MP3 player

Introduction

The ESP module can control the MP3-player module "DRPlayer Mini (DFR0299/YX5200)" and the "YX5300" module with 3.5mm output for speaker(s). Other than MP3 (sampling frequencies up to 48kHz) WAV files are also supported. The file names can be whatever but if you would like to be sure to play the correct file you should use the following name schema:

0001.mp3, 0002.mp3, 0003.mp3 ... 2999.mp3, 3000.mp3

Hardware

Circuit wiring:

    ESP            Mp3 board
    GPIO    <-->   RX*

    Power
    3.3V    <-->   VCC (can be >100mA)
    GND     <-->   GND

    DRPlayer Mini setup below...

    Speaker
    Red     <-->   SPK_1
    Black   <-->   SPK_2

    LED
    LED**   <-->   BUSY

*note that the TX on the mp3-module is not used!
**optional, if you want a LED to indicate playback (low active).

DRPlayer Mini Pinout

ESP Easy

Use the device tab on the ESP Easy webinterface and create a new task by editing one of the available tasks. Select "Notify - " from the dropdown box.

Enter the GPIO pin for serial TX.

Example on how to play a track

HTTP

http://<ESP IP address>/control?cmd=play,14

This plays track number 14. The song will be stopped once completed.

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Rules

You can also use these from rules. This example plays a track (255) on boot, with a given volume (10), plays it for a period (30s) and then stops.

 On System#Boot do 
   vol,10
   play,255
   delay,30 //play the song for 30 seconds (this is a generic command!)
   stop
 endon

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MQTT

Topic:

 <unit name>/cmd

Payload/message:

 play,188

This will play the song number 188.

Commands

Command	Value	Extra information
play,<value>	1...3000	Plays the n-th track 1...3000 on SD-card in root folder. The track number is the physical order - not the order displayed in file explorer! (The track will be played once and then stopped.)
stop	-	Stops actual playing sound.
vol,<value>	1...30	Set volume level.
eq,<value>	0...5	Set the equalizer type (IS NOT SUPPORTED BY YX5300) 0=Normal 1=Pop 2=Rock 3=Jazz 4=Classic 5=Base