File content as of revision 0:28ee674a717f:

#include "mbed.h"
Serial master(PC_6,PC_7);
Serial pc(USBTX,USBRX);
DigitalIn limit1(D9);
DigitalIn limit2(D8);
DigitalIn limit3(D7);
DigitalIn limit4(D6);
DigitalIn limit5(D5);
DigitalIn limit6(D4);
DigitalIn limit7(D2);
DigitalOut green(D12);
DigitalOut yellow(D11);
DigitalOut red(D10);
char data;
void send_data(char send);
int main(){
    
    green=1;
    
    limit1.mode(PullUp);
    
    limit2.mode(PullUp);
    
    limit3.mode(PullUp);
    
    limit4.mode(PullUp);
    
    limit5.mode(PullUp);
    
    limit6.mode(PullUp);
    
    limit7.mode(PullUp);
    
    while(true){
        
        if(!limit1||!limit2){
                
                red=1;
                
                data=0x20;
                
                send_data(data);
                
            }else if(!limit3||!limit4){
                
                red=1;
                
                data=0x24;
                
                send_data(data);
                
            }else if(!limit5){
                
                red=1;
                
                data=0x28;
                
                send_data(data);
                
            }else if(!limit6){
                
                red=1;
                
                data=0x30;
                
                send_data(data);
                
            }else if(!limit7){
                
                red=1;
                
                data=0x32;
                
                send_data(data);
                
            }else{
                
                red=0;
                
                data=0x34;
                
                send_data(data);
                
                }
            
            
        }
        
    }

void send_data(char send){
    yellow=1;
    master.putc(send);
    wait(0.005);
    }