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Published 20 hours ago • verified publisher icon wagiminator

Bill of materials

Open S-Snowball opened this issue 3 years ago • 11 comments

Hi,

do you have a f BOM with source where you can buy? I ordered a small OLED from Aliexpress, but this is not working with your code. I think the best is to use the same sources to order some.

S-Snowball avatar Dec 31 '20 12:12 S-Snowball

Hi, I also got my OLEDs from aliexpress (https://aliexpress.com/item/32957309383.html). Can you give me a more detailed description of the problem?

wagiminator avatar Dec 31 '20 12:12 wagiminator

Only the backlight is working. No text on the Display. And mp3 Player is also working, but without the Display.

I have the smaller 0.49 Display, Maybe is this the problem.

I order now the 0.96 Display.

Thanks a lot for the link

Am 31.12.2020 um 13:25 schrieb Stefan Wagner [email protected]:

 Hi, I also got my OLEDs from aliexpress (https://aliexpress.com/item/32957309383.html). Can you give me a more detailed description of the problem?

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S-Snowball avatar Dec 31 '20 13:12 S-Snowball

Then it will probably be the OLED. Presumably it has a different controller chip.

wagiminator avatar Jan 01 '21 10:01 wagiminator

As I am currently waiting for the display to be delivered, I have been giving it some more thought and have come up with 2 questions.

  1. is there a random function? That from all folders a random MP3 is played?

  2. can it display the song name?

S-Snowball avatar Jan 07 '21 09:01 S-Snowball

  1. Not in the current software version. Feel free to add such a feature, it shouldn't be too difficult.
  2. This is not possible because the DFPlayer module only understands folder and file numbers. You would have to include a table in the code that assigns a song name to the file number. However, this is much too cumbersome and you would have to change the code every time you change the content of the SD card.

wagiminator avatar Jan 07 '21 10:01 wagiminator

I will try do you have the circuit diagram only at EasyEDA? I would like to add something, but I have not yet worked with EasyEDA and find it a bit confusing in the first moment. Especially in the area of routing

S-Snowball avatar Jan 07 '21 14:01 S-Snowball

Sorry, I only use EasyEDA.

wagiminator avatar Jan 07 '21 17:01 wagiminator

Hi, unfortunately I didn't get to it before....

Could you possibly look at the circuit diagram, whether I have drawn correctly?

export

When Im finish, I will share eagle board and circuit with adjusted code.

S-Snowball avatar Feb 25 '21 20:02 S-Snowball

You forgot the 10k pull-up resistor on PB5. Without this resistor, a RESET is carried out each time a button is pressed.

wagiminator avatar Feb 26 '21 08:02 wagiminator

Hi,

the first board is soldered. Now when I turn on the MP3 player, I get this error.

!!!     ERROR     !!!
Check SD-Card andstart again !

My SD card has 2 GB and is formatted to FAT32. I also tested it with a 4GB card, but the same error.

Do you have any idea about this? Is it possible that the DFPlayer mini itself is broken?

S-Snowball avatar Mar 19 '21 19:03 S-Snowball

Hi, first make sure that your ATtiny is running at 8 MHz internal (set the correct fuses by "Burning bootloader" in the Arduino IDE) and that you are using the latest software version. If it's still not working, take a look at the other opened issue. It seems that there are different versions of the DFPlayer module. A different DFPlayer library might help.

wagiminator avatar Mar 19 '21 22:03 wagiminator