Yes, for DC. Mr DIY got sell cheap multimeters. Easy to test.

did you install the ewelink app? you must turn on using the app

Live = Positive
Neutral = Negative

Waffak man.

That Sonoff run on AC input la.

He go and cucuk the adaptor DC 12v output into the sonoff. Where can jalan.

he didnt show everything so could be 240v side of the power adaptor....
Its 12V DC so must be those brick style not plug type

Oh I see. I think this is the cause .. hahaha. Otherwise I tried all method and still no power..

now i see it - connected to Input

This post has been edited by idoblu: Feb 14 2018, 01:12 PM

This kind of adapter. Is it DC or AC? totally noob here.


Attached thumbnail(s)

TS idiot want people help but don't give full detail.

That adaptor word show the wire output. So normally AC input is opposite that brick. Than the wire marking line is normally use on DC. That slash line for polarity. But forget for + or -.

It is DC
cannot use this - listen to ozak

your DC power adaptor output connected to sonoff input - tabuli ini machem

you need to use AC input - i suggest you dont use this Sonoff Basic since you dunno how to connect simple circuit - it could kill you
use this instead - Sonoff S20



This post has been edited by idoblu: Feb 14 2018, 01:20 PM

dangerous hahaha.....

Show him your DIY sonoff connection.

Haha.. thanks all for input. Lesson learnt here. Many thanks..

no point cause he needs to turn on and off a 12v DC device
what he needs is a Sonoff S20 smart socket

it's still 240 to ground

DC --> AC still not dangerous.

But cucuk AC --> DC, sure kaboom.

None of the wire is L or N

Test with finger. If you no die yet, that is N.

Sonoff S20 smart see socket can control any device or plug attach to it?

red = live

blue/black = neutral

yellow/green = earth

use a multimeter set to ohm to trace connectivity.