EJ Teb / Mbed 2 deprecated Nucleo_UltrasonicHelloWorld

A hello world program for the HC-SR04

Dependencies:   HC_SR04_Ultrasonic_Library mbed

main.cpp@1:4a5586eb1765, 2014-12-04 (annotated)

Committer:
ejteb
Date:
Thu Dec 04 08:04:55 2014 +0000
Revision:
1:4a5586eb1765
Parent:
0:1704ea055c4f 
HC-SR04 hello world

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ejteb 0:1704ea055c4f 1 #include "mbed.h"
ejteb 0:1704ea055c4f 2 #include "ultrasonic.h"
ejteb 0:1704ea055c4f 3
ejteb 0:1704ea055c4f 4 void dist(int distance)
ejteb 0:1704ea055c4f 5 {
ejteb 1:4a5586eb1765 6 //put code here to happen when the distance is changed
ejteb 1:4a5586eb1765 7 printf("Distance changed to %dmm\r\n", distance);
ejteb 0:1704ea055c4f 8 }
ejteb 0:1704ea055c4f 9
ejteb 1:4a5586eb1765 10 ultrasonic mu(D8, D9, .1, 1, &dist); //Set the trigger pin to D8 and the echo pin to D9
ejteb 1:4a5586eb1765 11 //have updates every .1 seconds and a timeout after 1
ejteb 1:4a5586eb1765 12 //second, and call dist when the distance changes
ejteb 0:1704ea055c4f 13
ejteb 0:1704ea055c4f 14 int main()
ejteb 0:1704ea055c4f 15 {
ejteb 1:4a5586eb1765 16 mu.startUpdates();//start mesuring the distance
ejteb 0:1704ea055c4f 17 while(1)
ejteb 0:1704ea055c4f 18 {
ejteb 1:4a5586eb1765 19 //Do something else here
ejteb 1:4a5586eb1765 20 mu.checkDistance(); //call checkDistance() as much as possible, as this is where
ejteb 1:4a5586eb1765 21 //the class checks if dist needs to be called.
ejteb 0:1704ea055c4f 22 }
ejteb 0:1704ea055c4f 23 }