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Gardena Dual Water Control Bridge
FirmwareAutomate both Gardena watering outlets locally
This ESP32 bridge connects a Gardena G-19034-20 Smart Dual Water Control to an MQTT broker over Bluetooth. It exposes both valves, remaining watering time, battery and connection status, with automatic discovery in Home Assistant.
It needs a supported ESP32 board, Wi-Fi and an MQTT broker. The author verified both valves and persistent Bluetooth bonding on this exact controller. Its configuration page has no password, so keep the bridge on a trusted local network.
- Water as part of home routines
- Water without a cloud account
- Check watering and soil conditions
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