G:
This work is based on Tuya BT5S Bluetooth module, which supports Bluetooth MESH (SIG) and can be used with my DIY multi-mode gateway.
This project uses Tuya's development-free water immersion sensor modified with a simple circuit. Its main function is to trigger an alarm when it detects rainwater and upload it to the cloud through the gateway. Can realize the needs of intelligent scene automation.
--The module configuration document is in the attachment--
Project plan:
1. Use BT5S Bluetooth module as the main control.
2. Powered by CR2450 button battery.
3. Use low-profile S8550 three-stage tube as signal amplification.
Disadvantages: Low voltage will cause the module to restart indefinitely. This will be improved in the next version.
Project pictures:
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