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HELP!!a little more!!!

 
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drzxoulis



Joined: 12 Apr 2004
Posts: 14

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HELP!!a little more!!!
PostPosted: Fri Apr 16, 2004 10:08 pm     Reply with quote

Is any possible way i could really make the expression below look simpler without loosing its functionality.?????
Quote:

if (temp>80)
printf(lcd_putc,"\fPRESSURE:%4.0f mB\nHIGH TEMP",pres);
else if (temp<-20)
printf(lcd_putc,"\fPRESSURE:%4.0f mB\nLOW TEMP",pres);
else if (pres<500)
printf(lcd_putc,"\fLOW PRESSURE\nTEMP:%2.1f %CC",temp,0xDF);
else if (pres>1150)
printf(lcd_putc,"\fHIGH PRESSURE\nTEMP:%2.1f %CC",temp,0xDF);
else if (temp>80 && PRES<500)
lcd_putc("\fLOW PRESSURE\nHIGH TEMP");
else if (temp<-20 && PRES<500)
lcd_putc("\fLOW PRESSURE\nLOW TEMP");
else if (temp<-20 && PRES>1150)
lcd_putc("\fHIGH PRESSURE\nLOW TEMP");
else if (temp>80 && PRES>1150)
lcd_putc("\fHIGH PRESSURE\nHIGH TEMP");
else
printf(lcd_putc,"\fPRESSURE:%4.0f mB\nTEMP:%2.1f %CC",pres,temp,0xDF);

Any suggestion more than welcomed!!!!!Thanks in advance.......
Haplo



Joined: 06 Sep 2003
Posts: 659
Location: Sydney, Australia

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PostPosted: Sat Apr 17, 2004 1:53 am     Reply with quote

Are you sure you want to maintain the functionality of that code? Because I don't think it works properly as it is. You have overlapping conditions but they can't run together. For example if temp=100 and PRES=100, what do you want the code to print? Right now it will execute the line printf(lcd_putc,"\fPRESSURE:%4.0f mB\nHIGH TEMP",pres); but you also have another condition check to execute lcd_putc("\fLOW PRESSURE\nHIGH TEMP");, and this line will never run because the code flow will never get to this point.
drzxoulis



Joined: 12 Apr 2004
Posts: 14

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PostPosted: Sat Apr 17, 2004 7:29 am     Reply with quote

As you said the whole loop doesn't really work.
what i want to achieve is just a way of presenting the limits on the lcd.
this means having for each limit something writen eg."low temp" and silmutaneously the result from the other.
But for some reason it doesn't work if i want to have both warnings on the lcd.

Any ideas?
Humberto



Joined: 08 Sep 2003
Posts: 1215
Location: Buenos Aires, La Reina del Plata

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PostPosted: Sat Apr 17, 2004 8:06 am     Reply with quote

drzxoulis,

I suggest the following:

1) Reserve the upper line of the LCD to display PRESURE values,
2) Reserve the lower line to display TEMP values.

Code:
 

 
printf(lcd_putc,"\f"); // Clear the LCD display ONCE


if (pres<500)
   printf(lcd_putc,"LOW PRESSURE !");
else if (pres>1150)
   printf(lcd_putc,"HIGH PRESSURE !");
else
   printf(lcd_putc,"PRESSURE:%4.0f mB",pres);


if (temp>80)
   printf(lcd_putc,"\nHIGH TEMP !"); 
else if (temp<-20)
   printf(lcd_putc,"\nLOW TEMP !");
else
   printf(lcd_putc,"\nTEMP:%2.1f %CC",temp,0xDF);




Easy isnīt ???

Humberto
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