Cat Teacup / Mbed 2 deprecated Nucleo_UltrasonicHelloWorld

ultrasonic sensors for roboticized zuca project

Dependencies:   HC_SR04_Ultrasonic_Library mbed

Fork of Nucleo_UltrasonicHelloWorld by EJ Teb

main.cpp@3:d0e45e12a03f, 2017-07-21 (annotated)

Committer:
Abraxas3d
Date:
Fri Jul 21 17:57:01 2017 +0000
Revision:
3:d0e45e12a03f
Parent:
2:1673deaeefad 
Put in comment and question about supporting multiple ultrasonic sensors on the mBed.

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
Abraxas3d 2:1673deaeefad 4 Serial pc(USBTX, USBRX); // tx, rx
Abraxas3d 2:1673deaeefad 5
ejteb 0:1704ea055c4f 6 void dist(int distance)
ejteb 0:1704ea055c4f 7 {
ejteb 1:4a5586eb1765 8 //put code here to happen when the distance is changed
Abraxas3d 2:1673deaeefad 9 pc.printf("Distance changed to %dmm\r\n", distance);
Abraxas3d 2:1673deaeefad 10 //pc.printf("Distance changed!\n");
Abraxas3d 2:1673deaeefad 11 //printf("Distance changed!\r\n");
ejteb 0:1704ea055c4f 12 }
ejteb 0:1704ea055c4f 13
Abraxas3d 2:1673deaeefad 14 //ultrasonic mu(D8, D9, .1, 1, &dist); //Set the trigger pin to D8 and the echo pin to D9
Abraxas3d 2:1673deaeefad 15 //have updates every .1 seconds and a timeout after 1
Abraxas3d 2:1673deaeefad 16 //second, and call dist when the distance changes
Abraxas3d 2:1673deaeefad 17
Abraxas3d 2:1673deaeefad 18 ultrasonic mu(p30, p29, .1, 1, &dist); //Set the trigger pin to D30 and the echo pin to D29
ejteb 1:4a5586eb1765 19 //have updates every .1 seconds and a timeout after 1
ejteb 1:4a5586eb1765 20 //second, and call dist when the distance changes
Abraxas3d 3:d0e45e12a03f 21
Abraxas3d 3:d0e45e12a03f 22 //Other sensors can be declared here.
Abraxas3d 3:d0e45e12a03f 23 //ultrasonic nu(pwhatever, pwhatever, .1, 1, &distNu);
Abraxas3d 3:d0e45e12a03f 24 //Then we can have multiple independent sensors that each are interrupt driven?
Abraxas3d 3:d0e45e12a03f 25 //I'm worried that I don't understand enough about interrupts and counting that this will work.
ejteb 0:1704ea055c4f 26
ejteb 0:1704ea055c4f 27 int main()
ejteb 0:1704ea055c4f 28 {
Abraxas3d 2:1673deaeefad 29 mu.startUpdates();//start measuring the distance
ejteb 0:1704ea055c4f 30 while(1)
ejteb 0:1704ea055c4f 31 {
ejteb 1:4a5586eb1765 32 //Do something else here
ejteb 1:4a5586eb1765 33 mu.checkDistance(); //call checkDistance() as much as possible, as this is where
ejteb 1:4a5586eb1765 34 //the class checks if dist needs to be called.
ejteb 0:1704ea055c4f 35 }
ejteb 0:1704ea055c4f 36 }