Diff: ultrasonic.h

Revision:

95:250afd53b710

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ultrasonic.h	Sat Jun 08 12:00:38 2019 +0000
@@ -0,0 +1,61 @@
+#ifndef MBED_ULTRASONIC_H
+#define MBED_ULTRASONIC_H
+
+#include "mbed.h"
+
+class Ultrasonic
+{
+public:
+    /**iniates the class with the specified trigger pin, echo pin, update speed and timeout**/
+    Ultrasonic(PinName trigPin, PinName echoPin, float timeout = 0.1, bool mode = false, float time = 0.1);
+
+    ~Ultrasonic();
+
+    // generate 10 us trig signal
+    void trig(void);
+
+    // return distance in cm and return -1 in case of failure
+    int  getDistance(void);
+    
+    void calculateDistance(void);
+
+    // return the echo pulse duration in us and return -1 in case of failure
+    int  getPulseDuration(void);
+
+    // get a status whether measurement is done or not
+    int  getStatus(void);
+
+    // clear the status that represents measurement-done.
+    void clearStatus(void);
+
+    // stop measuring
+    void pauseMeasure(void);
+    
+    
+    void setMode(bool mode);
+    
+    void printDistance(float interval);
+    
+
+private:
+    DigitalOut  _trig;
+    InterruptIn _echo;
+    Timer   _timer;
+    Timeout _timeout;
+    Ticker  _t;
+    float   _toVal; // timeout value in sec, or retriig time in sec if repeat == true
+    float   _repeatD;
+    bool    _repeat;
+    int     _distance;
+    int     _pulseDuration;
+    int     _start;
+    int     _end;
+    int     _break;
+    void _startT(void);
+    void _endT(void);
+    void _timeout_cb(void);
+    int _done;  // end of measure
+    RawSerial _pc;
+};
+#endif /* ifndef MBED_ULTRASONIC_H */
+