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Matho's controller

Discussion in 'Gear and Equipment' started by MastersBrewery, 9/11/11.

 

  1. MastersBrewery

    Journeyman, the learning never stops

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    Posted 10/5/16
    Guessing this was done with a Uno, some of us are using the mega bet it would work on that.
     
  2. zwitter

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    Posted 10/5/16
    You can buy an rtc= real time clock on fleabay for only a couple of bucks.

    The ArdBir sw does have timing subroutine if you want to mod your addition.

    James


    Sent from my iPad using Tapatalk HD
     
  3. MaxN68

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    Posted 10/5/16
    ArdBir use system time of Arduino, if you want to use a rtc you need coding for rtc.

    Using rtc you need a new pcb board and an Arduino Mega only for a graphical pid?

    In the code you can find a graphical PID, temperature and pump BUT this is for helping the pid setting.
    You need other code for additional program and library.

    For activation you can find the variable on reserved debug section in the code.
     
  4. terragady

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    Posted 10/5/16
    or more simple, buy arduino nano (clone ~2$), temp probe (1$) connect it to computer and use as an additional thermometer and you can graph and sketch whatever you want :)
    you can add sd card and write data to it and read it later, you can add wifi as well and do it wireless. You can do it even without arduino using ESP8266 but this is a bit more work but you can have WiFi and even controller through website.
     
  5. GibboQLD

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    Posted 11/5/16
    Side thought -- if you have network connectivity (or the ability to add it), you could just push sensor values to a web API like Grovestreams or Plotly, which timestamps the data server-side and allows you to configure a graph that you could access from any internet-enabled device (tablet/phone/laptop/etc).

    You might get a small lag of a few seconds due to server-side processing (depending on how you set it up), but you could theoretically keep an eye on your brew whenever you have to step away for a short time.

    Here's what the Grovestreams one looked like when I used it for a DIY fridge controller (the graph is highly configurable) -- click for a bigger version.

    [​IMG]
     
  6. terragady

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    Posted 11/5/16
    there will be a lag for arduino and ardbir if you will do it that way. One more solution is to add ESP8266 directly to ardbir build and if its possible to connect same temp sensor to both, arduino and WiFi module, flash simple program to WiFi module and use thingsspeak to graph it or make http server on the module which is easy and possible. Actually this is a nice idea :)
     
  7. mariosab

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    Posted 11/5/16
    Thank you very much to Zwitter and to MaxN68, may be "the master" of this software version.
    I understand the lag issue because the printing routine.

    It is very easy to do it with another Arduino used only for this task.
    But I still thinking in the beauty of to use as low resourses as possible with only one Arduino UNO.

    The RTC option is cheap by itself, but leads to the change the shield and major changes in the sketch....

    Really is not an easy task.
     
  8. terragady

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    Posted 11/5/16
    check this out, latest post http://vito.tw/ you just need ESP module in addition nothing else
    and if you want only graph you can do what I was saying with also ESP and share temp sensor readings with it.
     
  9. terragady

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    Posted 11/5/16
  10. megabyte

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    Posted 3/6/16
    Can anyone direct me to the pinout for the probe used in the Matho's Brauduino controller?

    I used to wire them like this for my projects:
    Sensor Pinout.png

    But I'm pretty sure it's wired up differently for the brauduino.
     
    1 person likes this.
  11. GibboQLD

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    Posted 3/6/16
    Don't have a Brauduino, but had a look at the build manual PDF I saved a while back -- does this help?:

    [​IMG]

    Edit: This was bugging me so I (around 1m34s) -- it looks like the Brauduino has V+ and Data swapped compared to how you wire them up:

    [​IMG]

    You can see the pullup resistor on the yellow data line, the red wire for V+ and of course the black wire on the ground terminal. The terminal numbering on the socket should then be 1 = top, 2 = base/ground and 3 = middle.
     
    Last edited by a moderator: 16/6/17
  12. MastersBrewery

    Journeyman, the learning never stops

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    Posted 3/6/16
    Specifically is this one of Laels kits? If so probably best to post this in the buy or build thread, specifically related to his kit as your question doesn't look to be brauduino generic if you get my drift.
     
  13. zwitter

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    Posted 3/6/16
    Hi
    Regards pinouts.
    I am almost certain that
    tip is positive
    the collar is signal
    and the base is ground.

    I found that the new pre-wired versions from the kit has a short threaded section so had to rewire my older ones and went and bought a plug wired it up and then found the plug I bought would not fit through the hole so had to chop it off and then redo it once it was fitted to the sandwich base of my pot. This was only a week back so I am almost certain the above is correct but will check tonight and correct if it is wrong.

    Note that in the kit the socket has a resistor in line with the positive I think and that was so that when you plug the probe in it would not short the positive to ground and hence blow up the arduino or the probe. I am happy to say that little idea has saved soo many bits being blown up!

    Zwitter
    James




    Sent from my iPad using Tapatalk HD
     
  14. megabyte

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    Posted 3/6/16
    Perfect, thanks!

    Sorry, my bad yes it is specific to Lael's kit. I didn't think it fit into the "buy" thread and didn't notice the other build thread.

    Awesome, that backs up GibboQLD's advice so the world makes sense! Brew day is tomorrow, gotta get soldering!

    EDIT: Success, it works! Thanks for all the advice guys.
     
    Last edited by a moderator: 16/6/17
    1 person likes this.
  15. zwitter

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    Posted 3/6/16
    Pinouts for the temp probe.

    Confirmed
    Tip is positive with the 470ohm resistor in line between the socket and the brauduino board. Red wire
    The collar is the signal can be white or yellow
    The base is ground almost always black wire

    Confirmed by measuring one.

    James
    Zwitter


    Sent from my iPad using Tapatalk HD
     
  16. nfragol

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    Posted 11/6/16
    Hi guys,

    Can someone be so kind as to share the Grainfather version of Open Ardbir?

    Or at least share some fine tuned PID, windowsize, sampletime settings?

    I've been struggling for a couple of weeks with no real success, I would deeply appreciate it.

    Thanks.
     
  17. zwitter

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    Posted 11/6/16
    Hi nfragol

    To my knowledge there is no grainfather version of ArdBir

    The PID values are just like any vessel. There are guides on how to set and I think there are some values posted for others who are using the grainfather.

    It is easy to adjust "on the fly". Can just use water and set the profile and sit back and enjoy a brew while watching the temps.

    James


    Sent from my iPad using Tapatalk HD
     
  18. sixfignig

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    Posted 12/6/16
    I'm quite interested in eventually upgrading my rig to a 1V recirculation system with a PID/Matho style brew controller. I'm smart enough to not even consider 240v wiring myself, but don't think I know anyone that could help either.

    If any kind soul in SE QLD would consider lending a hand at some point please send me a PM. Thought I'd post it up here instead of starting a new thread.
     
  19. nfragol

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    Posted 12/6/16
    Hi James,

    There is a grainfather version of the Ardbir software but for some reason that's beyond me, they don't seem willing to share it with us.

    The thing is that I have tried all the previous published settings but nothing seems to come close to a working solution. I constantly overshoot by 2 degrees Celsius.

    One weird thing that's happening is if I change the temp probe calibration by 0.20 Celsius then the overshoot is even higher.
    I don't know what to think.
     
  20. NealK

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    Posted 25/7/16
    I have the original mathos controller and I think I have killed my arduino uno. It will not load any sketches and when plugged in I only get the solid green light and not the flashing light that I used to get. I have ordered another arduino from ebay and I hope that somebody here can confirm for me that I have ordered the correct model for a straight swap (after I have loaded ardbir to the new board).
    http://www.ebay.com.au/itm/162135730111?_trksid=p2060353.m2749.l2649&var=461106071583&ssPageName=STRK%3AMEBIDX%3AIT

    Cheers
    Neal
     

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