I am trying to get working SIM808 with Arduino. Can GET and POST GPRS HTTP request but only what cames on it's just body from server side {"error":true,"message":"Unauthorized"}
but I need header as it brings cookie for session.
+CREG: 0,1
AT+SAPBR=3,1,"Contype","GPRS"
OK
AT+SAPBR=3,1,"APN","giffgaff.com"
OK
AT+SAPBR=3,1,"USER","giffgaff"
OK
AT+SAPBR=3,1,"PWD",""
OK
AT+SAPBR=1,1
AT+SAPBR=2,1
+SAPBR: 1,1,"xx.xxx.xxx.xxx"
OK
AT+HTTPINIT
OK
AT+HTTPPARA="CID",1
OK
AT+HTTPPARA="URL","http://www.xxx.co.uk/index.php"
OK
AT+HTTPPARA="UA","MH Tracker"
OK
AT+HTTPPARA="CONTENT","Content-Length: 42"
OK
AT+HTTPPARA="CONTENT","Content-Type: application/x-www-form-urlencoded"
OK
AT+HTTPSSL=0
OK
AT+HTTPDATA=41,30000
pass=xxxx&user=xxxx&action=xxxx
OK
AT+HTTPACTION=1
OK
+HTTPACTION: 1,401,39
AT+HTTPREAD
+HTTPREAD: 39
{"error":true,"message":"Unauthorized"}
OK
AT+HTTPTERM
I got some results, but with error, looks like my code have some junk characters
any advice
POST /client/index.php HTTP/1.1 Content-Type: application/x-www-form-urlencoded Host: www.mhprojects.co.uk Content-Length: 41 pass=xxx6&user=xxx&action=xxx SEND OK HTTP/1.1 400 Bad Request Date: Thu, 01 Feb 2018 00:38:56 GMT Server: Apache Content-Length: 357 Connection: close Content-Type: text/html; charset=iso-8859-1 400 Bad RequestBad Request
Your browser sent a request that this server could not understand.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.
Arduino code
char data[350]="POST /client/index.php HTTP/1.1\r\nContent-Type: application/x-www-form-urlencoded\r\nHost: www.mhprojects.co.uk\r\nContent-Length: 41\r\n\r\npass=xxx&user=xxx&action=xxx";
int PowerOn = 12;//Power on pin
int Reset = 11;//Reset pin
char aux_str[50];
//////////////
void setup() {
pinMode(PowerOn, OUTPUT);
pinMode(Reset, OUTPUT);
Serial.begin(9600);// UART baud rate
power_on();
Serial.println(F("Powering ON"));
Serial.println();
Serial.println(F("Connecting to the network..."));
while( send_command("AT+CREG?", "+CREG: 0,1", 1000)== 0 );
}
/////////////
void loop() {
char buffer[200];
if (send_command("AT+CIPMUX=0", "OK", 2000) == 1)// Selects Single-connection mode
{
if (send_command("AT+CSTT=\"giffgaff.com\",\"giffgaff\",\"\"", "OK", 2000) == 1)// Sets the APN, user name and password
{
if (send_command("AT+CIICR", "OK", 10000) == 1)// Brings Up Wireless Connection
{
if (send_command("AT+CIFSR", ".", 3000) == 1)// Gets Local IP Address
{
if (send_command("AT+CIPSTART=\"TCP\",\"www.mhprojects.co.uk\",\"80\"","CONNECT OK", 10000) == 1)// Opens a TCP socket
{
sprintf(aux_str,"AT+CIPSEND=%d", strlen(data));
if (send_command(aux_str, ">", 1000) == 1) {
send_command(data, "SEND OK", 1000);
while (true) {
read_UART_buffer(buffer,sizeof(buffer), 0);
}
Serial.println(buffer);
}
}
else
{
Serial.println(F("Error setup TCP connection\r\n\r\n"));
}
}
else
{
Serial.println(F("Error getting the IP address\r\n\r\n"));
}
}
else
{
Serial.println(F("Error bring up wireless connection\r\n\r\n"));
}
}
else
{
Serial.print(F("Error setting the APN\r\n\r\n"));
}
}
else
{
Serial.print(F("Error setting the single connection\r\n\r\n"));
}
send_command("AT+CIPCLOSE", "CLOSE OK", 1000);
send_command("AT+CIPSHUT", "SHUT OK", 1000);
}
////////////////
void power_on() {
// power on pulse
digitalWrite(PowerOn,LOW);
delay(500);
digitalWrite(PowerOn,HIGH);
delay(3000);
digitalWrite(PowerOn,LOW);
delay(3000);
}
///////////////
void reset() {
digitalWrite(Reset,LOW);
delay(500);
digitalWrite(Reset,HIGH);
delay(3000);
digitalWrite(PowerOn,LOW);
delay(500);
}
///////////////////////////////////////////////////////////////////////////////////
int8_t send_command(char* ATcommand, char* expected_answer, unsigned int timeout) {
uint8_t x = 0, answer = 0;
char response[50];
unsigned long previous;
memset(response, '\0', 50); // Initialice the string
delay(100);
while ( Serial.available() > 0) Serial.read(); // Clean the input buffer
Serial.println();
Serial.println();
Serial.println(ATcommand); // Send the AT command
x = 0;
previous = millis();
// this loop waits for the answer
do {
if (Serial.available() != 0) { // if there are data in the UART input buffer, reads it and checks for the asnwer
response[x] = Serial.read();
Serial.print(response[x]);
x++;
if (strstr(response, expected_answer) != NULL) // check if the desired answer (OK) is in the response of the module
{
answer = 1;
}
}
}
while ((answer == 0) && ((millis() - previous) 0) Serial.read(); // Clean the input buffer
}
////////////////////////////////////////////////////////////
void read_UART_buffer(char *buffer,int count, unsigned int timeOut) {
int i = 0;
unsigned long timerStart;
timerStart = millis();
while(1) {
while (Serial.available()!=0){
Serial.write(Serial.read());
char c = Serial.read();
buffer[i++] = c;
}
//buffer[i]='\0';
if((unsigned long) (millis() - timerStart) > timeOut * 1000UL) {
break;
}
}
}
