UCL IoT / Mbed 2 deprecated nRF_buttons

Code to demonstrate use of the two buttons to toggle LED's

Dependencies:   mbed

Simple code to demonstrate the use of buttons to toggle LEDs on and off.

main.cpp@0:f932320f7606, 2014-12-12 (annotated)

Committer:
djmannion
Date:
Fri Dec 12 09:01:15 2014 +0000
Revision:
0:f932320f7606
Child:
1:0133472f4825
Button Demo

Who changed what in which revision?

UserRevisionLine numberNew contents of line
djmannion 0:f932320f7606 1 /*
djmannion 0:f932320f7606 2 This code uses the button1 to toggle LED1 and button2 to toggle LED2
djmannion 0:f932320f7606 3 Author: Dan M
djmannion 0:f932320f7606 4 Date Created: 12.12.2014
djmannion 0:f932320f7606 5 Last Update: 12.12.2014
djmannion 0:f932320f7606 6 */
djmannion 0:f932320f7606 7 #include "mbed.h"
djmannion 0:f932320f7606 8 //Define pin names and numbers ( I know these probably aren't needed but I put them in to demonstrate pin numbers)
djmannion 0:f932320f7606 9 #define LED1 p18
djmannion 0:f932320f7606 10 #define LED2 p19
djmannion 0:f932320f7606 11 #define SW1 p16
djmannion 0:f932320f7606 12 #define SW2 p17
djmannion 0:f932320f7606 13 //Instantiate IO objects
djmannion 0:f932320f7606 14 DigitalOut led_1(LED1);
djmannion 0:f932320f7606 15 DigitalOut led_2(LED2);
djmannion 0:f932320f7606 16 DigitalIn sw_1(SW1);
djmannion 0:f932320f7606 17 DigitalIn sw_2(SW2);
djmannion 0:f932320f7606 18
djmannion 0:f932320f7606 19 int main() {
djmannion 0:f932320f7606 20 led_1=0;
djmannion 0:f932320f7606 21 led_2=0;
djmannion 0:f932320f7606 22 while(1) {
djmannion 0:f932320f7606 23 if(!sw_1)
djmannion 0:f932320f7606 24 {
djmannion 0:f932320f7606 25 led_1=!led_1;
djmannion 0:f932320f7606 26 wait(0.25); //Button Debounce ;)
djmannion 0:f932320f7606 27 }
djmannion 0:f932320f7606 28 if(!sw_2)
djmannion 0:f932320f7606 29 {
djmannion 0:f932320f7606 30 led_2=!led_2;
djmannion 0:f932320f7606 31 wait(0.25); //Button Debounce ;)
djmannion 0:f932320f7606 32 }
djmannion 0:f932320f7606 33 }
djmannion 0:f932320f7606 34 }