{
//////1
key=0xfe;
if(key!=0xfe)
{
delay(500);
if(key!=0xfe)
{
switch(key)
{
case 0xee:num=7 break;
case 0xde:num=8 break;
case 0xbe:num=9 break;
case 0x7e:num=13;break; //"/"
}
return num;
}
}
////// 1
////// 2
key=0xfd;
if(key!=0xfd)
{
delay(500);
if(key!=0xfd)
{
switch(key)
{
case 0xed:num=4 break;
case 0xdd:num=5 break;
case 0xbd:num=6 break;
case 0x7d:num=12;break; //*
}
return num
}
}
//////2
//////3
key=0xfb;
if(key!=0xfb)
{
delay(500);
if(key!=0xfb)
{
switch(key)
{
case 0xeb:num=1 break;
case 0xdb:num=2;break;
case 0xbb:num=3;break;
case 0x7b:num=11;break;
}
return num
}
}
//////3
//////4
key=0xf7;
if(key!=0xf7)
{
delay(500);
if(key!=0xf7)
{
switch(key)
{
case 0xe7:num=0;break;
case 0xd7:num=15;break;
case 0xb7:num=14;break;
case 0x77:num=10;break;
}
return num
}