I think if using voice command, more likely you need to change your unit with new one that can accept voice command, but controlling from your phone or WiFi there are many that are doing this.

Wow.. Now the No Neutral WiFi switch starts emerging. At least can start motivating me

NATO still powerful

Last time I search found only by one company but not in AliExpress, Shopee, or whatever.

I use similar looking touch switch, double blue ring but the LED no more light but still functioning. Lazy to replace the LED. Right now have other project.

How do you control with LAN when there is not WiFi?

You mean need to install LAN cable or use electrical wire as connection medium?

I was confused when said if no WiFi can still work with LAN. First thing that comes to my mind was LAN cable, but no WiFi meant no external connection and use LAN WiFi. When Fubar20 explain, I realized my misunderstanding

Just google ans see how easy it is and investment is not expensive unlike buying power tools

Agreed, in electronics, probably, especially if dealing with high frequency stuff.

Anyway, the lead free solder is harder to make it nice compares to leaded solder wire

The temperature controlled soldering iron is not cheap. It is mostly for electronics industries. The iron tip is very expensive too since it has sensor to measure the tip temperature. For general use, I think you just need a dual wattage soldering iron.

The reason the iron tip is not hot is because you were soldering a bigger copper mass like a switch tab for example. With low power wattage, it takes time to heat the copper. However, the longer you heat, the heat traveled further to plastic part of the switch and starts to melt it and probably damage the switch. This is the problem.

For electronics component and small wire, you want to use low power iron like 20~30W and finish soldering in about 3s. For large copper area such as the switch contact or probably ground point on the PCB, you want to heat the solder point as short as possible also, thus need high power rating.

I would recommend something like this. I has a Hakko but it was less than half the price now . Many China copy (much cheaper) also nowadays if you like. You can easily find tip replacement for Hakko.

https://www.lelong.com.my/hakko-presto-dual...7-01-Sale-I.htm

Not sure where you detect small current after OFF. The fact is with or without N, the unit need power to operate. It is like TV on standby mode

The one with N, the unit is lowly powered directly from L and N. For the one without N, the power goes through L to the unit and back to N wire at the ceiling. This lowly powered the unit in standby waiting for an action.

There are AC powered IP camera (of course it will have build-in adapter to change AC to DC). DC powered IP camera comes with AC adapter (Yes, still connect to AC). POE IP Camera is powered through LAN cable, which use power injector (yes, still powered by AC line).

I only have virtual Smart Home No IP camera. Please someone help

I have a switch to disable doorbell (a gate bell actually). It was on disabled for very very long time and now when I enabled it, the bell is not functioning

Maybe this clear things up

In another word, I think the switch is partially kaput Intermittently operating.

Have you tried moving the switch somewhere else and see if it is working. I do not have Sonoff but other chap ayam ( ) touch switch that require no N. I think the sensitivity of my switch is self calibrated. Sensitivity changes with cover removed.

How long have you installed before it is giving problem?

You can read here some of the weaknesses of the device

https://www.itead.cc/sonoff-rm433-remote-co...oller-base.html

Your house have wiring ready for that?

Yes, using one RF to communicate with the other switch is possible. This was done by someone in this forum. Maybe someone can help here.

I guess plenty in Shopee like

https://shopee.com.my/USB-RGB-LED-STRIP-WIT...0389.1770437894