iSpindel Digital Hydrometer

Discussion in 'Electronics, Hardware & Software' started by Mattrox, 11/5/17.

 

  1. charliwest

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    Posted 4/10/17
    OK, I think I have the iSpindel version with the current brewpi non-legacy branch.

    If you are using docker, where you did with docker
    docker pull brewpi/brewpi-ubuntu
    instead do
    docker pull charliwest/brewpi-ispindel

    If you are using a “standard” older install, go to /home/brewpi and do git remote set-url origin https://github.com/charliwest/brewpi-script .
    Then go to /var/www/html (or wherever your brewpi web stuff is, for me its /var/www/html/brewpi because of proxying) and do git remote set-url origin https://github.com/charliwest/brewpi-www .

    Then give everything a restart. Please BACKUP everything before you begin, I take no responsibility if you destroy your brewpi set up. You should just be able to remove the extra parts by switching git remote back git remote set-url origin https://github.com/BrewPi/brewpi-script . etc.

    I have no idea what I am doing with this, I only got this far with previous work from @Gmasem @sbowler and of course @Elco, so thanks all.

    If you find things wrong I will try and help out as best I can, but really I am bumbling around in the dark here! [​IMG]

    Good luck!
     
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  2. kaiserben

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    Posted 5/10/17
    I've got as far as charging up the battery. Getting closer now ...
     
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  3. chris.w

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  4. farsonic

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    Posted 8/10/17
    Does anyone have the original EAGLE files for the PCB? I'm looking to get these made elsewhere as the linked supplier is super slow.....
     
  5. Paiakan

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  6. Uyllii

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    Posted 8/10/17
    I got round to building an iSpindle last weekend (after having parts dribble in for what seemed like forever). I have gone the wireless charging route too, and am using the following product:
    https://www.aliexpress.com/item/Wireless-Charger-Receiver-Module/32279028531.html

    It gets a little warmer than I would like and doesn't have two way communication smarts to turn itself off (like the cell phone ones do) but charges the battery successfully. I just turn it off when the battery lipo charger board lights up blue.

    The receiver coil fits inside the inner lip of the lid of the PET bottle so the bottle can sit upside-down on its lid and charge.

    I aim to never open my bottle once it is calibrated so I picked up a couple of magnetic reed switches (https://www.jaycar.com.au/glass-reed-switch-n-o/p/SM1002) from Jaycar.
    One to replace the toy switch (to turn off the device when sitting in my charging station), and one to replace the Wemos reset switch so i can double tap the switch to enter config mode.
     
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  7. chris.w

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    Posted 9/10/17
    Thanks @Paiakan - I've just ordered one of those to give it a try.

    I just saw suggestion from @Uyllii, which looks interesting too - may be better suited to PET bottle. However, about never opening the bottle once calibrated (a worthy goal), I understand the concept of magnetic reed switches but how would you use one to "double tap the switch to enter config mode"? In fact, with two such switches in close proximity, how would you target a particular switch in preference to the other?
     
  8. Uyllii

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    Posted 9/10/17
    Fair questions. I am yet to actually put the switches in place (the wireless charging is done and working and tested). The double tapping for config is the same way config is entered now, press the reset switch on the wemos twice in a row and it enters the config mode. I'll unsolder the reset switch on the wemos and put the reed in its place. Moving the magnet towards and away twice in a second or so should trigger the config mode.

    I hope the switches will be far enough apart not to trigger at the same time, with a weak enough magnet it should be fine. I plan on testing this last part after work today so i'll let you know how I go.

    I also realised I will need a NC reed switch or a SPDT reed switch (or even a tilt switch) to toggle the device on off when charging as I want it off when the magnet is in proximity.
     
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  9. Paiakan

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    Posted 9/10/17
    Very interesting hack by @Uyllii, although I'm afraid I don't have skills to unsolder the reset button from Wemos, but will wait for your final veredict.
     
  10. Lionman

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    Posted 9/10/17
    I got mine in under 2 weeks. I don't think that's very slow for custom pcb.
     
  11. bevan

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    Posted 10/10/17
    Me too.
     
  12. Lionman

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    Posted 10/10/17
    Sat down last night to assemble one and realised I forgot to order the gyro, DOH!

    What a bummer! Have to wait even longer for bits to arrive.
     
  13. Paiakan

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    Posted 10/10/17
  14. Gout

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    Posted 12/10/17 at 12:44 PM
    Is there anywhere online that will 3d print the cradle?
    Have asked someone to print it for me but not sure it will ever happen.
     
  15. bevan

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    Posted 13/10/17 at 2:40 AM
    Have checked your local library? Not all of them have one but some do. One close to me has a printer. What's your location, someone on here might be able to help.
     
  16. Gout

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    Posted 13/10/17 at 8:23 AM
    wow i never even considered a library, I might do a search.
    I'm in Ferntree Gully - Melbourne
     
  17. bevan

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    Posted 13/10/17 at 9:01 AM
    Ask your local library, they should be able to tell you if another one nearby has one.

    If you get stuck I should be able to get one made by a friend who did mine.
    I'm in the process of slowly get together the bits to build a 3D printer myself.
     
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  18. Gout

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    Posted 14/10/17 at 8:15 AM
    I have been helped out by a very helpful ahb member so now have the 3d printed part. Very greatful for that.

    Now I just need the remaining parts to trickle in (PCB, container and a few other bits)
     
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  19. farsonic

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    Posted 15/10/17 at 8:37 AM
    I got my cradles/sleds printed on 3DHubs and specifically used Kerry's Hub as the person doing the printing. This guy was fantastic and responded within minutes of me uploading my print request. He ran an initial test print on the sled to make sure it would work before committing to printing three of them. Shipping was quick and arrived in a few days. Highly recommend using this guy if you can. His 3DHubs URL is https://www.3dhubs.com/service/3d-easy-printing

    I also have a referral code, if you sign up for their service feel free to use this link.

    http://3dhubs.refr.cc/KQTZJCF

    Cheers

    F
     
    Last edited: 15/10/17 at 9:39 AM
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  20. farsonic

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    Posted 15/10/17 at 10:15 AM
    Rainy Sunday here today so decided to tackle the first iSpindle build. I have most of the components, minus the battery and weights.


    I had the sled printed online at https://www.3dhubs.com/service/3d-easy-printing and this was an amazingly great guy to deal with. Need to get the battery and the weights now.

    What did I learn from this....piece the entire build together as much as possible on the desk before soldering! The build process needs to be in the right steps otherwise you will end up removing stuff and restarting. I ended up using some risers on the PCB to attach the mini-d1 which I had to trim down to get this all to fit nice and snug.

    Overall, simple enough though :) I seem to be missing a photo of the final "stack" also...will look to upload soon.

    Beer I have at the end is my Citra Smash (100% Maris), which is incredibly simple and everyone loves it!

    F
     
    Last edited: 15/10/17 at 10:22 AM
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