Question

Write a C code using a PIC C Compiler Software to program an Elevator prototype as illustrated in the following video.

(pic16f877a)

Answer 1

#define RED1 PORTB.B0 #define ORANGE1 PORTB.B1 #define GREEN1 PORTB.B2 #define RED2 PORTB.B5 #define ORANGE2 PORTB.B6 #define GREEN2 PORTB.B7 #define REDTIME 1000 #define ORANGETIME 500 //Using #define preprocessor macros will make your //code easier to read, write, update and debug /* Pin Map 0 RED 1 ORANGE 2 GREEN 3 X 4 X 5 RED 6 ORANGE 7 GREEN */ void main() { TRISB=0;//Set PORTB to Output while(1){ RED1=1; ORANGE1=0; GREEN1=0; RED2=0; ORANGE2=0; GREEN2=1; delay_ms(REDTIME); RED1=1; ORANGE1=0; GREEN1=0; RED2=0; ORANGE2=1; GREEN2=0; delay_ms(ORANGETIME); RED1=0; ORANGE1=1; GREEN1=0; RED2=1; ORANGE2=0; GREEN2=0; delay_ms(ORANGETIME); RED1=0; ORANGE1=0; GREEN1=1; RED2=1; ORANGE2=0; GREEN2=0; delay_ms(REDTIME); RED1=0; ORANGE1=1; GREEN1=0; RED2=1; ORANGE2=0; GREEN2=0; delay_ms(ORANGETIME); RED1=1; ORANGE1=0; GREEN1=0; RED2=0; ORANGE2=1; GREEN2=0; delay_ms(ORANGETIME); } }