Diff: HCSR04.h

Revision:

4:aae70f15357f

Parent:

3:9a7899cf5e3a

Child:

5:a667b621f625

diff -r 9a7899cf5e3a -r aae70f15357f HCSR04.h
--- a/HCSR04.h	Sun Dec 06 15:13:54 2015 +0000
+++ b/HCSR04.h	Mon Dec 07 09:37:21 2015 +0000
@@ -29,11 +29,32 @@
      */
     HCSR04(PinName echoPin, PinName triggerPin);
     
-    /** Calculates the distance in cm, with the calculation time of 25 ms.
+    /** Calculates the distance in cm, with the calculation time of approximatelly 23.7 ms.
      * @returns distance of the measuring object in cm.
      */
     float getDistance_cm();
     
+    /** Calculates the distance in mm, with the calculation time of approximatelly 23.7 ms.
+     * @returns distance of the measuring object in mm.
+     */
+    float getDistance_mm();
+    
+    /** Sets the minimum and maximum ranges between the factory values of 2 cm and 400 cm.
+     *  @param minRange Minimum range in cm. Must be between 2 cm and maxRange.
+     *  @param maxRange Maximum range in cm. Must be between minRange and 400 cm.
+     */
+    void setRanges(float minRange, float maxRange);
+    
+    /** Retreives the minimum sensor range set by the user.
+     * @returns the minimum sensor range set by the user in cm.
+     */
+    float getMinRange();
+    
+    /** Retreives the maximum sensor range set by the user.
+     * @returns the maximum sensor range set by the user in cm.
+     */
+    float getMaxRange();
+    
     private:
     
     InterruptIn echo;       // echo pin