[ST Edge] SONOFF Hydro ONE / DUO family (SWV-ZFE / SWV-ZFU / SWV-ZNE / SWV-ZNU / SWV-ZF2E / SWV-ZF2U)

New version: 2026-08-03T18:19

  • changes only total_duration_min at bytes 2-3 of 0x501D;
  • preserves bytes 1 and 4-12 from the fresh device read;
  • verifies duration mode and the first duration field only;
  • leaves the serializer, read-modify-write sequence, delayed readback, timeout, retries, and command isolation unchanged.

Code on GitHub and yes, it is a little bit more complicated (generated docs) than the PR for the official driver.