File content as of revision 2:d1555ccd1c6d:

#include "mbed.h"
#include "Serial.h"
#include <string>

 // WE USE PA_2 = TX } CN9
 //        PA_3 = RX } CN9
 
 
AnalogIn analog_value(A0);
 
DigitalOut led(LED2);

int main() {
    float meas;
    Serial serial_td1208(PA_2, PA_3);
    
    std::string init("AT");
    std::string query("AT$SS=00 12 FF 42");
    serial_td1208.printf("%s", init);
    
    
    printf("\nAnalogIn example\n");
    led = 1;
    
    while(1) {
        /*
        meas = analog_value.read(); // Converts and read the analog input value (value from 0.0 to 1.0)
        meas = meas * 3300; // Change the value to be in the 0 to 3300 range
        printf("measure = %.0f mV\n", meas);
        if (meas > 2000) { // If the value is greater than 2V then switch the LED on
          led = 1;
        }
        else {
          led = 0;
        }*/
        if (led == 1)
            led = 0;
        else
            led = 1;
        serial_td1208.printf("%s", query);
        wait(10); // 750 ms
    }
}