How do you send sms in serial monitor using the at commands? Iv found these instructions but they seem to be for hyper terminal because no prompt shows up and ctrl+Z Have no effect. Buth NL & CR are selected and the proper baud rate is selected.
im using a tinysine gsm module and an arduino uno.
To send an SMS, AT commands need to be entered in the following order:
- at+cmgf=1 (send SMS in text mode)
- at+cmgs=”+9955555555″ (Destination number; replace +99 with the country code of the country you want to send the SMS to, 55555555 needs to be replaced with the destination number)
When a prompt > appears enter the text you wish to send as a message, for example:
> Test sending SMS message
press CTRL+Z keys to send the message
When the SMS is sent correctly, a response will appear on the screen:
+CMGS: xx (xx=reference number)