Comments (4)
@peterloveland94 Hi, can you try to manually issue AT command to check if you can use USSD service? Upload example SIM900_Serial_Debug, open serial monitor issue below commands. It's sure that what I got is not expected to you.
AT+CUSD=1,"*100#"
OK
+CUSD: 2
AT+CUSD=1,"*111*2#"
OK
+CUSD: 2
from gprs_sim900.
Thanks for the speedy response!
I can confirm that all of these commands work as intended and are issuing the correct responses, including the response from the network (the balance remaining on my SIM).
from gprs_sim900.
Please show me the response of balance, I was confused that no balance responsed to me. Thank you.
from gprs_sim900.
#define ballance "*120#"
char result[10];
char response[200]; //beware your memory
String ballance_string;
void setup() {
gprs.sendUSSDSynchronous(ballance,result,response);
ballance_string = String(response); //convert array to string
Serial.println(ballance_string);
}
This worked for me. Hope it helps someone else finding this.
from gprs_sim900.
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