BWC V2B board - St. Moritz (model S100101, 6-wire) working

[suppressio]

I got my Bestway pump (St. Moritz, model S100101, 6-wire) working with the BWC V2B board.

Initially I used the direct lines (H1A for CIO and H2A for the display) and everything worked, including the display and controls. Later, I switched to the protected lines (H1B and H2B), with TX jumper set and all resistors and capacitors soldered (R3–R8, C3–C8). That setup also works without issues.

One note on the PDF guide: it mentions soldering only a subset of capacitors (C3, C4, C6, C7), which might be relevant for the 4-wire version. On the 6-wire S100101 model, I had no success until I soldered all resistors and capacitors.
That detail tripped me up at first, since the board powered up and connected to Wi-Fi, but couldn’t communicate with the pump or display.

Thanks for the project

[HenryGelderbloem]

I have the same model pump and I have a Miami. S100101 is used for several different Hot Tubs these days and is the successor to the egg-shaped pump, I'm not surprised that it work.