Example Code for Arduino-Voice Prompt Control
Hardware Preparation
- DFRduino UNO R3 (or similar) x 1
- MP3 Voice prompter x1
Software Preparation
- Arduino IDE
- Download and install the DFRobot_SerialMP3 library
- How to install the library?
Wiring Diagram
Other Preparation Work
- Connect the module to the UNO controller according to the wiring diagram above. Of course, you can also use an expansion board for a more convenient and quicker prototype construction.
- Download and install the DFRobot_SerialMP3 library.
- Open the Arduino IDE, upload the following code to the UNO controller.
- Open the serial monitor of the Arduino IDE, adjust the baud rate to 115200, and observe the serial print results.
Sample Code
Loop play
/*!
*@file playAllMusic.ino
*@brief This is a demo for looping playback of built-in music.
* ---------------------------------------------------------------------------------------------------------------
* board | MCU | Leonardo/Mega2560/M0 | UNO | ESP8266 | ESP32 | microbit |
* VCC | 3.3V/5V | VCC | VCC | VCC | VCC | X |
* GND | GND | GND | GND | GND | GND | X |
* RX | TX | Serial1 TX1 | 5 | 5/D6 | D2 | X |
* TX | RX | Serial1 RX1 | 4 | 4/D7 | D3 | X |
* ---------------------------------------------------------------------------------------------------------------
*
* @copyright Copyright (c) 2024 DFRobot Co.Ltd (http://www.dfrobot.com)
* @license The MIT License (MIT)
* @author [TangJie]([email protected])
* @version V1.0
* @date 2024-11-22
* @url https://github.com/DFRobot/DFRobot_SerialMP3
*/
#include "DFRobot_SerialMP3.h"
#if defined(ARDUINO_AVR_UNO)||defined(ESP8266)
#include <SoftwareSerial.h>
#endif
#if defined(ARDUINO_AVR_UNO)||defined(ESP8266)
SoftwareSerial mySerial(/*rx =*/4, /*tx =*/5);
DFRobot_SerialMP3 mp3(/*s =*/&mySerial);
#else
DFRobot_SerialMP3 mp3(/*s =*/&Serial1);
#endif
void setup()
{
#if defined(ARDUINO_AVR_UNO)||defined(ESP8266)
mySerial.begin(9600);
#elif defined(ESP32)
Serial1.begin(9600, SERIAL_8N1, /*rx =*/D3, /*tx =*/D2);
#else
Serial1.begin(9600);
#endif
Serial.begin(115200);
///< Reset the device
mp3.reset();
delay(1000);
///< Detect the device
while(mp3.getVersion() == 0){
Serial.println("not fount device !!!");
delay(100);
}
///< Set volume
mp3.volumeSet(10);
delay(10);
///< Start playing
mp3.startPlay();
delay(10);
}
void loop()
{
///< Wait for 10 seconds of playback
delay(10000);
mp3.next();
}
Result
Looping audio playlist
Set module function
/*!
*@file playMusicSet.ino
*@brief This is an example code for setting up the module.
* ---------------------------------------------------------------------------------------------------------------
* board | MCU | Leonardo/Mega2560/M0 | UNO | ESP8266 | ESP32 | microbit |
* VCC | 3.3V/5V | VCC | VCC | VCC | VCC | X |
* GND | GND | GND | GND | GND | GND | X |
* RX | TX | Serial1 TX1 | 5 | 5/D6 | D2 | X |
* TX | RX | Serial1 RX1 | 4 | 4/D7 | D3 | X |
* ---------------------------------------------------------------------------------------------------------------
*
* @copyright Copyright (c) 2024 DFRobot Co.Ltd (http://www.dfrobot.com)
* @license The MIT License (MIT)
* @author [TangJie]([email protected])
* @version V1.0
* @date 2024-11-22
* @url https://github.com/DFRobot/DFRobot_SerialMP3
*/
#include "DFRobot_SerialMP3.h"
#if defined(ARDUINO_AVR_UNO)||defined(ESP8266)
#include <SoftwareSerial.h>
#endif
#if defined(ARDUINO_AVR_UNO)||defined(ESP8266)
SoftwareSerial mySerial(/*rx =*/4, /*tx =*/5);
DFRobot_SerialMP3 mp3(/*s =*/&mySerial);
#else
DFRobot_SerialMP3 mp3(/*s =*/&Serial1);
#endif
void setup()
{
#if defined(ARDUINO_AVR_UNO)||defined(ESP8266)
mySerial.begin(9600);
#elif defined(ESP32)
Serial1.begin(9600, SERIAL_8N1, /*rx =*/D3, /*tx =*/D2);
#else
Serial1.begin(9600);
#endif
Serial.begin(115200);
///< Reset the device
mp3.reset();
delay(1000);
///< Detect the device
while(mp3.getVersion() == 0){
Serial.println("not fount device !!!");
delay(100);
}
///< Set volume
mp3.volumeSet(10);
///<start play
mp3.startPlay();
delay(10000);
///<stop play
mp3.pausePlay();
delay(100);
///< Set single track loop
mp3.specifyLoop(3);
delay(10);
}
void loop()
{
delay(1000);
}
Result
This is an example code for setting up the module
Get module parameters
/*!
*@file playState.ino
*@brief This is an example code for getting the module.
* ---------------------------------------------------------------------------------------------------------------
* board | MCU | Leonardo/Mega2560/M0 | UNO | ESP8266 | ESP32 | microbit |
* VCC | 3.3V/5V | VCC | VCC | VCC | VCC | X |
* GND | GND | GND | GND | GND | GND | X |
* RX | TX | Serial1 TX1 | 5 | 5/D6 | D2 | X |
* TX | RX | Serial1 RX1 | 4 | 4/D7 | D3 | X |
* ---------------------------------------------------------------------------------------------------------------
*
* @copyright Copyright (c) 2024 DFRobot Co.Ltd (http://www.dfrobot.com)
* @license The MIT License (MIT)
* @author [TangJie]([email protected])
* @version V1.0
* @date 2024-11-22
* @url https://github.com/DFRobot/DFRobot_SerialMP3
*/
#include "DFRobot_SerialMP3.h"
#if defined(ARDUINO_AVR_UNO)||defined(ESP8266)
#include <SoftwareSerial.h>
#endif
#if defined(ARDUINO_AVR_UNO)||defined(ESP8266)
SoftwareSerial mySerial(/*rx =*/4, /*tx =*/5);
DFRobot_SerialMP3 mp3(/*s =*/&mySerial);
#else
DFRobot_SerialMP3 mp3(/*s =*/&Serial1);
#endif
void setup()
{
#if defined(ARDUINO_AVR_UNO)||defined(ESP8266)
mySerial.begin(9600);
#elif defined(ESP32)
Serial1.begin(9600, SERIAL_8N1, /*rx =*/D3, /*tx =*/D2);
#else
Serial1.begin(9600);
#endif
Serial.begin(115200);
///< Reset the device
mp3.reset();
delay(1000);
///< Detect the device
while(mp3.getVersion() == 0){
Serial.println("not fount device !!!");
delay(100);
}
///< Set volume
mp3.volumeSet(5);
delay(10);
///< Set single song loop
mp3.specifyLoop(1);
delay(10);
}
void loop()
{
///< Get version number
Serial.print("Version:");
Serial.println(mp3.getVersion());
///< Get playback status
Serial.print("Play State:");
Serial.println(mp3.getState());
///< Get current song sequence number
Serial.print("File number:");
Serial.println(mp3.getFileNumber());
///< Get total number of files in built-in storage
Serial.print("All file number:");
Serial.println(mp3.getFile());
delay(1000);
}
Result
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