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Topic: Arduino controlled electromagnet, LED, and audio (Read 731 times) previous topic - next topic


Hi everyone,

I am a university student working on what I would imagine is a fairly straightforward electronics project for someone with experience. However, with my lack of knowledge I have been struggling to understand what components I need.

I want to control a single electromagnet, an LED strip and have audio output run from a single Arduino board at the same time.

I would like to know what components would I need to successfully achieve this? As of now, I have not purchased any components so there are no specifics to the project yet.   

If anyone would be willing to guide me and offer support throughout the short project, I would happily offer compensation for the help.

If you have any questions let me know!

Thanks in advance!


You are going to have to do a lot better in your description.

Define 'Audio'
Define what LED you think you need
Define what Electromagnet you are trying to use

No - I'm not interested in doing this.
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Whatever small (50 - 80mm diameter) audio speaker which can be used with an arduino.

Once again, no specific LED strip. However, I found this one on amazon which should do (as long as its compatible with arduino):

An electromagnet between 20/40mm in diameter should do just fine with a fairly small pull as it will only be used to interact with some ferrofluid, for reference this one can be used:


I am mainly struggling to know which components such as flyback diodes, transistors or control units I need for the circuit to run successfully and safely.

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