logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

W1209 thermostat, test, opinion, applications

TechEkspert 18807 61
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
Reply Cool? Ranking DIY | New topic
Notify about new articles
  • #31 17316264
    marycyś
    Level 12  
    I want to download from Aliex .. which has 8s003f3p6. But is it possible to change the software in it, is it not write-protected?
  • ADVERTISEMENT
  • #32 17316277
    miszczo997
    Level 28  
    Is not. To program, you need the programmer st link v2 and, for example, this batch from the link I gave above. If you want to write and compile the program yourself, you can use sdcc. You can find the appropriate header files for this processor on the web.
    A brief description of what and how here
  • ADVERTISEMENT
  • #33 17316279
    TechEkspert
    Editor  
    An interesting thing, if you manage to convert, I invite you to show the effects in DIY.
  • #34 17316287
    marycyś
    Level 12  
    Is such a programmer from Aliex .. enough ?:
    1PCS ST LINK Stlink ST-Link V2 Mini STM8 STM32 Simulator Download Programmer Programming With Cover A41
  • #35 17316297
    miszczo997
    Level 28  
    Yes that's enough. To program it, you need to install stlink utility (drivers for the programmer will be installed) and stvp to upload the batch. I associate that it was somehow terribly unintuitive, but if you click, you will find which options to choose for the processor to program.
  • #36 17316347
    TechEkspert
    Editor  
    What additional features do you want to get?
  • #37 17316402
    marycyś
    Level 12  
    I want to optimally manage the switching on of cooling, by additional analysis of switching periods, so as not to tire the aggregate (assuming additional tolerance).

    It's nice if you could use free pins, but I assume that there are no such pins anymore :)
  • #38 17316415
    TechEkspert
    Editor  
    The use of a ready-made board will speed up the implementation of the device, but it may turn out that such missing pins you write about or other difficulties may direct the project to make it from scratch, i.e. designing both the layout and writing the code.

    What do you mean by additional analysis of switching periods, something like PID, or more conditions for optimizing the number and intervals of actuator switching. Are the options available in this controller (e.g. hysteresis) not sufficient for cost-effective control?

    On / off control is generally not very optimal in many respects (for example the example of the temperature graph in the first post), but in many cases it is sufficient and, importantly, simple to implement. An example is an on / off and inverter air conditioner (there are both advantages and disadvantages of both solutions).
  • #39 17474858
    piterek-23
    Level 33  
    Is the "probe" waterproof / waterproof?
    I would like to use this module for an aquarium heater ;)
  • #40 17475289
    nici
    Moderator Chiptuning  
    piterek-23 wrote:
    Is the "probe" waterproof / waterproof?
    Yes.
  • ADVERTISEMENT
  • #41 17475437
    piterek-23
    Level 33  
    nici wrote:
    piterek-23 wrote:
    Is the "probe" waterproof / waterproof?
    Yes.

    Thanks.
    I opened the manual, and there Temperature sensor type: NTC (10K 0.5%) waterproof ;)
    I ordered the thermostat in our shop, we will see how it will work in the aquarium ;)
  • #42 17475824
    TechEkspert
    Editor  
    If it was to be constantly immersed in water, I would prefer to somehow additionally secure it with, for example, a heat shrink tube (unfortunately there will be additional thermal insulation ...), or some varnish?
  • #43 17475828
    pierotez
    Level 14  
    One note about this detector. On aquarium forums they reported after about half a year that the measurement started to go crazy. It turned out that the probe was corroded and gave other false results! There is a method for this, when I cover the probe with a heat-shrink and taped it on both sides and it's completely OK.
  • #44 17475842
    piterek-23
    Level 33  
    It was supposed to be so beautiful...
    Thanks, gentlemen, for the idea of a heat shrink T-shirt ;)
  • #45 17475853
    TechEkspert
    Editor  
    A long time ago, when I had an aquarium, I used a temperature controller with a thermistor and an operational amplifier controlling the relay to which the heater was connected. I placed the thermistor in a small dough aroma vial which was filled with sand and topped with paraffin and glue. Such a sensor worked flawlessly for many years. I was concerned about some great thermal inertia, but compared to the mass of water, it didn't really matter ...
  • #46 17475986
    piterek-23
    Level 33  
    Yes, I look at the photos, the NTC sensor is flooded in a metal housing, so why is it rotting?
    The weak glue (what's in there) lets the water through, or does the metal core rot?
  • ADVERTISEMENT
  • #47 17477183
    pierotez
    Level 14  
    The metal rots / bleds and gives a dozen%, but I don't remember which way.
    After heat-shrink or other means, the problem disappears, checked!
    Only I used a 2-ingredient, not a thermoglute.
    Simple bag, nothing to be afraid of and the probe would be replaced by the bank in six months ;)
  • #48 17477192
    vodiczka
    Level 43  
    pierotez wrote:
    Only I used a 2-ingredient, not a thermoglute.
    With two-component, it is enough to apply a layer of adhesive 2-3 times over the entire surface of the probe.
  • #49 17477336
    pierotez
    Level 14  
    I did not think about it. The T-shirt is easy and simple to make ;)
  • #50 17983633
    sergiuszf
    Level 12  
    Good day.
    I bought such a thermostat and during its conversion to control up to 999 degrees, everything worked fine until something suddenly happened.
    Namely, all 3 letters "LLL" jumped out suddenly during the work, means the limit of lower temperature was exceeded.
    But in fact nothing was surpassed, I rummaged through all the settings and nothing. When turned on, 3 "LLL" lights up immediately, which means it does not show the temperature, although the whole settings menu is working, and it should be.
    I tried to reset the controller at all by turning it on with initial simultaneous pressing of the "+" and "-" buttons. Nothing again. 3 "LLL" are displayed
    What could it be?
    Please help.
  • #51 17983657
    Rezystor240
    Level 42  
    sergiuszf wrote:
    What could it be?


    The probe just disconnected, maybe the wire has rubbed in some place?
  • #52 18022978
    sergiuszf
    Level 12  
    I've finally explained what the matter is. It turned out that the microcontroller has broken, the 6th leg of the controller that processes the signal sits on the ground. And, oddly enough, in the chip itself. I crossed the paths all the way to the chip, and it turned out that the 6th leg has a short circuit with the ground.
    It's very strange that everything else works, so all functions work except measuring the input signal.
  • #53 18210292
    dgproject
    Level 13  
    I'll include my few pennies.
    For me, I used these modules to heat the DHW tank through an additional SSR 10A relay and I must admit that it flashes as it should.
    In addition, I built a simple fireplace blower controller from 3 pieces.
    The modules manage the blowing force of a four-speed fan with a maximum power of 400W depending on the degree of heating (I only use 3 gears)
    For this purpose, I had to solder additional wires to the relays due to the lack of NO / NC on the PCB.
    Overall a very useful device.
  • #54 19059259
    draglukasz
    Level 12  
    I have a problem with this thermostat, because the temperature values are constantly fluctuating, with a constant temperature it shows changing temperature values every few seconds, eg 13.0; 13.7; 12.6, 13.1 etc.
    I changed the probes, nothing worked.
  • #55 19059478
    dgproject
    Level 13  
    Such their accuracy ...
    Unfortunately, the sensors used in these systems are not the same as PT100, which is a pity.
    For basic applications where there is no need to use high resolution measurements, they are rather suitable.
    For precision applications, I recommend PID controllers for PT100 and a solid-state SSR relay.
    Costs several times higher, but:
    Pros:
    + high measuring accuracy
    + Larger temperature ranges
    + More setting options
    + no moving parts (relays)
    + Alarm output
    And a lot more...
  • #56 20846901
    Fisqss
    Level 6  
    Hello,

    Let me start by saying that I am an amateur :)

    I bought the W1209 thermostat mentioned here, but the temperature sensor that I have to use has three wires (red, yellow, black). How can I connect it so that it works and shows the correct temperature since the thermostat has two wires? when I connect only 2 wires, it shows the temperature more than 3 times higher than the actual temperature.

    Thank you in advance for your help

    Regards
  • #57 20847154
    vodiczka
    Level 43  
    Fisqss wrote:
    I bought the W1209 thermostat mentioned here, but the temperature sensor that I have to use is 3-wire

    This thermostat has its own sensor, using another one (with different parameters) will give false measurement results.
    Write exactly what sensor you have.
  • #58 20847307
    Fisqss
    Level 6  
    Thank you for your answer. I have such a sensor "Waterproof temperature sensor DS18B20"
Reply Cool? Ranking DIY | New topic
Notify about new articles
Report a violation of the law

Topic summary

The W1209 thermostat is a versatile device capable of controlling both heating and cooling systems, featuring an LED display with a temperature resolution of 0.1°C. Users have discussed its applications, including controlling central heating pumps, electric heaters, and circulation pumps in various setups. The thermostat operates on a 12V supply and has a relay capable of switching 20A at both 14VDC and 125VAC. Concerns were raised about its accuracy at extreme temperatures, particularly in the negative range, and the lack of a buzzer for alerts. Users have also noted the importance of calibrating the device and the potential for software modifications. The NTC temperature sensor is waterproof, but users have reported issues with corrosion over time. Overall, while the W1209 is praised for its functionality, reliability issues with the relay and sensor longevity have been highlighted.
Summary generated by the language model.
Popular Topics
ADVERTISEMENT