Hello everyone, I am a computer engineering student and I need to do a project. I chose to make an mp3 player as a project. I am attaching the link that I will use in the project. my problem is that this circuit does not meet the desired conditions. the desired conditions are that the circuit contains at least 1 integrated, transistor or diode. I think this circuit does not have these. I am thinking of adding a transistor to the speaker, I would appreciate if you help me to do my homework.
the project: Arduino MP3 player project
Look carefully! The mp3 likely has all three. Are you wanting to ADD a transistor between the current mp3 output and a speaker?
The MP3 player module contains most,if not all, of those components.
my knowledge of electronics is very limited, are you sure that the project meets the requirements? I would appreciate it if you specify which transistor or diode. chatgpt told me that I don't have what it takes and to do this.
Arduino Pin --> Transistor Base
Transistor Emitter --> GND
Transistor Collector --> Speaker (+)
Speaker (-) --> GND
What are the exact requirements as given to you ?
The project you will choose must meet the following minimum requirements;
- At least 1 integrated or transistor or diode (except LED)
- At least 2 resistors
- At least 1 capacitor or bobbin (and other elements jack, button, LED, seven
segment, speaker, sensor, LDR etc.)
then I guess I don't need to add anything in that case
I have no real idea of the requirements of your request.
Good luck with chatgpt.
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if you have another project suggestion for this I would appreciate it, it would be better if it is simple, easy to understand and easily accessible. many easy projects are done by other groups.
Well, you could just add to the MP3 player:
A resistor between BUSY pin of the MP3 module and base of an NPN transistor. A carefully selected large LED or filament bulb (suitably powered if its current requirement makes that necessary) from collector to +V.
The LED/lamp would be lit or unlit depending on whether an MP3 was playing or not.
Research and coding down to you, of course, ideally without further AI help.
If you want to do the assignment without adding a wig to a commercial product, while following these rules...
... make an astable multivibrator with one output an LED and the other output a buzzer (bobbin).
If you insist on using a commercially available product with a few discrete components to do the button pressing, you can use the DFPlayerMini in stand-alone mode.
I am curious, what university has an instructor who thought it reasonable to "make an MP3 player" as a first EE project when most are making an LED or two blink? Parts of the story are missing.
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