Component: Ultrasonic (HCSR04) (Audio)
| Author | Matrix TSL |
| Version | 1.0 (Release) |
| Category | Audio |
Contents
Ultrasonic (HCSR04) component
This board has both an ultrasonic transmitter and receiver. The transmitter is driven by an on-board 40KHz oscillator which is enabled by the host microprocessor. The receiving sensor signal is amplified and provided as an analogue signal to be processed by a single channel ADC of the microprocessor. By measuring the time delay between enabling a transmit pulse and receiving an echo the distance of objects in a range of around 3cm to 3m can be determined.
Examples
No additional examples
Downloadable macro reference
GetDistance
Sends a pulse and processes the echo.
Returns a object distance in cm
Parameters
- This macro has no parameters
Return value
Simulation macro reference
This component does not contain any simulation macros
Property reference
OutputTrig Pin
This property is of type Single digital pin and can be referenced with the variable name OPP.
Pin used for controlling the output pulse
Input Echo Pin
This property is of type Single digital pin and can be referenced with the variable name ECHO.
ADC channel used to monitor the echo
