hi , I'm new and constructing a sim racing wheel, i am planning to use a Arduino Nano. the buttons ive found that i like and not too expensive. have a current rating of 3A and an operating voltage of 250V im planning to use 12 of these, the operating voltage seems to be too high. any help would be appreciated. (the button style im planning on using can be seen in the image
That is most likely the maximum operating voltage. You can safely use the button contacts on lower voltages.
This picture shows a button-contact from very near
it is simply two pieces of metal that were pushed together and as soon as they touch each other electric current can flow.
regardless of a voltage as low as 0,05 V or beeing high as 250 V.
The specification does only say what the maximum voltage is that you can safely use.
Well it would be very good if you fresh up your basic physics knowledge about electricity and learn basics about electronics. Ohms Law. How to measure voltage and current and resistance.
best regards Stefan
Just new to the format
I don't understand what this means.
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Hello jackesim
Welcome to the worldbest Arduino forum ever.
The selected buttons are suitabable as already mentioned by the forum member jremington.
Take a view here to gain the knowledge about the basic connections using an Arduino.
Have a nice day and enjoy coding in C++.
If your racing wheel should act as a HID, you will be better off using an Arduino Micro or a Sparkfun Pro Micro.
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Sorry I don’t know what a HID is 
Take a view here:
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What Nano will you be using?
P.S. Project Guidance is probably a better category.
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