You need to use a device called "relay", which is essentially a (low)
voltage controlled switch.
You're question indicates that you don't have a lot of experience with
electricity, so I would strongly advise against trying to mess with high
voltage yourself. I would imagine there should be relays available that
have some standards outlets for the high voltage stuff and an isolated port
for the low voltage control.
On Jun 7, 2015 18:58, "Sajad Vafa" <[email protected]> wrote:

> Hi there.
> I searched in youtube, read the book "OReilly Making Android Accessories
> with IOIO (2012)" and searched here.
> No trace of 220 volts applications.
>
> I want to build a smart device to be used for 220 volt devices (turn
> on/off the lamps, motors, etc.).
> For example a smart house or a smart farm.
>
> Most of industrial devices are in the range of 220 volts. Can anyone help
> me with this or give me a hint?
> Thanks.
>
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