I don't think your IP camera video is communicated through USB, it is over WIFI, micro usb is just power your ip camera.

What you need is IP camera <- poe spliter < utp cable <- POE switches/injector

poe spliter has two cables - one for power and another for ethernet cable, make sure you get the micro usb type poe spliter

The Aqara wall switch D1 should be compatible with home kit via Aqara Hub, because these wall switches are zigbee protocol, it cannot be directly added as homekit accessory, just like other aqara sensors, must go through Aqara Hub.

Aqara hub does not need to be in china region to add sensors that are made for China, my Aqara hub is in other regions and there is no latency issue at all.

The region name is "Other Region"

Alexa support in xiaomi apps is limited, it cannot control aqara switches.

I saw Ikea Tradfri controller 1 year ago at Ikea cheras, but couldn't find it lately.

Yes, looks like they restock already

For xiaomi eco system, if the device requires you to be in china region, I will try to avoid it, the reason is simple, network connection to china is not really consistent and fast, sometime you can get up to 10 seconds delay, imagine the motion sensor detects your motion, and then lights only turn on after 10 seconds

it is unstable if you set your region to China in the apps, around 60 to 70% of xiaomi eco system devices can work outside of china region.

The automation will have high latency if I set the region to china in Aqara app. As for xiaomi smart fan wifi edition, even though the Mi home app is set in Malaysia region, it still sometime can take 5-6 seconds to response when using Alexa.

I'm slowing migrating my smartthings devices and automation to home assistant, HA is using local processing which is much faster compare to smartthing cloud processing. another benefits is HA support homekit devices, now I don't need to buy apple TV for homekit automation.

Actually you should ask why smart switch without neutral line can work?

Smart switch is powered device, it requires power, a basic electrical knowledge tells you, a powered device require a electrical loop in order to let current complete a cycle.

so, a smart switch without a neutral means it does not have a loop, which mean no current flow through it! how come it can draw power?

Smart switch requires power, but it only requires a small amount of power, usually less than few watts, smart engineer hence design the smart switch to be always closed (slightly connected both hot wires with small current) even the switch is normally open, in this case, it establish the loop and powered the smart switch.

Now, next question, since the smart switch is always closed and let small amount of current go through it, why the lights do not turn on? because current also flow through lights, it should be on.

The key point is small amount of current, most bulb/CFL requires certain amount of current to flow through it in order to generate light, the small amount of current is not big enough to power the bulb/CFL to emit lights, so smart switch allows small amount of current to pass through it but the current does not have enough power to turn on the lights. clever design right?

The problem here is when this type of smart switch encounter small LED which only requires few watts to turn on, since this type of LED will turn on even a small amount current pass through it, hence, the LED blink or emitting small amount of lights.

That is the pass through capacitor comes in, the capacitor allows to bypass the small amount of current without flow through the LED, and problem solved.

in a nut shell, it is nothing to do with the switch apparent, whether or not it is touch or tactile.

Let assume zigbee switch use 1.5W less than wifi switch, then

7 device x 1.5W x 24 hours x 30 days = 7.56KWh per month, and 1KWh is RM 0.45 average, which is RM3.4 a month! you only save RM3.4 a month if using zigbee.

most wifi switch uses less than 2W, zigbee switch uses less than 1W

I have paradox alarm and I also got Aqara hub with xiaomi devices, Paradox alarm is old fashion style, If I were you, I will not consider paradox again, it is just kinda outdated tech

Aqara Hub itself built in speaker, quite loud actually, and can be acts as siren. Aqara with xiaomi zigbee motion, vibaration sensors can almost replace Paradox security system. the only feature that Aqara/Xiaomi motion sensor doesn't have is pet immune motion sensor. if you don't have cat or dogs in house, you should go with Aqara solution, one thing good about Aqara is homekit support, which is local process and can be managed by home assistant. local process is critical as the response is much faster.

Also you can get Aqara N100/N200 fingerprint homekit door lock to automatically disarm the security system when you reach home, it is better than key it code to disarm the paradox alarm every time when you go home.

You don't need to have apple product in order to use Aqara home kit, if you are IT technical guy, you can set up home assistant running on raspberry pi server and control all homekit devices.

If you have neutral line, then by all means use neutral line version better, and it is cheaper.

First, your diagram is wrong, second, if you think looping is series connection, then it is wrong either.

looping is single live wire cable connect to many devices but in parallel way. live wire connect to liver wire, neutral wire connect to neutral wire.

Series connection means live wire -> load -> neutral wire -> live wire -> load -> neutral wire.

If you still don't understand, please get a good electrical technician to do the jobs, or you might harm yourself.

Aqara hub + Aqara smart plug + Aqara wall switch + Aqara motion sensors (optional) will be able to achieve it.

Actually the most important thing is your z-wave hub frequency must be same as your z-wave devices.

I have US frequency z-wave devices and hub, and it has been working since 2016.

Last time there were very limited Malaysia frequency z-wave devices, I don't know whether or not is it still true now, If I were you, I will choose U.S frequency because it has more z-wave devices available.

BTW, I won't recommend to get z-wave devices as it is more expensive, zigbee devices also can achieve the same purpose.

Aeotec Home Energy Meter (z-wave device)



My whole house power usage


This post has been edited by Kiding: Jun 28 2020, 02:54 PM

Clamp to TNB incoming in DB. it can be powered by USB 5V source or 4 x AA batteries.