Pairing Ketotek smart switch ?

Feb 09, 2024 Last reply: 2 years ago 8 Replies

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Switch is fitted with 2 wires - one to LED tube, other to Live.



Switch is working perfect in "manual" mode (touch it an light is on off)



I have the faceplate off and can see the little blue LED, which I can get to flash quickly or slowly with a long press on the switch (and that should serve as a warning about putting such devices "in the wild" ...).



However no matter what combination of slow or fast flashes I get, my Smartlife App (which already controls my smart thermostat) refuses to see the device.



I am following the brief instructions that came with the device and they say to pair as "Switch Wifi + BLE".



Just wondered if anyone else has any pearls of wisdom. I have tried a preliminary Google, but the amount of f****ng videos I am expected to watch these days means it's probably quicker to ask here.



I can't see any wifi networks appearing, so can't connect that way.



Worst comes to the worst I will have a touch sensitive dumb switch. But the idea was to allow SWMBO to use Google Home to control it as she can't reach it from her wheelchair.


Does the smart device give out its own SSID once it's in pairing mode, if so can you connect to it from your phone?

For devices that use BLE as a "helper" to make the initial connection you sometimes need to be really close to them.

What are you trying to pair it with? My reading of the blurb is that it doesn't create a wifi network (SSID, etc.) but rather needs to use your domestic wifi to connect to your router, and thence to the internet so that you can control it from "anywhere". You probably need to press the button on your router while the blue light is flashing. Once you have done that, the Smart Life app should be able to detect it.

A further thought . . . It needs 2.4GHz wifi. If your router only uses

5GHz (unlikely) you're stuffed. If it uses both, you may need to disable 5GHz temporarily while you get it to connect. Once it's connected it will be ok with 5GHz turned on again.

The usual deal with Tuya smartcrap is that you're pairing it with the phone app. You put the device in pairing mode and start the app, the device broadcasts an open SSID that the app configures the phone to connect to. Once connected the app squirts down the SSID and password of your actual wifi network, the device replying with its global ID. The device turns off its SSID and reboots with the new connection details. Once established on your network it then phones home to its server from where the phone app can hook up with it.

A variation on the same is the device doesn't do the first wifi dance but instead broadcasts itself via Bluetooth, from where the app can connect and do the squirt.

The usual problem is the apps are awful at managing the wifi/Bluetooth on your phone and it fails in some way (security permissions or a gazillion forks of Android), leaving the device hanging about with no SSID. Or the SSID squirt works but the device fails to connect for some reason (eg lack of 2.4GHz signal, which the phone hasn't noticed since it's on 5GHz)

Of course with a lack of display and interface consisting of an LED and a single button, the UI for this is awful.

I've not seen them do WDS as you suggest - the problem with that is that it gets the device set up on the wifi but doesn't tell the phone app its ID, so when they both phone home there's no way to hook them up with each other. I suppose you can scan a QR code or similar, but that's not typically part of the flow. (For another thing, not all routers have WDS and if not you're a bit stumped)

Theo

(who won't buy this stuff unless it can be retrofitted with Tasmota or ESPHome)

All done.

After some fiddling, it *needed* my phone to be on my 2.4GHz network only, and to use the "Wifi" only manual option (not Wifi +BLE) from the menu.

All setup, with SWMBO happy she can turn it on & off by "Hey Google".

HOWEVER.

The light it controls is above the kitchen sink. Wanting to reserve "kitchen" for the top light, I decided in a moment of madness to call the device "sink".

Which means whenever you say "Hey, Google, sink on", it hears "Hey, Google, sync on" and you get a 5 minute spoken lecture on how to pair a bluetooth phone to the nest speaker.

I still remain deeply sceptical that AI is going to amount to much.

Many thanks to those who replied. Hope this answer helps others.

Shouting "stop!" or "you're s*it!" helps ...

I do find myself wondering how the bastard can listen *and* speak at the same time...

Most of these devices require 2.4GHz, but I have just discivered that I have a so-called smart socket if I try to upgrade the WiFi security from WPA2 to WPA2/WPA3, because I guessed that I had some devices that wouldn't cope with WPA3.

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