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 Smart Home, Let's discuss

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lucaswjk
post Dec 26 2023, 09:31 AM

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QUOTE(mental007 @ Dec 26 2023, 01:27 AM)
Hi all, read so many sources to suggest different methods to add neutral wire for smart switch. May I know which method is the most recommended way?

1. Add neutral wire from the light that connects to the same switch.
2. Loop from nearby Aircond/Heater switch
3. Add 1 neutral wire from DB box and loop the same wire to all the switches for neutral.
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nobody use #3

i used both. #1 when #2 failed.
3phase power when it is unbalanced it will tripped the power.
lucaswjk
post Dec 26 2023, 10:20 PM

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QUOTE(mental007 @ Dec 26 2023, 09:27 PM)
Thanks for the reply. I will be having my renovation so I dont mind to do hacking. Will ask electrician to quote for no.1.
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since u doing renovation, make sure to pull cables for smart curtain too.

dont forget to lay network cable for door bells, intercom, cctv, TV and wifi. choose cat6 awg23 for PoE.
do not stingy on cctv points, put it everywhere, eg living room ceiling, kitchen, balcony, baby room... etc

optional u will need a rack for all the network cables.
optional change ur rccb to smart, for electric usage monitoring.

even u dont hv intentions to use it now, just get all the points ready.
this kind of thing can only be done during renovation...
enjoy ๐Ÿ˜‰
lucaswjk
post Dec 28 2023, 07:16 PM

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just tap the neutral from aircon or water heater.
cheaper.

and rm90 majority of it is labour charge, if ur wall didnt hv pipe/trunk they might need to hack it.

oh yaa, the price about there... the same
lucaswjk
post Dec 28 2023, 09:32 PM

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QUOTE(mental007 @ Dec 28 2023, 07:36 PM)
Yes i und it is cheaper but there might be a concern if I want to add N for most of the switches in whole unit especially when it comes to safety concern. Tripping etc.
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something wrong here... ur understanding on the power.

the live and neutral cable to ur device it is used to powered up the switch, not ur light/fan/etc...
smart switch hv minimal power usage, less than 1W.

some of the switch said they no need neutral cable.
what they didnt not tell you actually still need a capacitor to leak some of the power to powered up the switch.
normally zigbee devices, coz their power usage is even lower.

conclusion, leaking less than 1w to ur 1000watt aircon neutral line i dont see any issue here

This post has been edited by lucaswjk: Dec 28 2023, 09:44 PM
lucaswjk
post Dec 28 2023, 09:42 PM

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additional knowledge when using 3 phase power line.

lets said you hv a 3 gangs smart switch. P1, P2 and P3.
u need to use P1 and the neutral from the same source. P2 and P3 can be from different live phase.

if your P1 and neutral is from different phase, then u will tripped ur rccb.
lucaswjk
post Dec 28 2023, 09:52 PM

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only 1 reason to use ur option (1), pull neutral cable from light source.

in 3 phase power, if P1 down, then. ur P2 and P3 will down too.
by using different N phase on ur other switches, then ur whole house will not be dark when power tripped.

ps: too complicated for electrician, i ended up using 1 switch from same phase, then second switch from different phase.

This post has been edited by lucaswjk: Dec 28 2023, 09:56 PM
lucaswjk
post Jan 1 2024, 11:22 AM

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QUOTE(mikeeeee @ Dec 31 2023, 01:25 AM)
I'm using zigbee switches with no neutral and no capacitor, so far 2 years already
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QUOTE(dest9116 @ Dec 31 2023, 10:02 AM)
Aqara zigbee no neutral smart switches do not need capacitor to install at the lights. They are that good but expensive. They can leak the 1W without capacitor
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no capacitor is a myth...
all LIVE power need NEUTRAL to return the power back to the grid.

it is either ur capacitor is located at
1. external, used as bypass
2. internal in the switch, as mini battery
lucaswjk
post Jan 1 2024, 12:25 PM

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QUOTE(alucard89 @ Jan 1 2024, 11:42 AM)
Hi bro, got this no neutral zigbee switch (with no neutral wire input)
If replace with esp chip, it would still boot up?
Already done esp swap on zigbee switch with neutral that obviously works but this Iโ€™m not too sure

user posted image
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bruh! u r the sifu here.
i learned most of it from u.

ur modding too advance for me ๐Ÿ˜…
lucaswjk
post Jan 1 2024, 04:04 PM

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lol it is because u guyz thought no capacitor needed.
I'm just trying to explain the logic behind no neutral line and no capacitor concept.

nothing wrong with my statement.
lucaswjk
post Jan 3 2024, 08:15 PM

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QUOTE(hanhanhan @ Jan 3 2024, 12:19 PM)
im very new to this smarthome set up

so far i haveย  bought random light bulbs and lights:

1. TP link Tapo Bulbs 530E x 6
2. Yeelight Arwen ceiling light x 1
3. some random tuya E14 bulb
4. some TP link wifi sockets

these devices specifically say 'no need hub/bridge' so it connects directly to wifi.

im afraid of wifi interference with my other devices like TV stick / laptop if there are too many devices connected to the 2.4GHz band.

question: is there a hub that i can use? if i use hub, meaning those smart stuff connects to the hub, then the hub (1 device) connect to wifi right?
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Please keep ur total devices under 50 units/AP.
1. Separate 2.4G and 5G SSID.
2. 2.4G band reserved for IoT devices.
3. 5G band for ur mobile, tablets, tv, pc, notebook, console, etc

My only complaint, u need too many apps for controlling.
Pls connect all acc to Google Home/Alexa/HA for unify control.

This post has been edited by lucaswjk: Jan 3 2024, 08:17 PM
lucaswjk
post Jan 9 2024, 10:54 AM

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QUOTE(nles @ Jan 9 2024, 10:41 AM)
user posted image

Got quoted this from Yeelight, fuiiyoooo. If I use Aqara I still need to use smart bulb and strips ya?
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why dont u use smart switch + common light?
u will save alot.

as for light strip, u might want to consider SK6812 RGBW COB 24V.
for any light strip, if u choose 5V u will need power injection every 2.5m.

This post has been edited by lucaswjk: Jan 9 2024, 10:55 AM
lucaswjk
post Jan 9 2024, 08:08 PM

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good router will not solve ur disconnect issues.
it is due to low wifi spec on most IoT devices
you either flash tasmoto/esphome to auto reboot or choose esp32 chipset.
eg Sonoff TX Ultimate
lucaswjk
post Jan 10 2024, 08:49 AM

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movie room... wow
pls invite if u house got man's caves too ๐Ÿ˜†

back to the dimming...
do u know that it is better to use addressable light strip to dim your room?
you can dim it to any color + animation ๐Ÿ‘ป

This post has been edited by lucaswjk: Jan 10 2024, 08:50 AM
lucaswjk
post Jan 10 2024, 07:50 PM

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QUOTE(dest9116 @ Jan 10 2024, 03:39 PM)
I suggest get the cheaper option only for lights, those led you will never know when they will spoil, imagine one led strip or bulb cost 100, then headache when you want to change. Same for maintenance. It's easier to swap bulbs E27 and T5 than led strips. But it's different if you rich and call ppl come change once it spoils.

BTW if you want go crazy with lights can also get the sonoff rgb switch lol.
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initially i wanted all my downlights use e27, but it is more expensive than the 1 piece clip downlight.
not to mention there are also 6in gap in between the ceiling.
for living room, it is not confronted with modern design concept.
ended up tak jadi...

oh did i misunderstanding he planned to use T5 as ceiling reflector light...?
let calculate, 4feet T5 LED = 18watts
how many feet you need?
in long term i dont think it is economical

This post has been edited by lucaswjk: Jan 10 2024, 07:52 PM
lucaswjk
post Jan 11 2024, 12:59 PM

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QUOTE(alucard89 @ Jan 11 2024, 07:43 AM)
Iโ€™m using homeassistant so can just integrate anything
Since youโ€™re using aqara ecosystem, might need to grab matter hub

Pair with aqara hub and tuya zigbee devices added on the matter hub should be exposed to aqara via matter, epicure might need to confirm this first

Or can just grab device with native matter support from this shop

https://m.tb.cn/h.5pLQ8lGaLNFsSMU?tk=N9a5WSYmeaO

https://m.tb.cn/h.5pL9hysIN1pGGjq?tk=b6xqWSYnOa0
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for Matter integration, user are required to use Thread border router rite?
lucaswjk
post Jan 12 2024, 07:47 PM

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thread, need border router
BT, need bluetooth gateway
Zigbee, need zigbee gateway

basically all this low power protocol requires additional hub.
haiz... too many choices, for end users

fyi recently i surveyed for euro cylinder lock, non of them hv wifi and almost all need BT.
I really want my devices to run on Wifi only. ๐Ÿ˜ฎโ€๐Ÿ’จ
haiz, haiz...
if anyone of you found wifi only lock, pls let me know.

example
user posted image
user posted image

This post has been edited by lucaswjk: Jan 12 2024, 07:49 PM
lucaswjk
post Jan 13 2024, 01:20 AM

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QUOTE(Max @ Jan 12 2024, 11:41 PM)
From what i read.. battery powered wifi iot devices cannot last long.
Wifi  drained the battery fast..
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I did a quick research there r new chip on the market.
the wifi on ESP32 C6 actually consumed very little power, 2ยตA deep sleep and wifi still working.
hopefully everyone using this one on upcoming smart lock
lucaswjk
post Jan 19 2024, 06:19 PM

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bought ESP32 C6, support wifi 6, bt, zigbee and thread. ๐Ÿ˜˜

Attached Image

planned to use it as
1. swing gate, esphome
2. alarm, esp idf

need to buy lm2596 module to stepdown the voltage rite?
or other model more suitable?
lucaswjk
post Jan 19 2024, 06:30 PM

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QUOTE(alucard89 @ Jan 19 2024, 06:24 PM)
Any open source thread stuff?
Thereโ€™s one by esp-zerocode where you can make your own thread devices
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i think esp idf 5.1 still in beta and not supported integration between wifi + thread yet.

anyway my primary objective is to use wifi first.
lucaswjk
post Jan 19 2024, 06:41 PM

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actually never did any electronics project before.
my only support is gpt ๐Ÿ˜…

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