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Foundations and more This section guides you though some of the key elements of the Arduino hardware and software, and the concepts behind them. Hacking In this section you can find useful information to expand your knowledge about the Arduino platform.While browsing eBay looking for a module to play extended sound effects MP3 and WAV filesI came across these modules that looked like they would fit my purpose.
The module has been around for a few years and is based on the YX IC. As it turns out they are easy to use and produce a good sound in a small package. The downside is that there is not a huge lot of documentation for the board and the original is in Chinese. A copy of the official documentation I was able to find can be reached through this link.
So I decided to write a control library that would provide me with the interface I thought was needed. The audio files are stored on a micro SD card that plugs into a TF card socket on the back of the board. An example folder and file structure on the micro SD card might look like:. The documentation is unclear on this and seems to imply both situations. Communications is via asynchronous serial RS at bps, 8 data bits, No parity, 1 stop bit, no hardware flow control.
These are received and processed without a matching prior request. The Cmd field allows us to control the module. The official English documentation provides a set of valid command codes and the Chinese documentation provides an additional set of codes. All the commands I have discovered are collated in the table below. At its most basic, the library allows the processing of messages in the background while the application goes about its other business.
This is done with a polling mechanism check called once per loop cycle. The library can operate in synchronous or asynchronous mode. In synchronous mode, a call that sending a request message will include waiting for the response before returning, allowing a simple flow in the main application provided it can tolerate the delays.
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It only takes a minute to sign up. I have broken down the original code example to all I need - basically just one trigger to cycle play one folder. This does work in that it starts playing when I push the button connected to pin 7 it also displays the send command on the serial monitor :.
This, however, does not work. The wiring is exactly the same.Stative verbs list
It does display the play command being sent to the YX But the module does not start playing. As far as I am aware, I am using the exact same code for the player. I do not understand why the player won't start playing even though it receives the appropriate command:. Just for some background: This is my code for a light alarm which, instead of playing a sound, will turn on an LED gradually, simulating a sunrise.1981 matchbox cars
I features multiple buttons to set the alarm time, stop the alarm and, later, the music and to start playing music. Any hints on overall code architecture are also welcome this is my first Arduino project, I hadn't written a single line of code for ten years prior to this.
But my main concern is finding out where the bug is. My second concern is how to learn how to find out where the bug is. I assume you didn't wire the buttons to this pins yet.
Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. YX MP3 player Why is this code not working?Dnd tech tree
Ask Question. Asked 1 year, 7 months ago. Active 1 year, 7 months ago. Viewed times. Returns a byte data in HEX format.
Byte to convert to HEX. Returns a int from an HEX string. Do only if interval has passed. Greenonline 2, 7 7 gold badges 23 23 silver badges 41 41 bronze badges. Active Oldest Votes. Juraj Juraj Thank you. I would not have found that in ten years. Thank you for your time. You taught me to look out for theses kinds of conflicts. Sign up or log in Sign up using Google.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.Sacchi per lumido, il 36,2% non è compostabile
If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. These are often sold as "Catalex" Serial MP3 players. The audio files are stored on micro SD cards that plug into a TF card socket on the back of the board. If you like and use this library please consider making a small donation using PayPal. Skip to content.
Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Sign up. Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again. Latest commit Fetching latest commit….
If you like and use this library please consider making a small donation using PayPal Library Documentation. You signed in with another tab or window. Reload to refresh your session.
You signed out in another tab or window. More documentataion clarifications. May 12, First Check-in. Jul 15, Added photo.
MP3 Interface for Arduino: Cheap and Easy
Fixed Serial define issue. Sep 9, Added LCD player example. Apr 14, Fixed some issues with handling device initialization status messages…. Feb 23, Added optional checksum calculation in serial protocol. Jul 21, Added Simple player example.Replaces the analog switches with a 74HC SIngle layer board with large surface mount component design. Only 5 thru holes. Take a look. These players support MicroSD cards up to 8G, have a built in headphone amp, have built in volume control and Next and Previous control for stepping thru MP3 files.
You have to supply your own MicroSD card. And considering the low price, the sound quality is quite good. Better buy a few now If you need to add a little music or voice to your next Arduino project, this simple hack will get you there.
So here is how this works. The circuit also requires two analog switches to completely control all the front panel buttons. You load your sound files on to a MicroSd card and name them in a way so that they can be sequenced in the way you want.
I plan on following up with an EagleCad shield design. But for right now, its wires and solder and a little programming, so Arduinites can get going. Did you use this instructable in your classroom? Add a Teacher Note to share how you incorporated it into your lesson. These little guys are so cute and functional, it was hard to bring myself to open it up, but honestly, if I didn't do it So, first get a really small jeweler's Philips head screwdriver and remove the two screw on the white plastic side panel.
The panel will pop off when the screws are off. A small flat blade in the microsd slot.Playing Mp3 Files With Arduino (please read description!)
Be gentle! With the side off, you will be able to push out the other side. It is U-shaped. With the other side out, you will be able to push out the PCB and battery. Again, be slow and gentle. Now everything is out. Lets take a look at the circuit.
There is also a 3. I don't use the battery in this design ADKEY hardware random selection button function 8.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again.
Not all possible commands are available, due to many being redundant or not directly relevant to playing MP3 files. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Aimplified library for using yxbased serial MP3 players on Arduino.
Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again.Why does it sound like water is constantly running
Latest commit Fetching latest commit…. Arduino-yx Simplified library for using yxbased serial MP3 players on Arduino Limitations For some reason the yx doesn't like playing files smaller than kB.
You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.Basics: Project a. Attachments: sketch1sketch2.
In this project, you needed these parts Dear visitors. You can support our project buy clicking on the links of parts and buying them or donate us to keep this website alive. Thank you :. Arduino Uno R3 you can also use the other version of Arduino. Serial MP3 player module by Catalex 1pc. Jumper cables F-M, M-M. Micro SD card with adapter 1 pc. We will learn how to connect Serial MP3 player module to Arduino board and use it.
There is a TF card socket on board, so you can plug the micro SD card that stores audio files. MCU can control the MP3 playback state by sending commands to the module via UART port, such as switch songs, change the volume and play mode and so on.
Playbck indicator: Green light. If it is ready to play or it is paused, it keeps lighting. If playing, it blinks. Mounting holes: 4 screw mounting holes whose diameter is 2. You can read the manual English of Serial MP3 player v1. The following picture shows the needed connections with the Arduino Uno. Using Arduino board. Include library code. Choose which Arduino pins are going to be attached to the mp3 player and initialize the serial protocol.
All the commands needed are in the manual. And this is the actual function which builds the array. We just need to choose one of the defined commands and put the value of the data. Into the setup function we need to select the proper device for TF and give it time to settle asynchronous process magic.
In the loop, a simple play of the song labeled as set. Thank you for your comments. Please like our page on Facebook below and share. You can help us to keep this website alive by visiting us again. Thank you : 1. Arduino Uno R3 you can also use the other version of Arduino 2. Serial MP3 player module by Catalex 1pc 3. Jumper cables F-M, M-M 5.
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