jim hamblen / Mbed 2 deprecated LPC1768_HCSR04_HelloWorld

Sonar demo with timer interrupts

Dependencies:   HC_SR04_Ultrasonic_Library mbed

Fork of Nucleo_UltrasonicHelloWorld by EJ Teb

main.cpp@2:3566c2d1e86b, 2016-09-13 (annotated)

Committer:
4180_1
Date:
Tue Sep 13 18:16:42 2016 +0000
Revision:
2:3566c2d1e86b
Parent:
1:4a5586eb1765 
ver 1.0

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 {
4180_1 2:3566c2d1e86b 6 //put code here to execute when the distance has changed
4180_1 2:3566c2d1e86b 7 printf("Distance %d mm\r\n", distance);
ejteb 0:1704ea055c4f 8 }
ejteb 0:1704ea055c4f 9
4180_1 2:3566c2d1e86b 10 ultrasonic mu(p6, p7, .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 {
4180_1 2:3566c2d1e86b 16 mu.startUpdates();//start measuring 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 }