Working in 2021 Helsinki with S100102 pump (in 3D printed case for V2B PCB)

[robxbl69]

All working in 2021 Helsinki with S100102 pump using kit from @metaljay. For some reason the blue level shifter he supplied didn't work (even with both cables plugged together on the hwtestinfo.html page), so I changed for a red one and all works just great. That's just the way it goes...

I added JST PH connectors before and after the resistors/caps, just in case I needed to bypass them (to save de-soldering the cables). This also gave me somewhere to connect 5v from my bench PSU for testing.

The sound/beep is now a bit weird which I've read can be fixed by bypassing the PCB and linking the sound cables together (which in my case is the two black wires).

Question: what will I loose/miss out on if I don't let the ESP8266 produce the sound?

The PCB is mounted in my own case design which just slides and clips together (no screws), holding the PCB on the pillars/posts as it slides in. I'll make the stl available (if anyone wants it) ASAP once I've tidied up a couple of things.

Pictures attached of build and install.

I'm so glad I stumbled across this project. I think it's awesome as it's frustrated me since I bought our first hot tub (in 2017) that I can't monitor or control the pump remotely. Why this isn't build it as standard these days I cannot understand!

Thank you @visualapproach

Rob