File content as of revision 2:09bf05d66065:

#include "mbed.h"
#include "io.h"

io io;

Ticker tk; // 1s timer for switch check & weighgt measure
float weight;
uint8_t fPow = 0;

 // 1s timer for switch check & weighgt measure
 void ticker_1s()
{
    io.analog_pow(1); // turn analog power on
    weight = io.get_weight(); // get weight [g]
    // check switch, and control power flag (fPower)
    if (fPow == 0 && io.get_switch() == 1){
        while(io.get_switch() == 1); // wait until switch released
        fPow = 1;
    }
    if (fPow == 1 && io.get_switch() == 1){
        while(io.get_switch() == 1); // wait until switch released
        fPow = 0;
    }

//    io.display_value = (uint16_t)(io.get_weight() * 9999.0); // dummy display
    io.display_value = (int)(io.get_x() * 9900 + io.get_y() * 99); // test: display joystick XY value

    io.analog_pow(0); // turn analog power off
}

int main()
{
    tk.attach(&ticker_1s, 0.1);
    io.calibrate_weight(); // initial calibration
    while(1){
        for (float i = 0; i < 1.0; i+=0.05){
            if (i <0.5) io.display(1.0-i);
            else io.display(i); // change display brightneess
            wait(0.1);
//            io.display_value = (uint16_t)(io.get_weight() * 9999.0); // dummy display
        }
    }
}