Hello Friends,
I am doing a GSM based project and using M10 GSm module for sending & receiving sms, I want to know what is the minimum signal strength for sending/receiving sms. when I send "AT+CSQ" command to the module ....it returns
+CSQ: 10,0
OK
As you can see that the signal strength is 10. So is it a good strength or worst
I also have another doubt, when I am sending sms I wait for '>' after issueing AT+CMGS command. if within 3 sec I don't receive this symbol I issue <ctl+z> but the module give +CMS ERROR: 3765(which means invalid input), what should I do in this case. should I restart the module as the module goes into hang mode.