main.cpp

00001 #include "mbed.h"
00002 #include "ultrasonic.h"
00003 
00004 Serial pc(USBTX, USBRX); // tx, rx
00005 
00006  void dist(int distance)
00007 {
00008     //put code here to happen when the distance is changed
00009     pc.printf("Distance changed to %dmm\r\n", distance);
00010     //pc.printf("Distance changed!\n");
00011     //printf("Distance changed!\r\n");
00012 }
00013 
00014 //ultrasonic mu(D8, D9, .1, 1, &dist);    //Set the trigger pin to D8 and the echo pin to D9
00015                                         //have updates every .1 seconds and a timeout after 1
00016                                         //second, and call dist when the distance changes
00017                                         
00018 ultrasonic mu(p30, p29, .1, 1, &dist);    //Set the trigger pin to D30 and the echo pin to D29
00019                                         //have updates every .1 seconds and a timeout after 1
00020                                         //second, and call dist when the distance changes
00021                                         
00022 //Other sensors can be declared here. 
00023 //ultrasonic nu(pwhatever, pwhatever, .1, 1, &distNu);
00024 //Then we can have multiple independent sensors that each are interrupt driven? 
00025 //I'm worried that I don't understand enough about interrupts and counting that this will work.
00026 
00027 int main()
00028 {
00029     mu.startUpdates();//start measuring the distance
00030     while(1)
00031     {
00032         //Do something else here
00033         mu.checkDistance();     //call checkDistance() as much as possible, as this is where
00034                                 //the class checks if dist needs to be called.
00035     }
00036 }