Diff: distanceSensors.cpp

Revision:

0:e1e981676769

Child:

1:558bf026649c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/distanceSensors.cpp	Thu Mar 09 21:15:35 2017 +0000
@@ -0,0 +1,45 @@
+#include <cmath>
+#include "Distance_Sensors.h"
+
+
+
+DistanceSensors::DistanceSensors() 
+{
+}
+    
+DistanceSensors::DistanceSensors(AnalogIn* sensorVoltage, DigitalOut* bit0, DigitalOut* bit1, DigitalOut* bit2, int number)
+{   
+    init(sensorVoltage, bit0, bit1, bit2, number);
+}
+
+//initialise
+void DistanceSensors::init(AnalogIn* sensorVoltage, DigitalOut* bit0, DigitalOut* bit1, DigitalOut* bit2, int number)
+{
+    this->sensorVoltage = sensorVoltage;
+    this->bit0 = bit0;
+    this->bit1 = bit1;
+    this->bit2 = bit2;    
+}
+
+
+DistanceSensors::~DistanceSensors()
+{ 
+}
+
+
+float DistanceSensors::read()//Return the distance of an object
+{  
+    *bit0 = number & 1; // Set the first bit of the Sensors MUX
+    *bit1 = number & 2; // Set the second bit of the Sensors MUX
+    *bit2 = number & 4; // Set the third bit of the Sensors MUX
+    
+float Usensor=sensorVoltage->read(); //Read the Voltage from the selected distance sensor   
+float Distance=-0.38f*sqrt(Usensor)+0.38f;
+    return Distance;
+}
+
+DistanceSensors::operator float()
+{ 
+    return read();
+}
+