WPCZ1 - Water Pump Controller Zigbee

Devices & Integrations
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WPCZ1 is a modification that converts existing Zigbee switches on the market into water pump controllers (using electric float switches).

This first version supports Xiaomi Aqara switches QBKG11LM (single switch) and QBKG12LM (double switch), which have a neutral wire connection.

Screenshot_20250518_192418_SmartThings
Screenshot_20250518_192418_SmartThings1080Ă—2868 146 KB

Features

  • Controls the water pump using an electric float switch like traditional systems, while also adding manual on/off control via the button on the controller.
  • Supports remote control via smart home applications.
  • Displays parameters such as power, voltage, current, number of on/off cycles, etc., making it easy to monitor pump activity and detect abnormalities (overload, overheating, water leakage causing repeated switching, etc.).
  • Built-in protection against overheating (above 55°C) and overloading (above 2000W).
  • Controls pump switching at near-zero voltage points to reduce electrical arcing, thereby extending relay lifespan.
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[quote=“lpthanh, post:1, topic:300457”]
WPCZ1 is a modification that converts existing Zigbee switches on the market into water pump controllers (using electric float switches).

This first version supports Xiaomi Aqara switches QBKG11LM (single switch) and QBKG12LM (double switch), which have a neutral wire connection.
[/quote] Human To Cat

Hello,

WPCZ1 – Water Pump Controller for Zigbee Switches
WPCZ1 is a hardware/software modification that transforms standard Zigbee wall switches into intelligent water pump controllers by integrating electric float switch functionality.

Xiaomi Aqara QBKG11LM (Single switch, neutral wire)

Xiaomi Aqara QBKG12LM (Double switch, neutral wire)

Key Features:
Converts existing Zigbee wall switches into automated water pump controllers.

Uses electric float switches to detect water levels and control pumps accordingly.

Ideal for automating sump pumps, tanks, and other water systems.