Lately I noticed that some examples in my Arduino Audio Tools library are not compiling any more. This is not a surprise, since the library is still evolving. So I was looking for a way how to identify the broken examples automatically. Fortunately Arduino provides a Command Line Interface and Read more…
In the last Blogs I presented a File Based Versatile MP3 Player and later a A Versatile but Simple Arduino Streaming MP3 Player using my Arduino Audio Tools Library. In this Blog, I will demonstrate how easy it is to convert it into a AAC player. I also show how Read more…
In the last blogs I presented a Versatile MP3 Player and then a Basic Streaming MP3 Player using my Arduino Audio Tools Library. If you expect a Versatile Streaming MP3 Player, you will not be disappointed. All the functionality related to the AudioPlayer class which was described in the Versatile Read more…
Yesterday I was finally resolving some stability issues in my URLStream class and I wanted to take the opportunity to highlight that it is pretty simple to build a simple mp3 streaming audio player using the Stream API of my Arduino Audio Tools library. You just need to copy the Read more…
It is pretty simple to build a simple mp3 audio player using the Stream API of my Arduino Audio Tools library: A SD file is a subclass of an Arduino Stream, so all you need to do is to copy from the file to the desired output stream. when we Read more…
Today I was testing my Arduino Audio Tools project with PlatformIO on an ESP32 because I was really looking forward to be able to use a proper Debugger. Unfortunately I was stumbling over the fact that, while Arduino is using now the latest IDF version, the PlatformIO ESP32 Arduino implementation Read more…
Quite some time ago I was blogging about the hw-627 motor controller. So I was wondering if I could also use this module as well to play music and drive a small speaker. This would be cool because we could get stereo output since the module supports two output devices. Read more…
I have extended my arduino-audio-tools project to provide access to MP3 Meta Data. ID3 is the metadata container which is most often used in conjunction with the MP3 audio file format. It allows information such as the title, artist, album, track number, and other information about the file to be Read more…
The ESP32 Microcontroller from Espressif provides a Bluetooth A2DP functionality that can receive sound data e.g. from your Mobile Phone or send it e.g. to Bluetooth Speakers. I am providing a simple API for this in my ESP-A2DP project. Most users are using this as library in the Arduino IDE Read more…
Unfortunately the available memory on Microcontrollers is quite restricted and we do not get very far by storing a (uncompressed) WAV file e.g. in program/flesh memory, so I started to look into compressed audio formats. On the desktop we can use the FFmpeg project which comes with a rich set Read more…