Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test
.Ever wondered what a remote control for an electric kettle could offer us? The SMART06B has just such a control - all thanks to its built-in Wi-Fi module and compatibility with the Tuya mobile app. Here, I'll try to check it out and showcase it, including the centre of the device. Does such a product make sense? Let's find out!
We bought the SMART06B for £150, although we may have overpaid because we ordered from a local importer. An ordinary electric kettle can be bought for a few dozen zlotys, so here we are paying about a hundred extra for.... Exactly, for what?
.The first thing that catches the eye is the temperature selection. That's already something. Let's check out the contents of the kit.
.We also get a warranty card with a list of repairs - does anyone respect this? Do they repair kettles like this? Perhaps someone reading this knows? Still, this talk of replacing parts.... Is it possible to get replacement parts for this kettle?
The manual discusses the operation and pairing of the appliance. I'm not going to rewrite it here.
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.Pairing with the app is seamless, but you need to turn on Bluetooth and location access beforehand. In the pairing state, both LEDs flash rapidly.
.In the app, we are welcomed by a preview of the current temperature, operation control and operating modes. We can select one of the predefined temperatures, or set our own.
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.For example, a temperature of 85°C is given for green tea and only 45°C for milk.
An interesting option is the possibility to set a temperature hold time - this way you can ensure that your drink is always warm.
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.Automation can be set. For example, you want the kettle to boil water on a given day at a given time.
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.When heating is switched on, the status on the screen changes to "Heating".
It is now possible to look inside the product. There are no electronics in the base. We therefore unscrew the cover from underneath:
.PCB designation: PD-G1318E-P01 Inside is a buzzer, a small power supply, probably in flyback topology, and a relay for 16 A, the YTA-SS-105DM. I also see input filters, a varistor and a fuse resistor.
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.The module with the display has two buttons, and four signals go from it to the kettle handle. The markings GND, 3.3 V and RX and TX suggest TuyaMCU.
.TuyaMCU has already been discussed on the forum:
TuyaMCU protocol - communication between microcontroller and WiFi module .
So we look into the handle - it's hooked up.
.WBR3, this series was described on the forum: WBR2, WBR3, WBRU, W701-VA2-CG pinout, data sheet, flashing for Home Assistant .
.The programming pads are on the bottom of the module, so you have to solder it off the board.
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.I made a copy of the batch and uploaded the OBK:
Copy of the batch: https://github.com/openshwprojects/FlashDumps/commit/f9f283d2cddad48157f4a7911798b242974dbe36
I then configured the device to work with Home Assistant, but about that in another topic....
In summary , the whole idea of this Wi-Fi is not as silly as it might seem at first. I'm able to understand the idea of remotely boiling myself some water just in time to return from a trip or thereabouts from work. The temperature maintenance option is also not bad, as is the temperature control itself, although the push-button version (without the app) is somewhat limited here.
The inside of the device also turned out to be interesting, there is a typical TuyaMCU chip, i.e. a Wi-Fi module for communication and an MCU to handle the rest, and this is communicated via UART. For the power supply inside, there is a small flyback power supply, and the heater is switched on by a relay - I wonder how its durability is.
Of the downsides to the product, I found one quite serious - it seems the kettle doesn't detect when there is no water inside at all. I switched it on empty for a test and it started to heat up.... I then quickly stopped the experiment.
In the next topic I will show how you can upload inside. our firmware and connect this kettle with Home Assistant.
Have you used this type of gadget, do you see the point of having Wi-Fi in an electric kettle? .
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I imagine I'm coming back from a trip, I don't know if there's water in the kettle, and if there is, whether it has developed any intelligence yet, but it's imperative that I switch on the kettle remotely,... [Read more]
You thought the same thing as me - but in the text it is included. I also switched it on without water for a test and it started to heat up, after which I stopped the experiment because I also don't want... [Read more]
. A kettle with electronic controls started to fail at my Mum's house. It worked when it cooled down, but when it was heated it varied. I decided to have it looked at. The problem turned out to be broken... [Read more]
. Rather not, as I often turn it on with a small amount of water, e.g. when decalcifying, You can see then that the temperature rises quickly, but it is possible that it will switch off after a while.... [Read more]
I have a 10-year-old ordinary kettle with a built-in bimetal and after boiling water (almost) it switches off for about 1 minute and switches on again for a few seconds until the water boils, for a few... [Read more]
I would add from myself that such gadgets whether in a kettle, boiler and other appliances make it impossible to use them with a PV inverter, which instead of a sine wave gives a rectangular voltage. While... [Read more]
Can you clarify what you mean by powering the electronics in this case? I've checked quite a lot of Wi-Fi controlled devices and I know that there rather flyback converters (with galvanic isolation) are... [Read more]
I mean you don't have a sinusoidal waveform in the socket but a rectangular waveform. [Read more]
Correct, but you wrote that such gadgets don't work with rectangular waveforms, and it seems to me that the two types of power supplies shown used in Wi-Fi or Zigbee-based IoT devices will work well with... [Read more]
. No worries. The electronic kettle has a total of three protections. A, B - mechanical thermistors. C - thermistor for the electronics. https://obrazki.elektroda.pl/3861480700_1759668277_thumb.jpg... [Read more]
One can always be tempted to integrate the voice assistant and then the control is literally "on call". [Read more]
. Oh that's right, and then there's the toaster. [Read more]
Such a kettle in the morning would be useful for me when I wake up. It's the kind of time when the birds are still asleep. For that I have a coffee machine with wi-fi. I do not use this function. Why? Because... [Read more]
. It depends on the method of power supply. In the case of inverters, the rectangle doesn't bother anything - there is a rectifier at the input and a capacitor behind it. Here the signal waveform is indifferent.... [Read more]
@krzbor that's what I was gently aiming at, especially as I wrote in my presentation that the power supply looks flyback and I didn't know if my colleague @bumble was referring to that or if he just meant... [Read more]
I was going to joke that now I'm just waiting for a toothbrush with wifi.... But I looked online and it turns out something like that already exists - the Oclean X touchscreen toothbrush, sending voice... [Read more]
Well ubiquitous wifi is creating new opportunities. https://vibez.pl/wydarzenia/szachista-oskarzony-o-oszustwo-metoda-na-kulki-analne-6813004816206560a [Read more]
I've always wanted a temperature-controlled kettle. Boiling water at 40°C is quite a saving. You destroyed my dream by explaining that it doesn't cook, it only heats. A heating appliance should have... [Read more]
These articles are great. I myself fell foul a year ago when I commented on an article that encouraged people to buy a certain version 16 product while suggesting they replace their annual version 15 product.... [Read more]