4180 LabTeam - Spring '18 / Mbed 2 deprecated Lab3Part1

Sensors with Distance

Dependencies:   HC_SR04_Ultrasonic_Library mbed

Fork of LPC1768_HCSR04_HelloWorld by jim hamblen

Diff: main.cpp

Revision:
3:65b2a102e23e
Parent:
2:3566c2d1e86b
--- a/main.cpp	Tue Sep 13 18:16:42 2016 +0000
+++ b/main.cpp	Wed Feb 28 09:55:03 2018 +0000
@@ -1,10 +1,14 @@
 #include "mbed.h"
 #include "ultrasonic.h"
 
+
+Serial pc(USBTX, USBRX);
  void dist(int distance)
 {
     //put code here to execute when the distance has changed
-    printf("Distance %d mm\r\n", distance);
+    float feet_distance = distance * 0.00328084f;
+    pc.printf("Distance %d mm\rt\n", distance);
+    pc.printf("Distance %.5f ft\r\n", feet_distance);
 }
 
 ultrasonic mu(p6, p7, .1, 1, &dist);    //Set the trigger pin to D8 and the echo pin to D9