Recent content by jgalati

Whew read threw all 42 pages, this project has certainly been a journey! The 40A SSRs that the majority of us use require 7mA - 20mA. The GPIOs on Pis are rated for 18mA, but combined on the 3.3V rail is 50mA. I haven't started playing yet, but I'm definitely curious if anyone has had...

Hey all. Curious if anyone has any insight into why stir bars have become so popular in homebrewing as compared to shaker tables. In the rest of the world of microbiology, the very few labs I've seen use shakers. Is it possible that the stir plate solution is just cheaper? Curious as to...

Ah very nice! Do you have feedback temperature control?

With no load connected to your relay, you are in a high impedance state. Because of this, your output voltage is now "floating". Depending on your home grounding and your brewery system grounding you can have variances in an "off" state relay. You'll notice that if you connect a 2k resistor to...

For science, did an experiment with a 1.070 porter and a 1.069 CDA. Both had fermcap during boil, but only the porter, on right, had fermcap added to the fermenter (10 drops). Both had a 1.6L starter pitched directly into the beer, no crash cooling. Both starters ran for 13 hours. I used US-05...

Intel

Gents I swear to god eventually I'll update this to its full glory, but I just started working and no kidding that once you get a job you don't have time for anything. Always thought you guys were crazy. HAH.

Numbers in demo video are obviously not to scale :p

I soldered up a relay board and used the FETs as switches to "relay the relay" The estop is the GFCI which will be installed right after the panel, of which there will also be a disconnect bar. If I have some money to throw around I'll put a shiny red button in, but as of now, if the...

here's a demo of the interface with dummy drivers built in: i'd suggest 720p so you can actually read it lol https://www.youtube.com/watch?v=VkiRQkAa12M&feature=youtu.be

The BBB can be thought of as a Programmable Logic Controller, but one you don't have to program in ladder logic. The beaglebone can take up to 28 analog inputs, and 50 digital inputs (why you'd need that many idk...) and can then control any electronic device such as a pump, ball valve, solenoid...

Yeah were hard plumbing copper out to the brewery now

It has. I got an A in it. But I'm still working on it to get this puppy finished. Next project on the list is to run 240 volt to the shed as well as fixing any algorithm errors that will come up while brewing a simple water batch

Although I haven't updated this forum recently... here's a list of things we've accomplished: (this is still a work in progress) Note this is for an electric brewery, but I'll add expandability for natural gas or propane users soon. (As well as hybrid support for those who use gas to heat...

I'm in the process of moving back as I just graduated. I'll call you guys as soon as I can... Sorry for the wait