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Powering external device from 5V supply

I believe the internal 5V power circuit can source up to 700mA. Would it be a problem to tap into that supply to power an external device that can be controlled by the relay?

For example, I want to power a door lock that uses 50Ma to open close.

So I would power the door lock directly from the sonoff and use the relay to open close the lock.

Is this possible?

1 Comment

Dear all,

I have a similar question. I would like to use the sv wifi switch to close the cirquit that opens the door of our house. This secondary circuit is already powered, I only need to close the circuit though. I already tried the High Voltage Wifi Switch but it blew up my intercom system. 

What product would fit my problem?

BR, Geert

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