File content as of revision 2:238093c1d98d:

#include "mbed.h"
#include "stdio.h"
#include "stdlib.h"

using namespace std;

Serial xbee1(PA_9, PA_10); //was PA_2, PA_3
DigitalOut rst1(PA_11);
DigitalOut myled(LED1);
DigitalIn mybutton(USER_BUTTON);

int counter = 0;
void sendsignal();

int main()
{
    
    while(1) {   
        if (mybutton == 0) { //if button pressed
            sendsignal();
        }
        rst1 = 0;   //Set reset pin to 0
        myled = 0;
        wait_ms(1);
        rst1 = 1;   //Set reset pin to 1
        wait_ms(1);
        wait(2);
    }
}

void sendsignal()
{
    if(counter == 0) {
        xbee1.putc(10); //XBee write
        myled = 1; // LED is ON
        wait(1);
        counter++;
    }
    else if (counter == 1) { //this one doesn't work for some reason :/
        xbee1.putc(5);
        counter = 0;
        myled = 1; // LED is ON
        wait(0.2);
        myled = 0;
        wait(0.2);
        myled = 1; // LED is ON
        wait(0.2);
        myled = 0;
    }
}