Ok for me so far. Using for about 10 months now.
Most of the time the gateway don’t even need internet connection in order for your sensors to work as they are connected local to the gateway via Zigbee

You want to pull N wire from 20A switch for what load? Theoretically, it does not matter as long as you do not change your MCB to higher load.

In your AP case, what are frequencies and channels use? Probably interference is killing signal and create dead zone?

All the neutrals currently used for AC . Some ac on once a week , some on daily . The switch that pull it is all lights or fan . Lights are led , fan is normal Panasonic

AP frequency should be 20 channel need to double check . I’m not worried in the dead zone yet . This problem worst come to worst I get damn powerful router lol

I have Xiaomi yeelight . Setup is tricky and not easy . So I’m not keen on Xiaomi ecosystem where I can . By the way can I use Xiaomi switches without gateway ? Or the gateway is a must

i believe the answer is yes, unless you have other device with zigbee to communicate with the switch.

i'm looking at using Ubiquiti AC-AP and mount on ceiling for maximum coverage, price is about RM600-700.
Need to try if the signal can reach second floor.

Usually the 20A switch is serve directly by a single 20A MCB. I think it is not a problem. Usually the fan even probably loop through lighting N wire.

Just make sure your two AP channels are not overlapping each other. Both 2.4GHz? If they are and if you are setting them for 802.11n, then use channel 3 and 11.

i am thinking to use the door sensors as my house alarm, tight on budget
Worry that the server is not responsive and cannot notify me when i am out.

To mu understanding this is just pure AP. It is not for drop in replacement for SOHO wireless router. It has not NAT whatsoever..... not sure

thanks for your suggestion Zot, I will use sonoff POW and wire only L for load, and neutral and L for input side.

Also thanks to this thread i've successfully installed a Sonoff RF to my water pump. I've used the loop timer to turn off the water pump automatically after 20mins, but sometimes it'll turn the pump off within 2-3 mins of the pump running. Anyone facing this issue and possible way to rectify it?

"Usually the 20A switch is serve directly by a single 20A MCB. "
Does this means if i check in DB i can confirm it?

" Usually the fan even probably loop through lighting N wire."
Sorry, in layman terms, if the fan and light loop through the lighting N wire, then i connect it to the side 20AMP ac neutral, not an issue?


Just make sure your two AP channels are not overlapping each other. Both 2.4GHz? If they are and if you are setting them for 802.11n, then use channel 3 and 11.

Sounds doable, I'll leave this to the last, i have tinkered with them previously, not per my expectations.

Now I'm thinking of how smart the sonoff is. Are you able to see any measurement on current consumption? I suspect that the sonoff is turning itself off when sensing no load because the N is not used I'm not sure but could be the possibility

Yes. Find which MCB that cut the power off to the 20A switch. Most likely one of the one labelled 20A.

Standard wiring usually like this:
1 x 16A MCB > 1 x 3-pin socket
1 x 20A MCB > 2 x 3-pin socket
1 x 32A MCB > 4 x 3-pin socket
1 x 32A MCB > 6 x 3-pin socket (if using ring configuration)
1 x 20A MCB > 1 heater point through 20A DPDT switch
1 x 20A MCB > 1 air-con point through 20A DPDT switch

1 x 6A MCB > 6 x light
1 x 6A MCB > 6 x light point/fan

As for the light and fan switches, the N wire is looped at ceiling level. That is why only L wire go to switches.

In single phase wiring, all N wire go back to same point at DB. So, you can tap any nearby N wire. Normally this will not trip RCD.

If 3-phase wiring, most likely the N for each phase go back to separate RCD. So, if there is any imbalance is current return compare to current to devices, the RCD will trip because RCD assume there is short or leakage.

For me, it is safe to tap N from any wire though certified electrician will say cannot. So, take note on this. This is my word only though I'm confident with it

You can refer TNB wiring practice here

https://www.scribd.com/doc/125868342/Suruha...ing-Residential

Haha im also in learning stage. My suggestion, start with switch light that you use reqularly. At momemt im using sonoff switch for hall and room but toilet im use aqara with sensor

The etouch is the most pleasure part. No regret using it

question, don't you think it is odd to have aqara, and sonoff in the house together, not counting your existing dumb plug?
I for one, prefer uniformity -.-

Then you have to slow slow wait.
There isn't one standard for all these devices except for the tech (Zigbee, Zwave, WiFi, RF)
The closest to integrate all is by using Home Assistant, Openhab and other open source software.

yes, that's why damn headache.
No one has proper integration.

Apple normally has the best, but they are lagging way behind google home

it is not because it serve specific need which is more practical to have that. main reason because toilet do not have ac or plug socket side side for me to pull the neutral.

This post has been edited by kelembai: Oct 18 2018, 07:18 PM