[PIC] Interrupts in my code. Help me with my project.

[FyrewurXedge]

I am now creating/developing my project in C using PIC16F877A but I don't have any background in using microcontrollers specifically PICs.

I am wondering if I can use interrupts and what it is for.

I want my project to display an idle message in a LCD when no buttons are pressed. and when a button/switch is pressed the LCD screen will display measurements.

For example at idle: LCD DISPLAY - Please press a button.
BUTTON 1 is pressed - The voltage is x.xx value.
(measurement will be display as long the switch/button is on.)
If two buttons are pressed 2 measurements will be displayed after several delay.

If the switch where turned off the welcome message will be displayed again.

Thanks.

 

[embRTS]

Use if condition
like

if(button==1 or 0){
lcd_clear(); lcd_disp(your desired voltage/message); delay(few seconds);
lcd_clear(); lcd_disp(your welcome message);

 

[FyrewurXedge]

I'm having a problem in this scenario in VSM. I used the format you've given me, but when turn on and off the button, my circuit doesn't react (the lcd message doesn't change)