askDrAlex
askDrAlex
  • Видео 4
  • Просмотров 4 185
WashbearyPi Episode 3: Now washing! A washing machine controlled by a Raspberry Pi.
Finally, it is done: All original control electronics was removed from a washing machine and a Raspberry Pi has taken over control via a self-built interface board. The control program running on the Pi is rather preliminary (no graphical user interface yet, just a command line, and the wash program is semi-automatic only, requiring user input a few times), but: it is washing now! In this video, a test run is presented.
[Btw, typo in the log messages: should be rather 2.000 ms than 2000 ms]
Просмотров: 1 501

Видео

A 230V AC lamp dimmer circuit for a Raspberry Pi
Просмотров 9525 лет назад
In this video, I am showing you an AC lamp dimmer circuit, based on the phase cutting technique, which is controlled by the GPIOs of a Raspberry Pi. It uses a BT139 triac to switch the lamp, and a transformer-based zero-crossing detection circuit.
WashbearyPi Episode 2: Switching 230V AC with the Pi, and preliminary motor speed control
Просмотров 3605 лет назад
In this video, a triac-based circuit is presented which allows one to switch on and off 230V AC loads with the RaspberryPi. In addition, an attempt of controlling the speed of a washing machine motor with this circuit is made. It works in principle, however, motor acceleration is anything but smooth.
WashbearyPi - controlling a washing machine with a RaspberryPi. Episode1: Motor pinout.
Просмотров 1,4 тыс.5 лет назад
WashbearyPi - controlling a washing machine with a RaspberryPi. Episode1: Motor pinout.

Комментарии

  • @ITpanda
    @ITpanda Год назад

    We have a Maytag washer that had the control board go out just after the warranty period ended. Sadly the cost of a new board cost ½ the cost of a new washer at the time. I'll probably be referencing your and others journey on similar projects. Thanx for sharing.

  • @ryanfilbert3932
    @ryanfilbert3932 Год назад

    Hello. I am really interest with this project, do u have any contact? So I cam contact you and ask more about this.

    • @askdralex3487
      @askdralex3487 Год назад

      Hi! For more information, you can first have a look at the corresponding thread in the RaspberryPi forum: forums.raspberrypi.com/viewtopic.php?t=259963 Unfortunately, this thread got closed due to inactivity. However, I could ask the administrators to re-open it, such that we can discuss there - provided that you get registered on the RaspberryPi forum.

  • @thatguyalex2835
    @thatguyalex2835 Год назад

    You are very knowledgeable in this RPM ramp up stuff. Hopefully we have Raspberry Pi appliances in the near future. By the way, to dry clothes most efficiently, it is best to keep 1400 RPM for 5 minutes. :) That is what my LG does.

    • @askdralex3487
      @askdralex3487 Год назад

      To be very precise, the spin cycle that I show in the video is just the first intermediate spinning. Typically, a wash program is structured as follows: - Cleaning with warm water and wash powder - Intermediate spin #1 - Flushing with cold water - Intermediate spin #2 - Flushing with cold water - Final spin (longer, few minutes at high RPM) The video ends after the second step. I did not include the other 4 steps, since they would have been a (rather boring) repetition, and the video is long enough anyway. But if you design your own wash program, be sure to include all steps :-)

    • @thatguyalex2835
      @thatguyalex2835 Год назад

      I understand. Most washers do the exact steps that you describe (wash, intermediate spin 1, rinse, intermediate spin 2, rinse, final spin). For me, I sadly don't own a Raspberry Pi, nor have the technical skills to install one in a washing machine, plus my machine is 0.5 years old, so is new. But I always follow the tech trends by watching videos on the Raspberry Pi, as it is impressive that a 40 dollar computer could do so much. Hopefully, all appliances use the Pi as their processor, instead of proprietary stuff. If the Pi fails, one could always purchase a new one, and flash your wash software onto it, in an ideal future world. :) Imagine integrating the phone and installing new wash programs, or customizing a temperature (eg. 25°C, or 77°F wash), with a 1750 RPM spin. But hey, that would burn out the motor. Would be fun to see though. Cos, I'm a young man who finds that stuff funny.

  • @GigaZiv
    @GigaZiv 2 года назад

    Very nice! Well done

  • @claytonhaun
    @claytonhaun 2 года назад

    Hello! What is the status on this? I'm in the apparel industry, and there's a huge need for this in fabric dyeing. Being able to dye garments on demand is a difficult ask, since you're either stuck with a 5 gallon bucket, a washing machine, or $100K+ machines. I am absolutely interested in this!

    • @askdralex3487
      @askdralex3487 2 года назад

      Wow, I am impressed that you know an industrial application for the WashbearyPi! Regarding the current status: I hope you watched the "WashbearyPi Episode 3" video that I uploaded 3 months ago? If not, just have a look. In short: It's washing! You can control the drum motion (e.g. 1 hour of periodic CW and CCW rotation), the drain pump, the water inlet solenoid etc. on the command line of the Pi. So now YOU can tell the machine in detail what to do. You are no longer bound to the manufacturer's pre-defined wash programs. Would this meet the requirements of your application already?

  • @jacob6666666
    @jacob6666666 2 года назад

    Im sorry this video is so underrated :(

  • @bigun89
    @bigun89 2 года назад

    YES!

  • @chaswinder
    @chaswinder 2 года назад

    Nice project. What's the effective adjustment range that this gives across the full mains cycle, eg. is it say 5%-95% of full power or closer to 0%-100%? Thanks

    • @askdralex3487
      @askdralex3487 2 года назад

      Well, 0% is easy to achieve (you just never ignite the triac), and 100% is also easy (you keep the triac's gate electrode permanently energized). Or maybe rather 99,9x% than 100%, due to intrinsic losses in the triac. Everything in between depends on how accurate your timing is. My simple zero-crossing detector has a slight phase jitter, so I would say that 0-2% is hard to achieve. This requires triac triggering shortly before the next zero-crossing of the line voltage. If you happen to be a bit late (after the zero-crossing), you will accidentally send the entire next half-wave period to your load. In short, I guess 0% and 2-100% should be feasible.

  • @bigun89
    @bigun89 2 года назад

    I was thinking about this exact thing. A lot of waste can be avoided once the control board is no longer a concern. I don't know if your still thinking about this project, but I hope other people start pitching in.

    • @askdralex3487
      @askdralex3487 2 года назад

      Don't worry, my project is more than alive! The WashbearyPi is now washing, and an old washing machine with broken OEM control electronics is getting a second life. I just uploaded a new video in which you can see the WashbearyPi in action...!

  • @cheesedoff-with4410
    @cheesedoff-with4410 3 года назад

    I've seen an Arduino used to repair a dishwasher, it even added new programmes. And washbeary is a project close to my heart; how many of us have had to discard an appliance simply because of excessive prices for PCB contoller boards?

    • @thatguyalex2835
      @thatguyalex2835 Год назад

      Agreed. This man is on to something. Imagine if appliances had Raspberry Pi controllers from the get go. Say you bought a 2015 washing machine, and the Raspberry Pi computer gives up. One can replace that chip for under 40 bucks. Sadly, appliances today use in-house chips that cost hundreds to replace. And hey, a Raspberry Pi has much more computing power compared to a Maytag chip or GE chip.

  • @Lasseu
    @Lasseu 3 года назад

    w00w, im not buing a washing machine ever again :D I'll be following this one.

  • @jalofanclub
    @jalofanclub 3 года назад

    I have been thinking about doing this for a couple years now. I’m glad you’re documenting it because I’m very much a noob!

  • @MartinMenge
    @MartinMenge 4 года назад

    This is an important project. I wonder how many perfectly good washing machines have ended up in landfill simply because the board isn't manufactured anymore...

    • @Lasseu
      @Lasseu 3 года назад

      and the effing price for those that are still in production.

  • @rvamerongen
    @rvamerongen 4 года назад

    Very interesting, thank you. Keep them, those video's coming.