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HCSR04 Class Reference
#include <hcsr04.h>
Public Member Functions | |
| HCSR04 (PinName TrigPin, PinName EchoPin) | |
| Create a HCSR04 object connected to the specified pin. | |
| float | get_dist_cm (void) |
| Return the distance from obstacle in cm. | |
| float | get_pulse_us (void) |
| Return the pulse duration equal to sonic waves travelling to obstacle and back to receiver. | |
| void | start (void) |
| Generates the trigger pulse of 10us on the trigger PIN. | |
Detailed Description
HCSR04 Class(es)
Definition at line 32 of file hcsr04.h.
Constructor & Destructor Documentation
| HCSR04 | ( | PinName | TrigPin, |
| PinName | EchoPin | ||
| ) |
Create a HCSR04 object connected to the specified pin.
- Parameters:
-
pin i/o pin to connect to
Definition at line 5 of file hcsr04.cpp.
Member Function Documentation
| float get_dist_cm | ( | void | ) |
Return the distance from obstacle in cm.
- Parameters:
-
distance in cms and returns -1, in case of failure
Definition at line 47 of file hcsr04.cpp.
| float get_pulse_us | ( | void | ) |
Return the pulse duration equal to sonic waves travelling to obstacle and back to receiver.
- Parameters:
-
pulse duration in microseconds.
Definition at line 51 of file hcsr04.cpp.
| void start | ( | void | ) |
Generates the trigger pulse of 10us on the trigger PIN.
Definition at line 23 of file hcsr04.cpp.
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