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V45 already supports 12 bit on the GC. This tripped me up when I was calibrating on v45, I was expecting 10 bit based on the documentation but it is 12 bit.

On arduinos, analog ports can be used as digital pins also. With the Brucontrol interface as I understand it, they can only be analog inputs. On the mega or grand central this would add 15 potential digital io pins if you don't need the analogs.

Speaking of ports, why not enable analog ports for digital i/o?

You may get a stuck mash if the recirc flow is too high. My last batch I upped my flow from 1 gpm to 2gpm. The flow steadily reduced from 2 to 1.5 over 30mins as the bed compacted. This will depend on a lot of things like your grind, mash composition, vessel and screen, but not having control...

Thanks, and I have. I was hoping to get some opinions on how this yeast compares to other techniques. What are the pros and cons?

@Cool_Hand_Luke are you still providing this yeast? what is the consensus on using this yeast versus other low alcohol methods? I would like to make a batch, but don't have time to explore all the different techniques, so I am looking for a solid option to start. I am interested in a happy...

I am doing this with a proportional valve and amplifier board, both from Brucontrol. I am using pwm output and a pid element. I set the cold water manually and let the pid control the flow based on the outlet temperature of the chiller. I am still fine tuning, but it has worked so far.

Only one return in a script, or you can only call one subroutine at a time?

I think I know the answer to this, but is there anyway to send arguments to a subroutine, similar to how you would in most programming languages? I want to call the same subroutine with different parameters. If not, are there any cleaver ways to do this besides creating a bunch of temporary...

Ok, maybe you trust Wikipedia more? PID controllers work best when the loop to be controlled is linear and symmetric. Thus, their performance in non-linear and asymmetric systems is degraded. A non-linear valve, for instance, in a flow control application, will result in variable loop...

PIDs assume linear response. The first 20% of the proportional valve shows no response and this will cause issues. Here is a reference that describes the issues I am seeing and I believe others have faced. https://blog.incatools.com/pid-tuning-example-controller-nonlinear-response-valve My...

@BrunDog can you unveil some mysteries behind how the pid is implemented in Brucontrol? What values is it using in the calculations for input and output variables? For example if I have two analog signals, is it using the 10 or 12 bit value? What about rtd's running on the digital bus? Is there...

Returning to the PID questions. Thanks @clearwaterbrewer for the info. I have had some success this week and now have a couple PID loops working, although they are not ideal. I can set my sparge so that the HLT flow to the MT and the Wort flow to the BK are both set to 1gpm. I was able to...

Can you not do math in an "if" statement? I was trying something like this and it ignored the 2. Do you need an intermediate variable? If "MTVol" value == "strikeVol" value - 2

Feature request: add optional PID parameters to deadband device. This will enable smooth ramping, minimal overshoot, but not over control around the setpoint.

Does someone have starting PID parameters for flow control using a proportional valve through a RIMS tube?

They changed the wiring on the recent batch. Red-power, black-ground, blue-signal, and silver is the shielding.

My comment was more around arrays in general being much more efficient for coding. If you have 10 devices and 10 steps, it takes at least 100 lines of code to set them individually. Looping with an array would be 10 at most. Much less error prone too.

I think I saw this before, but a feature request is arrays in scripting. Really just an indexing variable. I would like to configure elements like valves based on a step in the brewing process. It would be great if I could set a variable array of valve states by step.

One more question on heating element setup. From the user manual I think I am drawing these conclusions: For a HLT with and a RIMS using heating elements and SSR, set up as Deadband device to control temperature. For the BK since we want control boil rate, not temperature and eliminate...