File content as of revision 2:f8e46daca111:

#include "mbed.h"
#include "cmsis_os.h"


//#include "Airsofttimer.h"
#include "TextLCD.h"


struct product {
  int weight;
  float price;
} ;



DigitalOut heartbeatLed(LED1);
DigitalOut led2(LED2);
DigitalOut led3(LED3);
DigitalOut led4(LED4);

/*DigitalOut rs(P1_30);
DigitalOut e(P1_31);
DigitalOut d4(P0_23);
DigitalOut d5(P0_24);
DigitalOut d6(P0_25);
DigitalOut d7(P0_26);*/

DigitalOut buzzer(P2_3);

DigitalOut leda(P2_4);
DigitalOut ledb(P2_5);

DigitalOut col1(P0_16);
DigitalOut col2(P0_17);
DigitalOut col3(P0_18);

DigitalIn row1(P0_8);
DigitalIn row2(P0_9);
DigitalIn row3(P0_10);
DigitalIn row4(P0_11);

DigitalIn button(P0_5);
DigitalIn key(P0_4);

int colCounter = 1;

//keyboardRowPins = {P0_8 , P0_9 , P0_10, P0_11};              // ROWS=P0.8 -> P0.11
//keyboardColPins = {P0_16, P0_17, P0_18};                     // COLS=P0.16 -> P0.18

void beep(){
    buzzer = 1;
    wait(0.02);
    buzzer = 0;
}

void heartbeatThread(void const *args){
    while(true){
        heartbeatLed = 1;
        osDelay(10);
        heartbeatLed = 0;
        osDelay(300);
        heartbeatLed = 1;
        osDelay(10);
        heartbeatLed = 0;
        osDelay(680);
    }
}

osThreadDef(heartbeatThread, osPriorityNormal, DEFAULT_STACK_SIZE);

int main()
{
    osThreadCreate(osThread(heartbeatThread), NULL);
    TextLCD lcd(P1_30, P1_31, P0_23, P0_24, P0_25, P0_26,  TextLCD::LCD20x4); // rs, e, d4-d7

    while(1) {
        //lcd.cls();
        lcd.locate(0,0);
        lcd.printf("AirsoftTimer\n");
        col1 = 1;
        col2 = 0;
        col3 = 0;
        lcd.printf("r1:%d r2:%d r3:%d r4:%d\n", row1.read(), row2.read(), row3.read(), row4.read());
        lcd.printf("Buzzer:%d Key:%d\n",buzzer.read(), key.read());
        
/*        led2 = 1;
        led3 = 1;
        led4 = 1;*/
        //rs = e = d4 = d5 = d6 = d7 = 1;
        leda = ledb = 1;
        beep();
        
/*        switch(colCounter){
            case 1:
                col1=1;
                col2=0;
                col3=0;
            break;
            case 2:
                col1=0;
                col2=1;
                col3=0;
            break;
            case 3:
                col1=0;
                col2=0;
                col3=1;
            break;
        }
        
        colCounter++;
        if(colCounter > 3) colCounter = 1;*/
        
        wait(0.2);

        ///////////////////////

        
        led2 = 0;
        led3 = 0;
        led4 = 0;
        //rs = e = d4 = d5 = d6 = d7 = 0;
        leda = ledb = 0;
        osDelay(200);
    }
}



/*
char degree[8] = {0x02,0x05,0x05,0x02,0x00,0x00,0x00,0x00};

lcd.putcustomChar(1,degree,0x01,12,0);

lcd.printf("C");
*/