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code to button switch on LCD

 
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Nebbiolo



Joined: 09 Jun 2019
Posts: 1

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code to button switch on LCD
PostPosted: Sun Jun 09, 2019 6:18 pm     Reply with quote
Hi! Can anyone help with a solution to my code? I'm new about C language but, I'm learning a little every day. I wrote this code to make a button when pressed, turn on a LED and send to LCD the status of each LED. But I can't make this work properly!

That is what I would like to do:
When press button at RB3, turn on the LED A0 and show at LCD: Door 01,
and when I press again the RB3, turn the other LED A1 and show at LCD: Door 02.

Someone can tell me how to write correctly this code?
Code:

while(TRUE)
   {   
       if(input(PIN_B3) == 0){   
       printf(lcd_putc,"\fDOOR 01");
                             }

       if(input(PIN_B3) == 0){   
       printf(lcd_putc,"\fDOOR 02");
                             }
       
                                 
       if(input(PIN_B3) == 0){     
       output_toggle(PIN_A0);     
       output_toggle(PIN_A1);     
       delay_ms(500);             
                             }

Thank you so much for any help!
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Sun Jun 09, 2019 9:07 pm     Reply with quote
Two methods to read buttons are given here:
http://www.ccsinfo.com/forum/viewtopic.php?t=58066&start=7
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