What is the necessary configuration to create an arduino equalizer-player?

Question

Arduino

Hello. I set out to make a project on Arduino: playing music through a speaker, LED strip plays the role of a kind of equalizer. I would like it to be a separate device - both a battery and memory (for storing audio files), etc.
Since this will be my first acquaintance with Arduino, I would like to ask for help with the configuration, namely:
1. Which board should I take? Uno, Mini, Mega...?
2. What sound component to take? Specifically - the speaker and the drive.
3. Characteristics of the battery required for such an idea (the length of the LED strip has not been fully established, so I would only like an explanation of how to calculate the correct source voltage)
4. Necessary libraries.

Answer 1

In theory, you can take any Arduino (uno is more versatile, there are more shields for it). Take this shield here: https://www.sparkfun.com/products/10628, and get a bulky mp3 player with a memory card. The LED strip will not connect directly to the Arduino, most likely either through transistors or through the LED strip driver. The color of the rgb LED can be changed either using a variable resistance or pulse width modulation (PWM) (the latter is more effective when working with Arduino).
If it’s quite simple to connect the tape and the Arduino, you can take a ready-made one ( arduino-ua.com/prod405-Svetodiodnaya_lenta_RGB_5m_12V) and experiment with its driver (but this is just an assumption).