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Here is what my Heat Strike water script looks like. I will add a couple more lines so that it will start based on a timer or system clock time. The items in double quotes are GUI elements. I keep my global variables on a separate tab (Globals) from my main GUI (Wifi): I have another script...

You could have time and temperature global variables. A single script would execute and read those variables. All you would do is set those variables at the start of your session either manually or by data exchange from a recipe.

For anybody in the planning phase of their control panel I thought I would pass along something I discovered. I have a Square D QO main panel. An electrician friend put a 240V/50A drop in for me to a range outlet. He used 6awg wire and said I could go to 60A if I found I needed to (11,000W...

Thanks, I have read that VFD's aren't very good with single phase so I'll probably go to a DC pump.....don't want to start down the automated valve route yet, my brewhouse isn't that complex.

Thanks guys, I'm just use to VFDs, I'll figure it out

What are folks using for AC motor speed control on Chuggers, etc.?

The DS18B20 has a measuring range of 324F (180C). 11 bit resolution would theoretically give 324/2048 = 0.158 so a resolution of about 0.16 degrees F. That is a bit over 6 divisions per degree. That is best case. The accuracy remains at about 0.9F in any case.

I get wanting better resolution. When I worked as a commercial brewer our brewhouse displays and the vessel displays only read to the nearest degree. When I have info to 10^-1 I just use it as a trend indicator.

My 11 bit vs 12 bit and 0.9F accuracy were all in relation to 1% 1-wire sensors......your numbers are right inline with RTD accuracy. The difference between 1-wire and RTD is one order of magnitude (1.0C vs 0.1C) but the number of bits won't change that, accuracy is not dependent on the number...

From what I understand it is the first bit that is dropped for 11-bit resolution.....that is the 2^-4 bit. Accuracy is +- 0.5C (0.9F) so it doesn't seem that resolving out to -4 vs -3 would make much difference. Our critical temperature measurement is mash temp in brewing so I guess the question...

What type of sensor was this and what did you end up with for Kp, Ki, and Kd?

Here's a screen grab of my NTC and 1-wire sitting side-by-side......NTC is blue:

Question on AREF, if I am going to power the TF-4 with a separate 5VDC supply, should AREF be tied to that supply rather than the 5V pin on the MEGA? Thanks

Have another data exchange question. I noticed that the BeerSmith XML does not have the Post Boil Volume or Pre Boil Gravity data (or a lot of other data). For post boil I just brought the evaporation rate down and calc'd it on the BC side. Am I missing a way to get more data out of BeerSmith...

I'm going to be checking a new batch of DS18B20 sensors (10 total). Since I use a single physical port for all 10 sensors is there a convenient way to differentiate them so I can mark them for later reference? I plan to record a baseline temp for each one in a spreadsheet and will physically...

Thanks @RiverCityBrewer and @crane for that....it really helped, got it working! I've got to say that this is the best brewing software I have used, especially with the knowledge base here.

So, I'm tackling the data exchange design on my build and have the basic hang of it using Node-Red and watching Bryan's Youtube several times. I'm having trouble with time. BeerSmith seems to use minutes for it's time related values. I'm looking for help getting the change node (Beer Parameters...

I used the java version and after dusting off my java skills was able to compile it with my data and it ran.....coeffs were very close to the webtool.

Ha, you got me....I did find this, I have a question to them on the sensing output voltage range: Panel Mount +/-50Amp AC/DC Current Sensor Module Board, based on ACS758.

Couldn’t the meters and setup from theelectricbrewery.com be used?