Hello, I'm a beginner and would like to make such a mini speaker on the Andruino but I don't know how to do it
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You can't directly connect a 4 or 8-ohm speaker without stressing (and possibly frying) the Arduino. Minimum impedance/resistance for a regular Arduino is 125 Ohms.
Why does that speaker have 4-wires? If it's a powered speaker you can connect it to an Arduino.
Note the the regular Arduino also doesn't have a DAC (no true-analog output).
Welcome to the Arduino forum. Where did the speaker come from, and what are you wanting to make with the speaker and your Arduino?
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Good post, that has probably kept you from frying the speaker. I always use a inexpensive audio amp to drive a speaker, they are available for a few dollars and the inputs do not fry Arduinos.
Without more information we cannot give you a good answer, so answering the previous questions is important.
@henri_name1
You can connect it with a 220 ohm resistor as shown in the circuit below but it will not be very loud.
If you want it loud then you will need an amplifier
Adafruit has a good selection of Arduino-compatible audio amplifiers, and excellent "getting started" tutorials.
Two are shadows.
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