![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
switches and lights
Dependencies: mbed
main.cpp@0:a6003d0979bf, 2014-10-15 (annotated)
- Committer:
- jkangwi
- Date:
- Wed Oct 15 19:13:59 2014 +0000
- Revision:
- 0:a6003d0979bf
lab 3, switches and lights
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Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jkangwi | 0:a6003d0979bf | 1 | #include "mbed.h" |
jkangwi | 0:a6003d0979bf | 2 | // Lab 3 |
jkangwi | 0:a6003d0979bf | 3 | // This program explores the basic capabilites of the digital I/O on the processor |
jkangwi | 0:a6003d0979bf | 4 | // Written by: MIDN 3/C N. Weinhardt, MIDN 3/C J. Kangwijaya, 09/22/14 |
jkangwi | 0:a6003d0979bf | 5 | //Modified: |
jkangwi | 0:a6003d0979bf | 6 | // 9/23/14 MIDN 3/C. Weinhardt. Corrected last if else statement. |
jkangwi | 0:a6003d0979bf | 7 | BusOut zed(p5, p6, p7, p8, p11); //data bus for LEDs |
jkangwi | 0:a6003d0979bf | 8 | DigitalIn sw4(p16); // switch for control of LEDs |
jkangwi | 0:a6003d0979bf | 9 | DigitalIn sw5 (p17); // switch for control of LEDs |
jkangwi | 0:a6003d0979bf | 10 | int w1; // variable to store switch 4 |
jkangwi | 0:a6003d0979bf | 11 | int w2; // variable to store switch 5 |
jkangwi | 0:a6003d0979bf | 12 | main() |
jkangwi | 0:a6003d0979bf | 13 | { |
jkangwi | 0:a6003d0979bf | 14 | int x; // variable to store binary input |
jkangwi | 0:a6003d0979bf | 15 | w1=sw5; // variable to store switch 5 |
jkangwi | 0:a6003d0979bf | 16 | w2=sw4; // variable to store switch 4 |
jkangwi | 0:a6003d0979bf | 17 | x=4; // displays 0b0100 on LEDs |
jkangwi | 0:a6003d0979bf | 18 | zed=x; // read switch into variable |
jkangwi | 0:a6003d0979bf | 19 | while(1) { // infinite while loop |
jkangwi | 0:a6003d0979bf | 20 | |
jkangwi | 0:a6003d0979bf | 21 | if(w1==1 && w2==1) { // if sw5 and sw4 are on |
jkangwi | 0:a6003d0979bf | 22 | x=4; // displays 0b0100 on LEDs |
jkangwi | 0:a6003d0979bf | 23 | zed=x; // read switch into variable |
jkangwi | 0:a6003d0979bf | 24 | |
jkangwi | 0:a6003d0979bf | 25 | } else if (w1==1 &&w2==0) { // if sw5 is on and sw4 is off |
jkangwi | 0:a6003d0979bf | 26 | x=x/2; // x equals the variable divided by 2 to be displayed on the LEDs |
jkangwi | 0:a6003d0979bf | 27 | zed=x; // read switch into variable |
jkangwi | 0:a6003d0979bf | 28 | wait(0.5); // change the value every 0.5 seconds |
jkangwi | 0:a6003d0979bf | 29 | } else if (w1==0 && w2==1) { // if sw5 is off and sw4 is on |
jkangwi | 0:a6003d0979bf | 30 | x=x*2; // x equals the variable multiplied by 2 to be displayed on the LEDs |
jkangwi | 0:a6003d0979bf | 31 | zed=x; // read switch into variable |
jkangwi | 0:a6003d0979bf | 32 | wait(0.5); // change the value every 0.5 seconds |
jkangwi | 0:a6003d0979bf | 33 | } |
jkangwi | 0:a6003d0979bf | 34 | } |
jkangwi | 0:a6003d0979bf | 35 | |
jkangwi | 0:a6003d0979bf | 36 | } |