Forum >Replies by wahmalik85
Replies （15）
- You Reply: Thank you Grey,
I did not think of this before ^______^ - You Reply: why there is no answer?
- You Reply: up!!!
- You Reply: Thank you Jose for your replaying.
I can connect to GPRS successfully in my office, but when I go out by car to different locations, some locations the signal goes out and it is stop sending data.
So I need sometimes to reconnect automatically without resetting the module.
best wishes; - You Reply: no answer
I have problem of losing GSM/GPRS connection, is there any suggestions to solve this problem?
How I can to reconnect again? - You Reply: [quote="Jose"]
let me know if you can keep the GPS while GPRS or SMS is enable without cold resetting.
I'll give it a go in my side.
[/quote]
Yes, I get the GPS coordinates and send them to SMS and GPRS without resetting between GPS and GSM.
^_^
best regards. - You Reply: Hi,
I found 2 problems I faced.
1- I missed to type double quote (") before ** and after.
what I did is:Code: Select allthe right is:Serial.println("777xxxxxx");Code: Select all2- the buffer size of serial was to small (64), so I can not send more than 64 character to the Module, so the AT command considered not complete.Serial.println("\"777xxxxxx\"");
the result would be like:Code: Select all+CMS ERROR: 302
- You Reply: Here is the code:Code: Select all
#include <Arduino.h> #include <Wire.h> char aux_str[30]; char aux; char latitude[15]; char longitude[15]; char inChar; int index; char inData[200]; char par1 [20]; char par2 [20]; char par3 [20]; char par4 [20]; char par5 [20]; char par6 [20]; int loop_no = 0; /****************************************************************SMS********************/ char phone_no[20]; char inSMS[200]; boolean msgFound = false; /**************************************************************************************/ 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); // 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(2000); Serial.begin(9600); delay(5000);//call ready delay(5000); delay(5000); start_GSM(); delay(5000); start_GPS(); delay(500); } void loop() { read_GPS(); delay(2000); /****************************************************************SMS*******************/ SendReadSMSComm(); if(msgFound) { //Serial.println("message will be send"); sendSMS(); delay(1000); DeleteAllMSGs(); } /**************************************************************************************/ if(loop_no > 0 ) { send_GPRS(); }else{ loop_no ++; } delay(15000); msgFound = false; } /****************************************************************SMS********************/ void SendReadSMSComm() { Serial.println("AT"); delay(1000); Serial.println("AT+CMGR=1"); delay(3000); readSMS(); strtok(inSMS, ","); strcpy(phone_no,strtok(NULL, ",")); // Gets ** printBuff(); } void readSMS() { index=0; while(Serial.available() > 0) // Don't read unless // there you know there is data { if(index < 199) // One less than the size of the array { inChar = Serial.read(); // Read a character inSMS[index] = inChar; // Store it index++; // Increment where to write next inSMS[index] = '\0'; // Null terminate the string } } if(index > 20) { msgFound = true; }else{ msgFound = false; } } void DeleteAllMSGs() { Serial.println("AT"); delay(1000); Serial.println("AT+CMGD=1,4"); delay(5000); printBuff(); } void sendSMS() { Serial.println("AT"); delay(1000); //Send message Serial.println("AT+CMGF=1"); delay(1000); Serial.print("AT+CMGS=");//Change the receiver ** Serial.println("777xxxxxx"); delay(1000); Serial.print("lat=");//the message you want to send Serial.print(latitude); Serial.print(",lon="); Serial.print(longitude); delay(1000); Serial.write(26); delay(1000); Serial.println(); printBuff(); } /**********************************************************************************/ void start_GSM(){ //Configuracion GPRS Claro Argentina Serial.println("AT"); delay(2000); //printBuff(); Serial.println("AT+CREG?"); delay(2000); //printBuff(); Serial.println("AT+SAPBR=3,1,\"APN\",\"Fast-Internet\""); delay(2000); //printBuff(); Serial.println("AT+SAPBR=3,1,\"USER\",\"net\""); delay(2000); //printBuff(); Serial.println("AT+SAPBR=3,1,\"PWD\",\"net\""); delay(2000); //printBuff(); Serial.println("AT+SAPBR=3,1,\"Contype\",\"GPRS\""); delay(2000); //printBuff(); Serial.println("AT+SAPBR=1,1"); delay(10000); //printBuff(); Serial.println("AT+HTTPINIT"); delay(2000); //printBuff(); Serial.println("AT+HTTPPARA=\"CID\",1"); delay(2000); //printBuff(); clearBuff(); } void send_GPRS(){ Serial.print("AT+HTTPPARA=\"URL\",\"xxxxx.com/gps/geo2_1.php?lat="); Serial.print(latitude); Serial.print("&lon="); Serial.print(longitude); Serial.print("&par1="); Serial.print(par1); Serial.print("&par2="); Serial.print(par2); Serial.print("&par3="); //Serial.print("ok"); Serial.print(par3); Serial.print("&par4="); //Serial.print("3555"); Serial.print(par4); Serial.print("&par5="); //Serial.print("50251"); Serial.print(par5); Serial.print("&par6="); //Serial.print("0.001"); Serial.print(par6); Serial.println("\""); delay(2000); //waitTillResp(); Serial.println("AT+HTTPACTION=0"); //now GET action delay(2000); //waitTillResp(); clearBuff(); } void start_GPS(){ //Configuracion en Inicializacion GPS Serial.println("AT"); delay(1000); Serial.println("AT+CGPSIPR=9600");// (set the baud rate) delay(1000); Serial.println("AT+CGPSPWR=1"); // ?turn on GPS power supply? delay(1000); Serial.println("AT+CGPSRST=1"); //?reset GPS in autonomy mode? delay(10000); //delay para esperar señal del GPS } void read_GPS(){ Serial.println("AT+CGPSINF=0"); //printBuff(); read_String(); strtok(inData, ","); strcpy(longitude,strtok(NULL, ",")); // Gets longitude strcpy(latitude,strtok(NULL, ",")); // Gets latitude strcpy(par1,strtok(NULL, ",")); strcpy(par2,strtok(NULL, ",")); strcpy(par3,strtok(NULL, ",")); strcpy(par4,strtok(NULL, ",")); strcpy(par5,strtok(NULL, ",")); strcpy(par6,strtok(NULL, ",")); convert2Degrees(latitude); convert2Degrees(longitude); } void read_String() { index=0; while(Serial.available() > 0) // Don't read unless // there you know there is data { if(index < 199) // One less than the size of the array { inChar = Serial.read(); // Read a character inData[index] = inChar; // Store it index++; // Increment where to write next inData[index] = '\0'; // Null terminate the string } } } int8_t convert2Degrees(char* input){ float deg; float minutes; boolean neg = false; //auxiliar variable char aux[10]; if (input[0] == '-') { neg = true; strcpy(aux, strtok(input**, ".")); } else { strcpy(aux, strtok(input, ".")); } // convert string to integer and add it to final float variable deg = atof(aux); strcpy(aux, strtok(NULL, '\0')); minutes=atof(aux); minutes/=1000000; if (deg < 100) { minutes += deg; deg = 0; } else { minutes += int(deg) % 100; deg = int(deg) / 100; } // add minutes to degrees deg=deg+minutes/60; if (neg == true) { deg*=-1.0; } neg = false; if( deg < 0 ){ neg = true; deg*=-1; } float numeroFloat=deg; int parteEntera[10]; int cifra; long numero=(long)numeroFloat; int size=0; while(1){ size=size**; cifra=numero%10; numero=numero/10; parteEntera[size-1]=cifra; if (numero==0){ break; } } int indice=0; if( neg ){ indice++; input[0]='-'; } for (int i=size-1; i >= 0; i--) { input[indice]=parteEntera[i]+'0'; indice++; } input[indice]='.'; indice++; numeroFloat=(numeroFloat-(int)numeroFloat); for (int i=1; i<=6 ; i++) { numeroFloat=numeroFloat*10; cifra= (long)numeroFloat; numeroFloat=numeroFloat-cifra; input[indice]=char(cifra)+48; indice++; } input[indice]='\0'; } /*****************************/ void clearBuff(){ while( Serial.available() > 0) { Serial.read(); // Clean the input buffer } } void printBuff() { delay(1000); while( Serial.available() > 0) { Serial.print((char)Serial.read()); } Serial.println(""); delay(1000); clearBuff(); } void waitTillResp(){ int d = 0; while(Serial.available() < 1 && d != 10){ delay(1000); d++; } printBuff(); } - You Reply: Thank you Jose,
I increased the buffer size to 128 and I get the full message. - You Reply: [quote="Jose"]
I believe this is is caused because the shield is already initialized. Try to reset the shield once before using it and waiting for the LEDs to shut down.
[/quote]
The tool work now after yours note, thank you.
[quote="Jose"]
As for the message, I am thinking.. Could it be because the Serial buffer is full?
Do you get the whole list when manually inputting the AT commands?
[/quote]
from the tool, all 3 messages were read successfully, so is the problem from the serial buffer size?
I deleted 2 messages and left one message on the inbox and the problem still occurred. - You Reply: Thank you Jose for your replay.
I tried the tool, and it couldn't to connect with the Arduino.Code: Select allThere are more than 2 messages in the inbox but what I get from the serial is what I mention before.Sending AT query.. Invalid or no response from the device. Please check the modem port and the baud rate.Disconnecting port COM4.
The output corrupted before the message body. - You Reply: ammm, Thank you for your replay.
- You Reply: Hi all,
I included the library of SoftwareSerial.h in OBD.cpp file:
[code]#include <Arduino.h>
#include <avr/pgmspace.h>
#include <SoftwareSerial.h>
SoftwareSerial mySerial(10, 11); // RX, TX
#include "OBD.h"[/code]
and modified the original serial of uno to software serial in OBD.h file in the line 17
[code]#ifndef OBDUART
#if defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1280__) || defined(__AVR_ATmega644P__)
#define OBDUART Serial1
#else
#define OBDUART mySerial
#endif
#endif[/code]
and it complied successfully.
But when I attach the OBD adapter to software serial, the communication between OBD adapter and Arduino is faild and stuck on this loop:
[code]// initiate OBD-II connection until success
while (!obd.init()); [/code]
is there any solution for this?
thank you. - You Reply: Thank you Grey.
There is no local store/shop to sell these stuff in my city, so I buy these stuff from the internet store like dfrobot .
next time I'll ask for it.
Thank you again. - You Reply: Thank you Jose for your replying.
I increase the power from 7 volts to 12 volts, and it is worked now with some issues.
I upload the sketch for making call from arduino, and it is worked, but sometimes the STATS led light on and the board does not make the call, when I make a call from my cell phone to the SIM card on the module, I get that ** may be off or out the coverage area. I reset the board many times until it work again.
I notice that I must make 2 reset, first one will make STATS LED off, the second one will make the STATS LED on.
When I upload the sketch of driving the gsm mode via the USB interface, the module work correctly but I cant send AT commands through Serial Monitor or CoolTerm tool, it return nothing in Serial Monitor, in CoolTerm just Dots appear in the screen and nothing else.