Go to timetric.com and click register.

Once you are registered, you need to create an empty data series, which you'll post to later. Go to your http://timetric.com/dashboard/, and click "Create Series"; then "Create By Hand". Fill in a title; along with any other information you want - but no value or timestamp.

When you hit Create, you'll be redirected to the new, empty series. Note its URL - this is the address you need to talk to in your client.

Now go to http://timetric.com/settings, and choose Applications. Create for yourself a new API token, in the Developer side of the screen; name it 'mbed' or similar. This will generate for you an opaque API token - a username/password pair you can use for authentication.

Create a new Project in the Compiler and add the HTTPClient Library from [wiki:HTTPClient here].

In the listing below, replace `APITOKEN_KEY` and `APITOKEN_SECRET` with the Key and Secret from Timetric; and `SERIES_URL` with the URL you've created above.

This program will read data from the `DigitalIn` port on pin 19, and post its value, every minute, to the series we created on Timetric above. Note that, before we start transmitting data, we write a "null" value to the series; this is not compulsory, but it provides an indicator to terminate each set of measurements you send.

#!cpp
#include "mbed.h"
#include "HTTPClient.h"
#include "string.h"

#define APITOKEN_KEY "insert_key_here"
#define APITOKEN_SECRET "insert_secret_here"
#define SERIES_URL "http://timetric.com/series/CrIWmUtiTz23mVzxZ4zP1w/"


DigitalIn poti(p19);
DigitalOut led(LED1);
HTTPClient http;

int main() {
    char data[30];
    float value;
    http.auth(APITOKEN_KEY, APITOKEN_SECRET);
    http.post(SERIES_URL, "value=null");
    while(1) {
        value = poti.read();
        snprintf(data, 30, "value=%f", value);
        http.post(SERIES_URL, data);

        printf("%f\n", value);
        
        led = !led;
        wait(1);
    }
}