Add support for Xiaomi Smart Dehumidifier Lite (xiaomi.derh.lite) - #2083
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Add support for Xiaomi Smart Dehumidifier Lite (xiaomi.derh.lite)#2083bramkragten wants to merge 4 commits into
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Add a new MiotDevice implementation for the Xiaomi Smart Dehumidifier Lite (xiaomi.derh.lite), covering power, operation mode, target humidity, current humidity/temperature, buzzer, indicator light (on/off + brightness), child lock and the dry-after-off feature, plus fault reporting with a convenience tank-full property. The MIoT mapping follows the published spec (urn:miot-spec-v2:device:dehumidifier:0000A02D:xiaomi-lite:1). The Delay service (siid 8) from the spec is intentionally omitted, since the real device does not appear to expose it. Fixes rytilahti#2059
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #2083 +/- ##
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+ Coverage 84.31% 84.54% +0.22%
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Files 201 204 +3
Lines 20656 20953 +297
Branches 1121 1124 +3
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+ Hits 17417 17714 +297
Misses 3047 3047
Partials 192 192 ☔ View full report in Codecov by Harness. |
Testing against a real xiaomi.derh.lite (firmware 1.0.3@BL602) shows the Delay service (siid 8: delay, delay_time, delay_remain_time) responds with code 0 for all properties, so it is part of the device after all. The earlier omission was based on a community integration that simply did not map it; the published spec was correct. All mapped properties confirmed against real hardware via status().
bramkragten
marked this pull request as ready for review
July 17, 2026 13:21
Wrap an over-length ValueError message (ruff-format) and add tests for the power-off state and the invalid-value fallbacks (fault, mode, led_brightness), bringing the new module to 100% coverage.
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Summary
Adds a new
MiotDeviceimplementation for the Xiaomi Smart Dehumidifier Lite (xiaomi.derh.lite), addressing #2059.The device uses the MIoT protocol. The mapping follows the published spec (
urn:miot-spec-v2:device:dehumidifier:0000A02D:xiaomi-lite:1) and every property has been verified against real hardware (firmware1.0.3@BL602).Supported functionality
tank_fullproperty)Notes
miio/integrations/xiaomi/dehumidifier/._mappings;DeviceFactory.class_for_model("xiaomi.derh.lite")resolves toAirDehumidifierMiot.Testing
tests/test_airdehumidifier_miot.py(status parsing + all setters + validation). All tests pass;ruff check/ruff formatclean.xiaomi.derh.lite: every mapped property returnscode 0,status()parses correctly, and the write path (set_target_humidity) was confirmed. The Delay service (siid 8) is present on the device and is included.Fixes #2059