#include <stdio.h>
#include <wiringPi.h>


#define BTNUP 24
#define BTNDN 25

int main(void) {

    int fd, num = 20;

    wiringPiSetup();

    pinMode(BTNUP, INPUT);
    pinMode(BTNDN, INPUT);

    fd = lcdInit(2, 16, 4, 5, 4, 0, 1, 2, 3, 4, 5, 6, 7);

    lcdPosition(fd, 0, 1);
    lcdPuts(fd, "       xyzString");

    while(1) {
        if(digitalRead(BTNDN == 1)) {
            delay(10);
            if (digitalRead(BTNDN) == 1) {
                num--;
            }
            while(digitalRead(BTNDN));
        }

        if(digitalRead(BTNUP) == 1) {
            delay(10);
            if (digitalRead(BTNUP) == 1) {
                num++;
            }
            while(digitalRead(BTNUP));
        }

        lcdPosition(fd, 0, 0);
        lcdPrintf(fd, "%d", num);
    }
    return 0;
}