Speaker Class Reference

API for the Speaker. More...

Detailed Description

• ID: speaker libupm-speaker
• Name: Speaker
• Other Names: Grove Speaker
• Category: sound
• Manufacturer: seeed
• Connection: gpio
• Kit: hak

UPM module for the Speaker. This sensor can generate different tones and sounds depending on the frequency of the input signal.

  // Instantiate a Speaker on digital pin D2
  upm::Speaker* speaker = new upm::Speaker(2);

  // Play all 7 of the lowest notes
  speaker->playAll();

  // Play a medium C-sharp
  speaker->playSound('c', true, "med");

Public Member Functions
	Speaker (int pin)
	~Speaker ()
void	playAll ()
void	playSound (char letter, bool sharp, std::string vocalWeight)

Constructor & Destructor Documentation

Speaker

(

int

pin

)

Speaker constructor

Parameters

pin	Digital pin to use

~Speaker

(

)

Speaker destructor

Member Function Documentation

void playAll

(

)

Plays all alto notes (lowest notes)

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void playSound	(	char	letter,
		bool	sharp,
		std::string	vocalWeight
	)

Plays a sound and a note whether it's sharp or not

Parameters

letter	Character name of the note ('a', 'b', 'c', 'd', 'e', 'f', or 'g')
sharp	If true, plays a sharp version of the note; otherwise, does not play the note
vocalWeight	String to determine whether to play a low ("low"), a medium ("med"), or a high ("high") note

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The documentation for this class was generated from the following files:

• /iotdk/jenkins/workspace/upm-doc-stable/src/speaker/speaker.hpp
• /iotdk/jenkins/workspace/upm-doc-stable/src/speaker/speaker.cxx