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Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test

p.kaczmarek2 1173 23
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  • 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?

    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .

    The first thing that catches the eye is the temperature selection. That's already something. Let's check out the contents of the kit.

    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .

    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.

    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .

    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.



    .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .

    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.

    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .

    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.

    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .
    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test .

    Automation can be set. For example, you want the kettle to boil water on a given day at a given time.

    Why WiFi connectivity in an electric kettle? Svensson Tuya SMART06B test
    Kettle SMART06B app screen with scheduled time and temperature settings visible .
    Schedule settings screen with comment input and confirm option .

    When heating is switched on, the status on the screen changes to "Heating".

    SMART06B app interface showing green tea mode and 85°C temperature setting

    It is now possible to look inside the product. There are no electronics in the base. We therefore unscrew the cover from underneath:

    Interior of SMART06B electric kettle showing control electronics and wiring .

    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.

    YTA-SS-105DM relay inside the SMART06B electric kettle housing .
    Close-up of the SMART06B kettle PCB with visible capacitors and EE10-06 coil .

    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.

    Control module with dial and springs inside the SMART06B kettle handle .

    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 electronic module inside the handle of SMART06B kettle .

    WBR3, this series was described on the forum: WBR2, WBR3, WBRU, W701-VA2-CG pinout, data sheet, flashing for Home Assistant .

    Close-up of WBR3 WiFi module in plastic housing held in a hand .

    The programming pads are on the bottom of the module, so you have to solder it off the board.

    WiFi module WBR3 with labeled pins RX, TX, GND, and 3.3V, held between fingers. .
    WBR3 WiFi module on PCB with UART connector in close-up view .
    WiFi module WBR3 and adapter PCB on a wooden surface .
    WiFi module next to programming interface board on wooden surface .

    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? .

    Cool? Ranking DIY
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    About Author
    p.kaczmarek2
    Moderator Smart Home
    Offline 
    p.kaczmarek2 wrote 13018 posts with rating 10782, helped 601 times. Been with us since 2014 year.
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  • #2 21709585
    androot
    VIP Meritorious for electroda.pl
    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, because it would take me as long as 3 mins to do so on my return.... Only I forgot, after all, when I leave, I switch off the power in the flat, except for the fridge....

    You can't tell from the photos if it has thermal protection.
    The function of heating water to lower temperatures completely useless, because this water will not be boiled, only heated.
    I wonder how future generations, e.g. 50 years from now, will judge the quirks of the early 21st century....

    I have a Xiaomi with Wi-Fi, it's probably the worst kettle I've had. Functions similar, out of curiosity I checked what the Wi-Fi was for, that's where its being a smart kettle ended.
  • #3 21709597
    p.kaczmarek2
    Moderator Smart Home
    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 to spoil the equipment I bought straight away.

    As for practical applications, perhaps this temperature maintenance makes sense after all. The manufacturer suggests using this to maintain the temperature of tea or milk already boiled separately beforehand. That is, for example, you boil the tea once and then have 12 h maintained at the temperature you prefer for drinking.

    However, for me personally, such a gadget is rather just a curiosity, I just like to look inside and see how it works. I have already run my firmware on it and linked it to the HA. There will be a separate topic about that. Privately I'm not even rather fond of mobile phones, I find it hard to operate on a small screen.

    Does the Xiaomi kettle you write about have overheat protection when you switch it on empty?
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  • #4 21709607
    krzbor
    Level 28  
    p.kaczmarek2 wrote:
    Repairs such kettles?
    .
    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 solders on the relay leads. The whole repair was to add some lead solder and the whole thing started to work. Generally the point of repairing rather only in these electronic kettles when some small thing is the problem.

    Added after 20 [minutes]: .

    p.kaczmarek2 wrote:
    I also turned it on for a test without water and it started to heat up, then I stopped the experiment because I also don't want to spoil the equipment I bought right away.
    .
    I don't think there will be no protection there. It will be bimetallic in the middle section. However, this still means overheating when the kettle is empty. This will certainly do a disservice to the electronics that are not nearby. It can be solved better - in addition to the bimetallic switch, it is enough to add an electronic sensor at some distance from the heater. The protection can consist in detecting a too rapid temperature rise when the relay is switched on. What is more - such protection can be "permanent". - to clear it, the kettle must be disconnected from the power supply (e.g. by lifting it).
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  • #5 21709643
    androot
    VIP Meritorious for electroda.pl
    p.kaczmarek2 wrote:
    Does the Xiaomi kettle you are writing about have overheat protection when you turn it on empty?
    .

    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. If it quite annoys me I will test it....
  • #6 21709697
    klamocik
    Level 36  
    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 minutes without water it behaved in the same way, only the heating was shorter. And the Wi-Fi is after a week of standby the electricity used would be enough for several coffees.
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  • #7 21710707
    bumble
    Level 40  
    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 rectangular increases the efficiency of heaters, it is not suitable for powering electronics. In my opinion we are getting into Wi-Fi paranoia in the kettle, roadster, fridge etc.
  • #8 21710791
    p.kaczmarek2
    Moderator Smart Home
    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 used, or non-isolated step-down converters, such as on the BP2525:

    Application circuit for BP2525X controller with AC input and DC output, no transformer .
    Flyback power supply schematic with S7133S and S7303S and transformer .

    (As for the second diagram - in IoT devices I see it with a Schottky diode, they don't use synchronous rectifiers there, I only see them in USB power supplies for charging phones).

    I am under the impression that you are referring to devices that are powered transformerless, but using the capacitor/capacitive dropper method? I could be wrong, I'm more into digital electronics.
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  • #9 21710812
    bumble
    Level 40  
    I mean you don't have a sinusoidal waveform in the socket but a rectangular waveform.
  • #10 21710819
    p.kaczmarek2
    Moderator Smart Home
    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 'rectangular'. They have a bridge rectifier at the input anyway.
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  • #11 21710833
    misiek1111
    Level 36  
    androot wrote:
    From the photos, you cannot see if it has thermal protection.
    The function to heat water to lower temperatures completely useless, because this water will not be boiled, only heated.
    .
    No worries. The electronic kettle has a total of three protections.
    A, B - mechanical thermistors.
    C - thermistor for the electronics.

    Inside base of kettle showing protections A and B (thermal cutoffs) and C (thermistor). .

    You can safely switch on the heater without water. The thermistors can also work after all the boiling water has been poured out of the kettle.
    Just heating the water to 40°C is a useful function when we need to dissolve 2KC in a warm glass of water in the morning.

    Switching the kettle on remotely, also seemed nonsense to me, but for me it could pass the test in the morning when I can switch the kettle on for a coffee from bed.
    Unfortunately, switching on the phone, launching an app, connecting to the net, clicking on some options, would be too difficult for me in the morning. :]
  • #12 21710856
    p.kaczmarek2
    Moderator Smart Home
    One can always be tempted to integrate the voice assistant and then the control is literally "on call".
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  • #13 21710877
    bumble
    Level 40  
    p.kaczmarek2 wrote:
    You can always be tempted to integrate with the voice assistant and then the control is literally "on call".
    .
    Oh that's right, and then there's the toaster.
  • #14 21710960
    szeryf3
    Level 29  
    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 when the machine is switched on, it first flushes the nozzles and then makes coffee.
    And who would want that kind of coffee.
  • #15 21711275
    krzbor
    Level 28  
    bumble wrote:
    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 rectangular increases the efficiency of heaters, it is not suitable for powering electronics.
    .
    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. It can even be direct current. It is completely different when the power supply is transformerless - here the rectangle can destroy the device.
    Fortunately, WiFi devices need a lot of low-voltage current, and this is difficult to achieve in a transformerless power supply, Rather than using a transformerless power supply of e.g. 12V or 24V and then a step-down converter to 3.3V.
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  • #16 21711366
    p.kaczmarek2
    Moderator Smart Home
    @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 the transformerless ones.... our Electrode initiative has already described almost 800 IoT devices, which can be seen here: https://openbekeniot.github.io/webapp/devicesList.html and somehow I don't associate any with a solution other than flyback/step down.... well, except for the battery-powered and USB-powered ones, of course.

    The capacitor solution is what I rather see in timer programmers without WiFi, which I have also already presented:
    Simple LXU09 timer programmer - instructions, interior, cell from inside (backup) .
    Timer programmer with LCD JK-TM01 - operation, instructions, interior, construction .
    I've also seen them in devices with just RF (remote controlled sockets etc on remote control)

    As a curiosity about powering devices with WiFi modules, I might add that most often there is 5V from a step down (BP2525 etc) or some simple flyback, sometimes occasionally 12V (if there is a larger relay), and then either LDO 3.3V or step down to 3.3V. Only occasionally do you get curiosities such as here: Template and firmware information for a generic Tuya EU WiFi Smart Plug with LN where a non-isolated BP2525 style step down directly gives 3.3V to the WiFi module and to the relay, which is also on 3V....
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  • #17 21711547
    Donpedro_z_Otwocka
    Level 17  
    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 prompts about whether you're brushing correctly by bone conduction directly to your brain and collecting the data in an app on your phone.

    Well, how about a carpet with wifi? There's also. An interactive rug for children. Ok, after reading the offer it sounded convincing.

    Let's move on. Well, how about a wifi-controlled comb? One that analyses the quality of combing and sends data to an app.... Here I didn't find one with wifi, but I did find a "lice comb" with the cabaret name "VITAMMY UFO 1" . Someone had a sense of humour :) .
  • #19 21711910
    cranky
    Level 28  
    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 at least a minimum of thermal insulation - this piece of crap does not. A couple of hours at 60°C will eat up a lot of coin (I know, I used to build a coffee cup temperature keeper).
    Definition: Automatic shutdown - After removing from the base
    deserves a Pulitzer.
    But I'm going to buy a kettle like this and hook it up to the LAN - so the carpet isn't alone when I go to work.


    Moderated By ArturAVS:

    Why the ironic insertions?
    Dissemination of ironic, mocking or malicious content which is disrespectful to other Users or third parties.

    .
  • #20 21712160
    sanfran
    Network and Internet specialist
    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. And this was right after it was publicised that these products should have a self-replaceable battery to avoid shelling out about $1k for a new product every year.
    It seems then the sponsor was furious, because all comments were kicked out and the article was closed to comments, like sensitive topics in WP.
    Now I'm waiting for something similar to come along to praise the mech... oh pardon, electronic orange.
  • #21 21713144
    popek9
    Level 14  
    >>21709585 well, in my opinion it could be the wifi in the kettle, but only and only if there is also a water level sensor. If there isn't one then the whole control thing is pointless. If I knew how much water was in the kettle then I could turn it on remotely without having to get up, but the lack of such basic information completely disqualifies its remote functions for me.
  • #22 21713342
    szeryf3
    Level 29  
    In some time, there will be this function and it will still be with water hardness measurement.
  • #23 21713828
    strucel
    Level 35  
    Is it possible, in these turbulent times, for someone to first sell such teapots at a dumping price and then, when they are already in every home, remotely switch them all on at once, causing a blackout?
  • #24 21713929
    cranky
    Level 28  
    If they gave it an SSR instead of a contact relay t they could even remotely change the network load with such a kettle from resistive to capacitive or inductive. And yes, it's just a simple on/off switch.
📢 Listen (AI):

Topic summary

The discussion evaluates the practicality and features of the Svensson Tuya SMART06B electric kettle, which incorporates WiFi connectivity and remote control via the Tuya mobile app. The kettle offers temperature selection and temperature maintenance functions, allowing users to keep liquids like tea or milk warm for extended periods. Concerns were raised about the absence of clear thermal protection, as the kettle can heat without water, potentially risking damage. Comparisons were made to a Xiaomi WiFi kettle, noted for poor performance and limited smart functionality. Repair experiences with electronic kettles highlighted common issues such as broken solder joints on relay leads, which can be resolved by resoldering. Traditional kettles with bimetallic switches were mentioned for their automatic cycling behavior during heating and dry operation. Overall, the WiFi feature is seen as a novelty with limited practical advantage, mainly useful for remote temperature maintenance rather than boiling water remotely.
Summary generated by the language model.
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