I am planning to use Wemos D1 mini (with sensors attached) about 1 meter from place where I already have Sonoff Basic wired. There are not wall sockets around so it would be ideal to power Wemos from Sonoff Basic 5V:
And the are no outlets nearby. I could create one for usb power plug but it would be ugly and I would rather want end result to be something as discreet and compact as possible.
How about overloading the Sonoff Power converter, causing it to overheat, starting a fire and burning your house down.
I don’t know what the parameters of the Sonoff are, but I can’t imagine cheap equipment like this is over-engineered, so trying to get it to run anything more than it is designed to could be very dangerous.