Arduino Quick Start
2. Devices & Examples
3. M5Unified
5. Extensions & Examples
Atom DTU
Hat
Basic/Fire/Gray/M5GO Speaker
Class Name: Speaker
begin()
Description:
Initializes the speaker.
Syntax:
void begin();Note:
1. If you do not want to initialize the speaker with M5.begin(), please call this function before using the speaker.
1. If you do not want to initialize the speaker with M5.begin(), please call this function before using the speaker.
Example:
cpp
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#include <M5Stack.h> void setup(){ M5.Speaker.begin(); // Initialize the speaker M5.Speaker.tone(661, 1000); // Set the speaker to sound at 661Hz for 1000ms} void loop(){ M5.Speaker.update(); delay(100);}end()
Description:
Stops the speaker.
Syntax:
void end();Example:
cpp
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#include <M5Stack.h> void setup(){ M5.begin();} void loop(){ M5.update(); if(M5.BtnA.wasPressed()) { // If button A was pressed M5.Speaker.tone(661); // Set the speaker to continuously sound at 661Hz }else if(M5.BtnB.wasPressed()){ M5.Speaker.end(); // Turn off the speaker } delay(100);}update()
Description:
Outputs the speaker's settings.
Syntax:
void update();Note:
This needs to be used in conjunction with the sound-making function to produce sound from the M5Core.
This needs to be used in conjunction with the sound-making function to produce sound from the M5Core.
Example:
cpp
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#include <M5Stack.h> void setup(){ M5.Speaker.begin(); // Initialize the speaker M5.Speaker.tone(661, 1000); // Set the speaker to sound at 661Hz for 1000ms} void loop(){ M5.Speaker.update(); delay(100);}tone()
Description:
Sets the speaker to sound at a frequency for a duration in milliseconds.
Syntax:
void tone(uint16_t frequency);void tone(uint16_t frequency, uint32_t duration);| Parameter | Type | Description |
|---|---|---|
| frequency | uint16_t | Speaker frequency |
| duration | uint32_t | Duration of sound (ms) |
Example:
cpp
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#include <M5Stack.h> void setup(){ M5.begin();} void loop(){ M5.update(); if(M5.BtnA.wasPressed()) { // If button A was pressed M5.Speaker.tone(661, 200); // Set the speaker to sound at 661Hz for 200ms }else if(M5.BtnB.wasPressed()){ M5.Speaker.tone(112); // Set the speaker to continuously sound at 112Hz }else if(M5.BtnC.wasPressed()){ M5.Speaker.end(); // Turn off the speaker } delay(100);}setVolume()
Description:
Sets the volume.
Syntax:
void setVolume(uint8_t volume);| Parameter | Type | Description |
|---|---|---|
| volume | uint8_t | Volume (0~11) |
Example:
cpp
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#include <M5Stack.h>char i = 0;void setup(){ M5.begin(); M5.Speaker.begin();} void loop(){ M5.update(); if(M5.BtnA.wasPressed()) { // If button A was pressed M5.Speaker.tone(661, 200); // Set the speaker to sound at 661Hz for 200ms }else if(M5.BtnC.wasPressed()){ M5.Speaker.setVolume(i++); // Set the speaker volume } delay(100);}