This is a good tutorial for sending and receiving(the harder part!) texts over serial… wish i had found this earlier!
Here is his github repository.
December 3, 2017
This is a good tutorial for sending and receiving(the harder part!) texts over serial… wish i had found this earlier!
Here is his github repository.
Administrator
at+sttone is ringtone ( i think )
yep. this is it....
at+calm=1 --> gets the call tone when dialing to be ...
or maybe it its this at+crsl=? at+crsl? at+crsl=10
https://blog.jokielowie.com/en/2016/10/raspberry-pi-oraz-siec-gsm-wysylamy-sms-laczymy-sie-z-internetem-iot/ GSM DC power converter
maddk840
December 3, 2017 — 4:33 pm
https://raspberrypi.stackexchange.com/questions/45927/wire-raspberry-pi-tft-display-so-as-to-keep-the-gpio-pins-available-for-use
maddk840
December 3, 2017 — 4:33 pm
and the 12 pin is what shuts off the GSM module