Problem with dfplayer mini

Other Hardware Audio
1

hello, I'm trying to use a dfplayer mini module to play some .mp3 audio, I have an Arduino Leonardo connected through the Serial1 port with rx-tx cross communication, external power supply (5V 1,55A) and headphones, but I can't get more than beeps and screeches out of the module, Does anyone know what could be going on???

2

Could be your code that you forgot to post.

Or possibly an issue with your circuit... but you also forgot to post a schematic or diagram.

Wild guess... Do you have common GND between the device and the Arduino?

3

No, the source is common, it feeds both equipment correctly.

The circuit schematic is this:
https://images.app.goo.gl/b2ywzbfkZC9DXXK98

The code that is in the Arduino Leonardo is this:

//#include <SoftwareSerial.h>
#include <DFPlayer_Mini_Mp3.h>

//SoftwareSerial DFPlayerSerial(10, 11); // RX, TX
#define DFPlayerSerial Serial1

/*
mp3_play();      //start play
mp3_play(5);   //play "mp3/0005.mp3"
mp3_pause();
mp3_stop();
mp3_next();      
mp3_prev();

mp3_set_volume(uint16_t volume);   //0~30
mp3_set_EQ();   //0~5
void mp3_single_loop(boolean state);   //set single loop
void mp3_random_play();
*/

void setup()
{
   Serial.begin(9600);
   DFPlayerSerial.begin(9600);
   mp3_set_serial(DFPlayerSerial);
   mp3_set_volume(15);
}

void loop()
{
   mp3_play(1);
   delay(6000);
   mp3_next();
   delay(6000);
   mp3_prev();
   delay(6000);
   mp3_play(4);
   delay(6000);
}

I have 4 .mp3 with the nomenclature 0001.mp3 - 0004.mp3 in the root of the micro SD, which is in FAT32 format, and without label

4

forget about Leonardo, can you make it play by using IO/AdKey pins functionality?

5

no, I haven't tried it, but, in my application it has to be through rx-tx, although tomorrow I can try it, but I don't quite understand how it works

6

You can control the board manually, if it plays fine controlling it manually then the problem is in your sketch, if it doesn't play fine then the problem elsewhere

7

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.