File content as of revision 1:0f68a8a42a12:

#include "mbed.h"
#include "aqm0802.h"

aqm0802 aqm(PB_9, PB_8);

int main() {
    uint8_t   mode, contrast=0, contrastFlag=false;
    int       CGcounter, FADEcounter, a=1, i=5;
//    char unchi[] = "unchi";
    char buf[10] = {};
    sprintf(buf,"%d", i);
    const char *u = buf;
    
    while(1) {
        switch(mode) {
        case 0:  // init
            aqm.cmd(0x01);
            wait_ms(50);
            mode++;
            wait(1);
            break;
        case 1:  // SWITCH
            aqm.setCursor(0, 0);
            aqm.printStr("I");
            mode++;
            wait(1);
            break;
        case 2:  // SCI
            aqm.setCursor(2, 0);
            aqm.printStr("LOVE");
            mode++;
            wait(1);
            
            break;
        case 3:
            aqm.setCursor(3, 1);
            aqm.printStr(1234);
            FADEcounter = 0;
            mode++;
            wait(1);
            mode=0;
            break;
            /*
        case 4:
            if (contrastFlag == false) {
                if (++contrast >= 54) contrastFlag = true;
            } else {
                if (--contrast <= 17) {
                    contrastFlag = false;
                    if(++FADEcounter >= 2) {
                        mode = 0;
                    }
                }
            }
            aqm.setContrast(contrast);
            break;
            */
        }
        wait(0.05);
    }
}