Sonar Proximity Audio Alert for Robot
Dependencies: HC_SR04_Ultrasonic_Library Motor mbed-rtos mbed
Fork of rtos_basic by
Speaker.h
- Committer:
- juubs
- Date:
- 2017-03-13
- Revision:
- 12:42d63181dbdb
File content as of revision 12:42d63181dbdb:
#include "mbed.h" // a new class to play a note on Speaker based on PwmOut class class Speaker { public: Speaker(PinName pin) : _pin(pin) { // _pin(pin) means pass pin to the Speaker Constructor } // class method to play a note based on PwmOut class void PlayNote(float frequency, float duration, float volume) { _pin.period(1.0/frequency); _pin = volume/2.0; wait(duration); _pin = 0.0; } private: PwmOut _pin; };