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Sounds great, I am up for the challenge.

I presume you mean firmware for the Arduino Uno? I am currently using brewpi-arduino-uno-i2c-0.2.12.hex I can certainly use just the one "beer" temp probe, I wasn't sure that they weren't tied together logically. Thank you.

Now that I have a functioning test setup I would like to see what people recommend in regard to settings in brewpi-remix for a glycol setup. I currently use a PID ( SSbrewtech MTSS system ) that powers a 12v pump. When the PID calls for cooling the pump cycles glycol that is usually at 26...

I confirmed that putting the jumper back on did work.

Your probably right I never tried it that way since I already had it off... I'll try that tomorrow. Thanks.

Ok, thank you all for your help, I now have a i2c LCD that is "always on". For anyone with a similar issue I had to do the following steps to do this with my i2c LCD... ( http://wiki.sunfounder.cc/index.php?title=I2C_LCD2004 ) - apply 5v to the 2 pin "LED" pin on the back to apply constant...

Thank you for your help, but I am still not getting it to work. I wish I knew what I was doing wrong. I have ensured my ground is good, and jumpered it to pin 7 on the LCD component, reset the arduino and waited the 1 minute and the LCD still dims.

Ok, thank you I just would like to clarify as I am not very good with these components... pin 7 of which component? I have attempted jumpering pin 7 of the LCD board to ground and the LCD still turns off at 1 minute.

My LCD is still a problem, but it is actually just extreamly dim after 1 minute not off as I thought. I am using the sunfounder i2c 2004LCD, as shown here: http://wiki.sunfounder.cc/index.php?title=I2C_LCD2004 I have attempted jumpering 5v to the pins on the back of the LCD after removing...

Just a note for anyone that needs this info, I solved the devices not applying by using the "reset arduino to factory default" in the advanced settings under the maintenance panel, and then setting the devices.

Ok, I have made progress. I now have my temp sensors reading ( at least in the maintenance panel -> device refresh with read values. I also have my LCD ( i2c ) working once I found the proper 12c hex file and flashed my arduino manually via windows as I can not get the flashing to work from...

Ok, I have had some success with flashing my uno. I had to do it via windows using Arduino Sketch Uploader for Windows via: https://github.com/christophediericx/ArduinoSketchUploader/releases/download/v3.1.0/ArduinoSketchUploader-3.1.0.zip I now have the uno flashed and I can see the info in...

Ok, parts are all in... I have wired up a pi to a single arduino uno and the appropriate SSR - nothing wired on the relayed side. I have the pi updated to the current release of raspian I have loaded brew-pi remix with the command from the instructions: curl -L install.brewpiremix.com |...

Lbussy, you mentioned that you recommend a custom image for my setup with using Glycol chilling as the time restraints may be an issue. Can you provide me a link to download? I will be receiving my hardware today.

Ok, I have a pi a bit out of date it's a 3b... But I'm happy to get a new one if it not enough... I'll purchase the other items and start the build unless otherwise advised.

Excellent, I'll start ordering parts... So on that note... Raspberry pi 4? Which ssr? Thanks... I'd be more elaborate in my questions but I've been testing Homebrew.

Here are the fermenters and glycol system I am looking to control. The idea is to mount a touch display above the current glycol chiller on the left.

LBussy, thank you very much for your quick reply to my inquiry. On your first point I am not sure what the minimums are for on off, but you are probably right if they are fairly short. To keep within my current 1 degree F of hysteresis my system currently will run for approximately 4-5 minutes...

LBussy, I have been reading through this extensive thread as I am about to pursue a control system build for my fermentors. Before jumping in on such a quest of knowledge and potential pain I wanted to ask some hopefully simple questions that would assist me in a "Go!, No Go!" overall decision...

I am in, love your gear... hopefully adding to my collection!