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Old 05-07-2014, 12:21 PM   #21
hightechlofi
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Once I get the code a little cleaned up and further along I will be open sourcing it on github. I will be starting a new thread here for the project once I reach that point.


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Old 05-12-2014, 08:04 PM   #22
alien
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I recently designed a prototyping cape for BB/BBB. It's completely open source, so feel free to copy, distribute, and adapt for your own purposes !

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Old 05-13-2014, 12:31 AM   #23
bonebrews
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A proto cape is a definite must for this. I purchased a bunch of pcb screw terminals to connect everything to my BB. It really makes for a clean install.
It is actually very simple to have true PID control on the BBB. There are NodeJS libraries for practically everything- GPIO control, ds18b20 reading, PID control. They all execute necessary commands with a single line of code. I used socketIO for a low-latency way of communicating between the web browser and the node server. SSR control is instantaneous and will switch as fast as you can press the button. It eliminated the need to ever refresh the page or use a more demanding method like ajax to update the data sets.
A BBB/rPi is a great tool for brewing because of the available sensors and expansibility of the system. I've implemented timers that save state if you closed your browser and working on brewing calculators. You could really fully automate everything- import a timeline of events, start the timer, and watch the system do it all. But where's the fun in that right?

Here's what I've been able to code on the UI so far. It's worked perfectly for two brews.

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Old 06-29-2014, 05:48 AM   #24
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BoneBrews,

I am looking forward to seeing your setup and code as well. I am at the deciding stage of whether to go RPI or BB/BBB.

-G

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