - Data is sent via Serial.print() INSTEAD of Serial.write(), as we did in the previous ...
extern const String SECRET_PINNUMBER = ""; // unless PIN is deactivated, specify your SIM card PIN number extern const String SECRET_APN = ""; // specify the APN name (if needed) extern const String ...
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