Diff: ultrasonic_buggy.h

Revision:

1:80c2ef16a42f

Parent:

0:fbceffb594b6

--- a/ultrasonic_buggy.h	Thu Jul 14 12:58:48 2016 +0000
+++ b/ultrasonic_buggy.h	Mon Jul 18 10:00:29 2016 +0000
@@ -24,18 +24,18 @@
 #define LEFT_ECHO_PIN P1_20
 #define RIGHT_ECHO_PIN P0_12
 
-#define SPEED_OF_SOUND 340      //speed of sound =~340m/s at standard conditions
+#define SPEED_OF_SOUND 340          //speed of sound =~340m/s at standard conditions
 
 /* these are function prototypes that declare all the functions
 in the library.*/
-extern void forward(float); //Move the buggy forward for (float) seconds
-extern void left(float); //Turn left for (float) seconds
-extern void right(float); //Turn right for (float) seconds
-extern void hold(float); //Hold the buggy in an idle state for (float) seconds
-extern void stop(); //Stop all motors
+extern void forward(float);         //Move the buggy forward for (float) seconds
+extern void left(float);            //Turn left for (float) seconds
+extern void right(float);           //Turn right for (float) seconds
+extern void hold(float);            //Hold the buggy in an idle state for (float) seconds
+extern void stop();                 //Stop all motors
 
-extern float getDistance_l(void);
-extern float getDistance_r(void);
-void resetSR04(void);
+extern float getDistance_l(void);   //get a distance reading in metres from the left sensor
+extern float getDistance_r(void);   //get a distance reading in metres from the right sensor
+void resetSR04(void);               //reset both ultrasonic modules
 
 #endif // BUGGY_FUNCTIONS_H
\ No newline at end of file