hi all sifu's...

i bought these items, do i need a hub to control of of em?

Finished setting up Aqara smart switches + hub last night at my new home... Everything works perfectly..
Is really convenient to have smart switches and app especially for airconds.. Now I can enter into a cold house after work.. 

Bruh, he is talking about a wall switch aka T1 UK.
If he don't have a neutral line nearby, he can't do anything unless ask electrician to pull one.

Bro, you're using Sonoff T1 to turn on/off water pump? I'm planning to do that as well

Use the smart switch to trigger the contactor inside that big box perhaps (simulate the button pressing)?

For AC, have to use SONOFF POW R2 i guess, shared by previous post

just get this - https://shopee.com.my/XIAOMI-Mi-Universal-I...8004.1005656667
This Wifi IR remote replaces your current AC remote. The difference is you can control it thru your MiHome app. This Xiaomi IR Remote connects over Wifi so you dont even need the Mi Hub
theres no need for Sonoff POW, just leave the AC switch on.

care to share pic of the big box? quite confuse what kind of big box you are referring to.

are you still using the old AC?
new AC don't need the magnetic started anymore. you can bypass the starter and use normal 20A switch. it will be easier to install the sonoff POW at the switch itself.

Using zigbee or wifi version? Relay still working?

basically just check if the plug still works normally to turn on/off.
last time this happened the firmware got some issue, and I just install custom firmware on it.

probably gonna have to claim warranty since plug is compact and a bit difficult to crack open to do any firmware flashing.

Since you’re already engaging an electrician to install electrical wiring, you might want to consider adding the following:
- SPD (Surge Protection Device) in the DB box to protect your smart gadgets from lightning strikes and electrical surges.
- Smart RCCB (to replace your existing RCCB) with auto-reclosing function, real-time power usage display, and current leakage monitoring.

I recently installed one in the upstairs DB box after my old RCCB kept tripping occasionally. Using the real-time readings on the unit (and on my smartphone), I was able to identify two leaking devices:
- An old laptop power adapter leaking about 10mA.
- A water heater leaking 20–30mA.

To prevent further issues, I’ve turned off the circuit breaker for the water heater.

The auto-reclosing feature is especially useful, it automatically turns the Smart RCCB back on if it trips unexpectedly (e.g., due to lightning). However, if the RCCB keeps tripping after several attempts, it will stay off until someone manually resets it or checks the wiring for faults.

If you’re planning to install a solar system in the future and want to monitor both import and export power, consider getting a bidirectional RCCB.