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1  Topics / Device Hacking / Re: Sharing a switch from a 500w 230v ~50Hz motor on: November 20, 2012, 11:33:19 am
Thanks for the warning, I'm not going to attempt anything until I am 100% sure
2  Topics / Device Hacking / Sharing a switch from a 500w 230v ~50Hz motor on: November 19, 2012, 01:45:53 pm
I am using an 500w electric hoist/motor that runs off 230v ~ 50Hz mains supply. This has a 3-way switch UP/off/DOWN I would like to connect this switch to the arduino digital inputs effectively just to send the UP/off/Down information to a computer.

What resistor should I use with this kind of power so I don't kill myself and the arduino board?
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