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Could you send a link to the proper relay that should be used for this, I'm having a hard time finding one.

I'm planning out my control box now and basing it on the BruControl schematic. I'm having some difficulty figuring out what to buy for the 30A DP 120V Coil. Is something like this sufficient? Also is this supposed to be switched on and off by a 12V source? It says discrete relay board or on...

Also, has anyone seen a significant performance improvement using the ESP32 vs something like the arduino mega or the ESP8266? I have both a Mega and 8266 on hand, but am not sure if I should buy a ESP32 considering it is supposed to be much faster.

Thanks for the reply. Do you have any suggestions for a 24x24 enclosure? I wasn't able to find anything on amazon and my local electrical supply shop wanted $320 for a 20x16. I was hoping to keep the enclosure around $100 if possible.

I've had issues in the past with clones of various Arduino models where the arduino bootloader on the Atmega chip was corrupt and had to be re-flashed. That's what I suspect is the issue here. Not a terrible re-flashing process, but in the case of Amazon I would just return and get another if...

Designing my first brucontrol system here and have a couple of questions. Do I need to buy a unishield for my mega? Also does this 17" x 14"x 6" enclosure look big enough for a 30A 2 Element System with 2 pumps, 9 Valves and 10 Temp Sensors + room to grow?

Also what about something like brucontrol?

Also, do I need something like the brewpi spark 3 to go along with a Raspberry Pi or can I just use the GPIO ports on the pi.

Similar question so I figured I'd ask on this thread. I'm looking to build a 3 vessel E-HERMS system with an automated controller with something like a Pi. My problem is that I'm getting lost with all the different software options like craftbeerpi, brewpi, brewblox, etc. Whats the best software...