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I'll get working on it. Just importing the EAGLE files into KiCad is leaving some odd artifacts, so I'm thinking I'll need to re-draw them. May take a little while, but I'll put in a PR when they're ready. I now have a sensor board populated with three 18b20s and was able to get them assigned...

This discussion probably belongs more over here than on the Fermentrack thread, so I'll post the link to at least connect the two: https://www.homebrewtalk.com/threads/fermentrack-fermentation-monitoring-brewpi-www-replacement-for-raspberry-pi.649303/post-10306261 Discussing using Fermentrack...

For the sake of anyone else who might want to try this: The size of the temp sensor jack on the Icemaster Max 4 (and, I'm sure, on the Max 2) is indeed 5521--5.5mm OD, 2.1mm ID With resistor values of 33k and 8k2 (based in part on what I had at hand), my controllers read 25°F on the low side...

Boards are here, complete with SMT assembly. I've built up two of the boards, and plugged an ESP and a 2004 I2C LCD into one of them--it flashes fine, talks to the display fine, comes up on the network fine. Don't have it talking to temp sensors yet, but that should be soon (there isn't a...

Sure is: https://www.chemworld.com/Corrosion-Inhibited-Propylene-Glycol-p/ipg-1.htm Add a colorant too if desired.

Funny, a friend of mine helped me with this beer, and that was his response when I told him it had burned: "Rauchbier!" But sadly they don't; "smoked" smells very different from "burnt."

All I have at the moment is this: https://devices.esphome.io/devices/Sonoff-POWR316-16a ...and: https://github.com/BernhardSchlegel/Brick-32 They don't seem to match, and I can't directly account for that. But main.cpp at the latter looks like it has pin definitions right at the top.

I don't for the bag (I use dryer sheets in some loads, but I air-dry the bag). All I can say otherwise is that it comes out looking clean. I haven't tried a hot PBW solution to clean it, but that'd be easy enough; that's what I use to clean the kettle with anyway.

I'll admit I haven't measured it, but around 3/8" diameter is about what I had, and is consistent with prior batches. My normal cleaning regimen for the bag has been to run it through the wash. I used 2 lb of the candi syrup in this batch.

...and a Kasa plug if you need to control another device. I have a couple of the Sonoff units on the way, so I'll see what I can do with them.

OK, a single row of pins is a lot closer to what I'd seen. Does it need to be 320x240 (that's the bulk of what I'd seen)? Given an appropriate resolution, I don't suppose the physical size really matters.

Interesting, and thanks for the pointer. I don't see a solution there (other than "don't use a protein rest"), but at least it seems to corroborate that as a possible cause. And there was some off-white "gunk", for lack of a better word, on the outside of the bag.

I guess I wasn't very clear--leaving aside the "official" D32 pro TFT display with its cable, what should I be looking for, and how would I connect it? Nothing of what I'm seeing on eBay has a matching connector, so it isn't quite clear what I should be shopping for. Understood. Should I keep...

...and a further question: with the ESP32 build, it looks like you're preferring a TFT screen to the 2004 I2C text display. You link to an "official" 2.4", 320x240 TFT display and cable, which connects directly to a D32 Pro, but you also have a 10-pin connector footprint on the PCB that's also...

No, I don't. I included it as it was part of the recipe, but I more often do single infusion.

I can definitely see the logic in that. I'm not sure I'm sold, but I can easily understand how it would look like a culprit, and it's easy enough to modify the process to avoid that as a problem--just add it after flameout, with the recirc pump running. I recall seeing a video on YT (I think...

Mashdar, that's correct. The bag sits on the false bottom, which keeps it off the element by an inch or more. The pump is circulating wort in that space (as well as sending a little bit over the top) from the start of the mash until after mash out at around 185°F, whereupon (following Bobby's...

My understanding is that the Sonoff units in question are based on the ESP32, not the 8266. But yes, it does have only the one sensor wired to it. I'm sure others could be added (it's still a 18b20, so still uses the Onewire interface), but that'd be kind of hacky. I'd missed that earlier...

Other than all the burned-on residue (I've managed to clean most, but not all, of it off), yes--no apparent damage to the surface, and it appears to be a constant diameter from end to end.

I suspected the syrup, but that's added near the end of the boil--it wouldn't explain darkened wort at the beginning of the boil, would it?