Write a program in C that reads a 3-bit desired light pattern from the 3 input switches connected to pins P2.3-P2.5 and displays the pattern on the 8 LEDs (pins P1.0-P1.7) with some ""light playing"" options based on the input from other 3 switches (pins P2.0-P2.2).

Question

Computers & Technology

Micheal Buchanan

30 December, 12:34

Write a program in C that reads a 3-bit desired light pattern from the 3 input switches connected to pins P2.3-P2.5 and displays the pattern on the 8 LEDs (pins P1.0-P1.7) with some ""light playing"" options based on the input from other 3 switches (pins P2.0-P2.2).

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Answers (1)

Know the Answer?

Ross Chase · Answer 1

Check the explanation

Explanation:

#include

main ()

{ int k=1, p, l, i;

int p2[8], p1[8];

for (i=0; i<8; i++) {

p1[i]=0;

p2[i]=0;

}

while (k==1)

{

printf ("enter the pin inputs from p2.3-p2.5:");

scanf ("%d%d%d",&p2[3],&p2[4],&p2[5]);

printf ("Press Logic 0 for on and 1 for off on switch port p2.0/n");

scanf ("%d",&l);

p1[3]=p2[3];

p1[4]=p2[4];

p1[5]=p2[5];

if (l==0)

{p=1;

for (i=0; i<8; i++)

printf ("p1.%d : %d/n", i, p2[i]);

printf ("/n press either 1 to continue or 0 to stop : ");

scanf ("%d",&p);

printf ("/n");

while (p==1)

{ printf ("enter the pin inputs from p2.3-p2.5:");

scanf ("%d%d%d",&p2[3],&p2[4],&p2[5]);

p1[3]=p2[3];

p1[4]=p2[4];

p1[5]=p2[5];

for (i=0; i<8; i++)

printf ("p1.%d : %d/n", i, p2[i]);

printf ("/n press either 1 to continue or 0 to stop : ");

scanf ("%d",&p);

printf ("/n");

}

}

else

{

printf ("After Rotation of pattern : /n");

for (i=0; i<8; i++)

{ if (p2[i]==0)

printf ("p1.%d : 1/n", i);

else

printf ("p1.%d : 0/n", i);

}

}

printf ("press 0 for on and 1 for off on switch port p2.1 : /n");

scanf ("%d",&l);

if (l==0)

{ printf ("/nLeft Rotation of pattern from read mode : /n");

printf ("p1.0 : %d/n", p1[0]);

printf ("p1.1 : %d/n", p1[5]);

printf ("p1.2 : %d/n", p1[6]);

printf ("p1.3 : %d/n", p1[3]);

printf ("p1.4 : %d/n", p1[2]);

printf ("p1.5 : %d/n", p1[1]);

printf ("p1.7 : %d/n", p1[6]);

printf ("p1.7 : %d/n", p1[7]);

}

else

{printf ("/nRight rotation of pattern from read mode: / n");

printf ("p1.0 : %d/n", p1[0]);

printf ("p1.1 : %d/n", p1[1]);

printf ("p1.2 : %d/n", p1[2]);

printf ("p1.3 : %d/n", p1[7]);

printf ("p1.4 : %d/n", p1[6]);

printf ("p1.5 : %d/n", p1[5]);

printf ("p1.7 : %d/n", p1[4]);

printf ("p1.7 : %d/n", p1[3]);

}

printf ("press 0 for on and 1 for off on switch port p2.2 : /n");

scanf ("%d",&l);

if (l==0)

printf ("Make Rotation fast/n");

else

printf ("Make Rotation slow/n");

printf ("Enter 1 to continue or 0 to exit:");

scanf ("%d",&k);

printf ("/n");

}

}