Hello guys,
Im having a trouble when doing consecutive POST requests. I can see that the values are posted correctly on the web server, but it seems that each value is posted every minute aprox. I would like the value to be posted every 5 seconds. Im using and Arduino Shield 2! Here I post my code and see if anyone can help me 
#include <GSM.h>
// PIN Number
#define PINNUMBER ""
// APN data
#define GPRS_APN "" // replace with your GPRS APN
#define GPRS_LOGIN "" // replace with your GPRS login
#define GPRS_PASSWORD "" // replace with your GPRS password
// initialize the library instance
GSMClient client;
GPRS gprs;
GSM gsmAccess;
uint16_t reset = 0;
boolean oldRequestNotDone = true;
String idvariable = ""; // replace with your Ubidots Variable ID
String token = ""; // replace with your Ubidots token
void setup() {
// initialize serial communications and wait for port to open:
Serial.begin(9600);
Serial.println("Starting Arduino web client.");
// connection state
boolean notConnected = true;
// After starting the modem with GSM.begin()
// attach the shield to the GPRS network with the APN, login and password
while (notConnected) {
if ((gsmAccess.begin(PINNUMBER) == GSM_READY) & (gprs.attachGPRS(GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD) == GPRS_READY)) {
notConnected = false;
Serial.println("Connected to network!");
} else {
Serial.println("Not connected");
delay(1000);
}
}
}
void loop() {
int value = analogRead(A1);
if (oldRequestNotDone)
{
if (save_value(value)) {
Serial.println("HTTP request sent!");
}
}
else {
reset++;
//Serial.println("Data transmission failed!");
if (reset == 10) {
//asm volatile (" jmp 0"); // reset the Arduino board if the data transmission fail
}
}
oldRequestNotDone = false;
if (client.available())
{
char c = client.read();
Serial.print(c);
}
// if the server's disconnected, stop the client:
if (!client.available() && !client.connected()) {
Serial.println();
Serial.println("disconnecting.");
client.stop();
Serial.println("Stop the client!");
oldRequestNotDone = true;
}
}
boolean save_value(int value) {
Serial.println("connecting...");
int num = 0;
String var = "{\"value\":" + String(value) + "}";
num = var.length();
// if you get a connection, report back via serial:
if (client.connect("things.ubidots.com", 80)) {
Serial.println("connected");
// Make a HTTP request:
client.print("POST /api/v1.6/variables/" + idvariable + "/values HTTP/1.1\nContent-Type: application/json\nContent-Length: " + String(num) + "\nX-Auth-Token: " + token + "\nHost: things.ubidots.com\n\n");
client.println(var);
client.println();
return true;
} else {
// if you didn't get a connection to the server:
Serial.println("connection failed");
return false;
}
}