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    Rob Baynes
    @rbaynes
    one sec, let me find a room
    Rob Baynes
    @rbaynes
    we have first friday lunch soon, jake, if we are non-responsive when you return, that is why
    Jake Rye
    @jakerye
    ok thanks for the heads up. sorry to bail. got sucked into compiling some documents….
    Rikuo Hasegawa
    @sp4ghet
    @jakerye I got 2.25ml/min at a accuracy of about 0.25ml
    I don't think it can get much smaller
    Anything past 40 stays super stable
    I will experiment with stuff inbetween 40 and 2 but it seems fairly linear
    blob
    each test is ml/min at MAX/HALF/0.02 "duty cycle"
    I think we should dilute to around 100x or even 1000x to get stable
    Rob Baynes
    @rbaynes
    Nice job @Spaghet ! I suggest you write up this in the wiki as a formal “pump test/calibration procedure”. After you have a few more data points, we can do the same test on another bot to see if they are the same.
    Adrian L. Lu
    @AdrianLLu
    Hi everyone, Firstly thanks to those who have shown their support for the Digital Farm Lab! It means a lot to us.
    I have a question about the brain. A few of us in the community have been working with it but, as you know, it's going through some changes now. I'm wondering how we should move forward with working with the brain? Should we hold off? Is there a version that we can put together?
    WebbPeter
    @WebbPeter

    We finished building two V2 kits from Fenome about two months ago here in STL. I have not yet been able to install from docker and flash successfully (the consensus on the forums at least is that that isn't currently working)? I have gotten a successful source install and launch of the brain about a month ago following Juhnke's documentation on the forums, but was unable to ever connect to the UI or view the webcam. I've been trying for the last month to get an install unsuccessfully.

    I definitely want to second @AdrianLLu's question: should I just hold off on trying to run the brain? In addition, it sounds like the decision is to move away from the current Pi/Arduino hardware, so I'm a little concerned the V2.01 release won't even work with our current kits.

    Rob Baynes
    @rbaynes
    Hi @WebbPeter and @AdrianLLu, the brain software has had some major changes to fix the critical issues we were having with it (arduino serial communication, dosing pump accuracy and a lot of other issues related to those two). We are in the final testing phase next week, then we start our own validation test grows the following week. If all goes well, I will put out a topic on the forum covering the details, release notes and how to upgrade to the latest software. The V2.x hardware has not changed, we are still using the raspberry pi and arduino, exactly as documented. Sorry for the lack of communication, the (small) full time software team has been heads down for the past 6 weeks trying to solve all the issues.
    Rob Baynes
    @rbaynes
    BY THE WAY: Welcome to the OpenAg chat channel! @AdrianLLu @WebbPeter
    WebbPeter
    @WebbPeter
    It's good to be here and I appreciate the update @rbaynes. I have been following this guide by Juhnke: http://forum.openag.media.mit.edu/t/fenome-food-computer-kit-build/1819/31?u=webb.peter but am now getting stuck flashing the Arduino. We are happy to help test alongside with our V2's by running a real grow, that being said is there a way to get around the serial comm problems in the meantime? If not we can just hold out on trying another install until you've finished your testing.
    Rob Baynes
    @rbaynes
    Our latest code is on the “develop” branch of openag_brain. That is what we are testing and it will become the long term stable release once we are done.
    Adrian L. Lu
    @AdrianLLu
    Happy to be here! Thanks for the update @rbaynes and no worries. I'm just looking to understand the timing. We'll take a look at the develop branch.
    Dan Nelson
    @DNels113_twitter
    Hey Guys! @WebbPeter invited me here, and its exciting to chat iwth you guys. I had built the PFC2.0 a few months back and we are working to open up the product for use with "residencies" here in NYC! Super cool stuff, and our first project is really exciting
    Rob Baynes
    @rbaynes
    Hi @DNels113_twitter, sorry we have been quiet this week, we were all at a conference. Back to the lab next week!
    tom
    @tew_twitter
    Hi Rob
    Rob Baynes
    @rbaynes
    Hi @tew_twitter !
    tom
    @tew_twitter
    Hit me next week if you have a signal we can do google hangout or something
    you know that you are old when you have a three letter twitter account
    Jake Rye
    @jakerye
    hey @rbaynes while testing the pfc ph loops out at bates i have noticed that every time after running a recipe to lower the ph (current value is 4, new setpoint is 3) the arduino bricks. any ideas?
    Rob Baynes
    @rbaynes
    well that isn’t good!
    while the arduino is in the bricked state, have you tried killing the brain, then connecting to the arduino from an interactive python shell?
    Jake Rye
    @jakerye
    agreed! haha, but setting the ph to 5 works as expected (e.g. the ph+ pump starts pulsing)
    Jake Rye
    @jakerye
    ^ i have not tried that yet
    Rob Baynes
    @rbaynes
    I suggest manually sending the arduino commands to play with what its response is to different pH commands
    Jake Rye
    @jakerye
    will do, thank you sir!
    Rob Baynes
    @rbaynes
    then maybe putting in some debug code to the src.ino sketch to send back a error message with debug help in it. that is how I try to figure out what is going on in arduino land
    feel free to make a GH issue and doc this too
    thank you for the help.
    I am currently running the “hotfix_arduino_handler_node_crash” branch of openag_brain for the test grow.
    you may want to start with that, since there are some other known issues with the AM2315 flaking out and causing the arduino to stop sending data.
    Rikuo Hasegawa
    @sp4ghet
    protip: you can actually send stuff over serial in pio device monitor -b 115200
    just type and hit enter
    Rob Baynes
    @rbaynes
    muy bien @Spaghet
    Rikuo Hasegawa
    @sp4ghet
    I have internet now so I can finally start doing stuff :cry:
    Rob Baynes
    @rbaynes
    How did you survive so long without internet?
    Rikuo Hasegawa
    @sp4ghet
    Like a tardigrade, I create a hard shell and lie dormant
    David
    @davoclavo
    @rbaynes I'm not a github connoisseur, but I think if you make changes to the develop branch they should be automatically picked up by your PR, so you wouldn't have to re-make it
    Rob Baynes
    @rbaynes
    I will try that, @davoclavo, thanks. I just pushed a few minor changes to your PR and now I have to wait for @Spaghet to review them. He is in Japan (and I’m in Boston) so there is a bit of a time lag.
    David
    @davoclavo
    also, let me know if I can provide any help/debugging with the docker build!
    Rob Baynes
    @rbaynes
    Thanks @davoclavo, I’m finishing the testing today.
    David
    @davoclavo
    Hi! I noticed that the UI was trying to fetch images from a url like http://10.0.0.12:80/../img.jpg - after digging through the UI code it seems it was set to that value because of a demo (OpenAgInitiative/openag_ui@a986714). Is there a reason to keep the images being fetched that way? (via nginx+ros image_saver)
    I assume there was a problem by fetching the images from the couchdb document attachments, but I haven't able to figure out the reason.
    Thanks!