Forum >[SKU:TEL0051][V3][Arduino Mega] Don't know how to connect from arduino
[SKU:TEL0051][V3][Arduino Mega] Don't know how to connect from arduino

Hello,
I'm trying to use the GPS/GPRS/GSM Shield v3 for sending an HTTP and after a lot of reading and tests I don't know where to go. Let me explain step by step.
First problems I had to solve where the autobaud (don't ask me why) solved following the steps of a blog post from raviyp [1] , the external power suply, and then when the module starts correct and I could connect with a serial console the SIM card was not compatible. At this moment those problems are solved.
Ok, at this moment If I load into the arduino mega the next code:
The problem comes when I try to do those kind of things with Arduino. For example this code (taken from the geolocator example into the github [2]):
The led lights (Pwr, stat and net) are ok. What am I doing wrong?
I try with tinyGSM library and doesn't work the debug apps either.
Thanks in advance for your help.
[1] http://www.raviyp.com/embedded/183-sim9 ... d-solution
[2] https://github.com/DFRobot/GPS-GPRS-GSM ... RS_GPS.ino
I'm trying to use the GPS/GPRS/GSM Shield v3 for sending an HTTP and after a lot of reading and tests I don't know where to go. Let me explain step by step.
First problems I had to solve where the autobaud (don't ask me why) solved following the steps of a blog post from raviyp [1] , the external power suply, and then when the module starts correct and I could connect with a serial console the SIM card was not compatible. At this moment those problems are solved.
Ok, at this moment If I load into the arduino mega the next code:
Code: Select all
After set the switchs S2:Arduino, S1:Prog and Uart Select:GSM and Power off/Reset, I can connect using ColltermWin to the port and send AT Commands (Send SMS, Connect APN and query HTTP, etc.) perfectly. void setup() { //Init the driver pins for GSM function pinMode(3, OUTPUT); pinMode(4, OUTPUT); pinMode(5, OUTPUT); //Output GSM Timing digitalWrite(5, HIGH); delay(1500); digitalWrite(5, LOW); } void loop() { digitalWrite(3, HIGH); //disable GSM TX、RX digitalWrite(4, HIGH); //disable GPS TX、RX }
The problem comes when I try to do those kind of things with Arduino. For example this code (taken from the geolocator example into the github [2]):
Code: Select all
Loaded fine with the switchs S1:Arduino/S2:Prog, change the S2 to Comm and reset. I can see into the Arduino Serial Monitor how the commands are printed into the Serial but the module does not gives any kind of answer.void setup() { //Init the driver pins for GSM function pinMode(3, OUTPUT); pinMode(4, OUTPUT); pinMode(5, OUTPUT); //Output GSM Timing digitalWrite(5, HIGH); delay(1500); digitalWrite(5, LOW); Serial.begin(115200); while(!Serial); Serial.println("Begin app"); // Use these commands instead of the hardware switch 'UART select' in order to enable each mode // If you want to use both GMS and GPS. enable the required one in your code and disable the other one for each access. digitalWrite(3,LOW);//enable GSM TX、RX digitalWrite(4,HIGH);//disable GPS TX、RX delay(20000); start_GSM(); send_GPRS(); } void start_GSM(){ //Configuracion GPRS Claro Argentina Serial.println("AT"); delay(2000); Serial.println("AT+CREG?"); delay(2000); Serial.println("AT+SAPBR=3,1,\"APN\",\"EM\""); delay(2000); Serial.println("AT+SAPBR=3,1,\"Contype\",\"GPRS\""); delay(2000); Serial.println("AT+SAPBR=1,1"); delay(10000); Serial.println("AT+HTTPINIT"); delay(2000); Serial.println("AT+HTTPPARA=\"CID\",1"); delay(2000); } void send_GPRS(){ Serial.print("AT+HTTPPARA=\"URL\",\"www.google.com\""); delay(2000); Serial.println("AT+HTTPACTION=0"); //now GET action delay(2000); } void loop() { delay(30000); Serial.println("AT"); }
The led lights (Pwr, stat and net) are ok. What am I doing wrong?
I try with tinyGSM library and doesn't work the debug apps either.
Thanks in advance for your help.
[1] http://www.raviyp.com/embedded/183-sim9 ... d-solution
[2] https://github.com/DFRobot/GPS-GPRS-GSM ... RS_GPS.ino
2017-12-16 01:01:56 In the Github read me file, the server and php are needed to built up, have you check about the server part first.
robert.chen
