DFPlayer mini on Mega doesn't work for me

Projects General Guidance
1

I am having problems to get DFPlayer mini working on my arduino Mega.

Also tried to power the module externally as I read that the module can draw pretty much of the arduino supply due to the 3 Watts amp. Nothing.

Tried Arduino Nano / Uno / Mega

Both modules turns it's leds but really low, like you merely can see it.

I tried several serial pins and nothing ! I also tried two DFPlayers just in case...

Can't figure out what is wrong but the quality is really low. Soldering problems I guess? I've seen other cases of bad assembling or factory faulty connexions maybe.

My question is how can I know if the module is working despite the arduino?

Cheers

2

Hi,

Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png?

And a link to the DF Player please.

Thanks.. Tom.. :slight_smile:

3

Hi,

I tried many circuits with several arduinos. This one from dfrobot I tried last (Uno + DFPlayer).

My Goal is to add sound to a project based on (Mega + TinyRTC + TFT) so I added the player but as I wasn't getting any results I ended up With Arduino Uno and DFplayer. But still nothing.

Product link:
https://www.ebay.com.au/itm/TF-Card-U-Disk-Mini-MP3-Player-Audio-Voice-Module-For-Arduino-DFPlay-Mini-Board/282543858782?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

Circuit:

Product Picture:

getStarted.ino (3.41 KB)

20180123_134553.jpg
20180123_134553.jpg2462×2059 871 KB

4

Hi,

Can't figure out what is wrong but the quality is really low

So the project can play your selected sound but it is low volume, is that your problem?

Do you have a DMM?
Can you measure the supply voltage at the DF module please?
What is the impedance of your speaker?

Can you post your code please?

Thanks.. Tom.. :slight_smile:

5

Update:

Both modulos are not fried as they can play sound from sd.

So the problem is that I can't establish a serial conn with my arduino. Uno/Nano/Mega.

I attached the sketch to the previous post.

Cheers

6

Hi,
Please read the first post in any forum entitled how to use this forum.
http://forum.arduino.cc/index.php/topic,148850.0.html then look down to item #7 about how to post your code.
It will be formatted in a scrolling window that makes it easier to read.

Thanks.. Tom.. :slight_smile: