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Sorry for the lag, I saw the original interest message while I was on vacation and forgot all about it until I came across my stack of unpopulated boards tonight. I have a few of the controller boards laying around and I think I have enough of the relay daughter boards to complete them. Give me...

Those relays are triggered by 12v. The ESP's GPIO is 3.3v, but I've found that the 5v modules will trigger just fine. An example. Just about every one of these off the shelf relays that I've seen are 10A 250V, so they are more than capable of switching your 12v solenoids. (The rating is the...

I think you're hinting at the idea of the traditional commercial setup where there is a glycol loop that is always running, and then a controlled valve at each fermenter tap into that loop. I'm not set up that way. Each of my fermenters has a cheap aquarium pump in the glycol chiller's tank...

I was thinking that there were screen shots on the main fermentrack site. Maybe someone should open a ticket in the github project to get that done ;) Here's a quick grab from a batch that is currently running on my system. (Ignore the wonky data for the room temp probe. It had fallen...

I did end up making a second revision of my PCB, no real functional changes just some minor "quality of life" things that bugged me while I had a couple running on the bench doing firmware change testing: I flipped the orientation of the ESP by 180* so that I could hook up the USB the board is...

Yes, the connection between the Pi and the ESP boards is WiFi and each fermenter has its own ESP controller. In my particular set up I'm running the Pi in an access point mode and connect it to the rest of my home network with wired ethernet. (There is no requirement for this, its just how I...

You got me all inspired to build a couple iSpindels this winter. The rPi that I'm running fermentrack on is configured to act as an access point for the brewpi-esp8266 boards, and it's mounted inside the MacPro case. I'm only going to need to go 6ft or so from the fermenter. Worse case, I can...

It is a lot of plugs. That's more of an effect of the economics of electronics than a real need. Holes in a PCB are free, and once you've paid shipping on 10 jacks, it's not that much more to get 50. I wanted each controller to have enough capacity to monitor: Beer Ambient room Glycol bath...

Earlier this summer I decided I was done fighting with trying to add features I wanted to CraftBeerPi (mainly because the project is pretty much dead, among other reasons that I won't go into.). Based on a suggestion from a friend, I decided to replace CBPi with fermentrack & brewpi-esp8266...

I went and looked at my box again, turns out it does have a slight taper. I guess I'll be getting some thin washers to shim it up. Thanks for the detailed procedure.

I finally had enough close calls accidentally dumping water on my march pump and I decided to mount the pump in a box. I used the same method that I've seen online where the pump head bracket is removed from the motor and the enclosure is sandwiched in between. All this is well and good, but...

I'm working on doing exactly this using a specialty aurdino board: http://www.seeedstudio.com/blog/2009/10/26/seeeduino-stalker-a-datalogging-arduino-and-more/ Coupled with some digital sensors I log readings to a SD card. It is not an out of the box solution, but I'm a programmer by trade...

I've found that mine behave a little better if I lube them up before assembly. Just hitting them with a quick spray from my starsan bottle has made most of my problems go away.

They replaced the fire extinguisher head with a normal tank valve. That was the part I had to buy. CO2 extinguishers are really nothing more than a special valve on a normal tank. Replace with a standard tank valve and you'd never even know it had a previous life (other than being bright red).

I got a good deal on by talking to a fire extinguisher supply store. They had a pile of old 5# CO2 extinguishers that couldn't be re certified for fire use, but were fine otherwise. (The guy said something about the fire marshal not approving units made by companies no longer in business)...

And I was worked up about paying a buck per... I'm still sitting on that McMaster Carr order, maybe I'll actually pull the trigger now that the weather is getting nice again. It's good to see that my calipers aren't that messed up.

I got a few of the CPC disconnects (http://new.midwestsupplies.com/polysulfone-quick-disconnects-1-2-male-npt-adapter-1.html) with a load of equipment I bought off craigslist. A couple of the o-rings are chewed up so I would like to replace them. I've found them online for ~$1 apiece, but I...