Recent content by FriendOfBrewers

I don't have experience with a physical panel, so I can't answer your question from experience. However, I can say that I miss having some physical buttons while I'm in the middle of brewing. With the right software (or changes to Strange Brew Elsinore), you can have both. For instance, SB...

Yes, the BrewPi sensors are fairly new (maybe on the market a month or so). I agree they look like the perfect sensor for a RIMs tube, and I could see myself using some to measure temps in and out of my plate chiller. Splitting the shipping with a group would make the price easier on the wallet...

What type of flow switch are you guys using? Something like this? http://www.ebay.com/itm/Magnetic-Stainless-Steel-Water-Sensor-Flow-Switch-with-inner-thread-/181692652748?pt=LH_DefaultDomain_0&hash=item2a4db9dccc

I understand your apprehension. It's too bad that thermowells are so expensive. However, I have about a dozen DS18B20s monitoring the temperatures in my home that I have been polling every 3 seconds for the last seven years and have yet to see one fail. On a related note, the BrewPi folks...

I have a suspicion that these messages aren't the cause of your problem. My system also got errors about lshw, but it seemed to work fine in spite of these errors. If you're using a Raspberry Pi, you should be able to eliminate the lshw messages by running: sudo apt-get install lshw

For my RIMS tube, I coated the 18B20 in thermal grease and put it in a thermowell like this: https://www.brewhardware.com/ProductDetails.asp?ProductCode=Thermowell I also use a couple of these thrown into the hot liquor tank and the boil kettle...

My mash tun is also a Sanke keg and I made my RIMs tube out of 1.25" stainless (8" nipple, two tees, a 1" bushing and 3x .5" bushings). I use a 5500 watt element running at 120v. My RIMs tube has a B camlock on the out port and this connects directly to the A camlock mounted on the keg. Here's a...

Here's an idea for the software: Add support for an external switch/button to be used as a trigger. My use case is this: My Raspberry Pi is headless and stays within a couple of feet of my pump, rims tube, etc. The desktop running the web interface is about 20 feet away. During the brew there...

jangevaa, 1-Wire allows for > 100 of devices on a single bus and OWFS has been tested with over 100 devices. I'm curious why you say it supports "up to 10 on a single pin".

The mash tun was used for it's first brew last night. Here's a picture of it in mid-mash. (Looking at it now that I've covered it with two layers of reflective insulation and a yoga mat, it seems like all that time I spent polishing it will go unappreciated. :) )

Would you mind sharing your P, I, and D values along with the volume and heating element you used?

I looked at Doug's code and see that it does support fractional seconds. The duty cycle is calculated to thousandths of a second (millisecond). For your example above, the 10 second duty cycle is stored internally as 10,000. When there's a call for 75% power, the on time is calculated as...

I found one of the partially-rubber-coated kegs at a salvage yard and decided it would make a good mash tun. I have attached a couple of pictures. There's one showing what it looked like when I picked it up (I made sure a 2" tri-clamp would fit). While cleaning it up, the bottom the came off...

I've updated my Raspberry Pi kernel and these instructions helped me get my sensors working again with w1-therm, but OWFS no longer works. Any clues how to get OWFS working again?

Here's some notes on my attempt to tune the PID. With the pump at full speed, I got closest to my set temp, 153 F, with P=65, I=1, D=0. It makes sense now that I think about it, but I was really surprised when I slowed the pump to see how much these same settings caused oscillation. The...