Smart Water Leak Sensor

Water leaks are a leading cause of property damage in both residential and commercial buildings. Detecting leaks early can prevent costly repairs and minimize damage to structures, furniture, and electrical systems, significantly reducing insurance claims and maintenance costs before they escalate into major problems.

This smart water leak sensor alerts residents or building operators to any water leaks and can automatically trigger shut-off valves to prevent or reduce further damage. The design features a humidity sensor alongside moisture electrodes for water leak detection and includes a Wi-Fi/Bluetooth^®-enabled MCU to send alerts appropriately. The system can be powered via a solar cell or USB and has a backup Li-ion battery to ensure continuous operation.

System Benefits​:

• Provides Wi-Fi alerts to users or shut-off valves, e.g., via MQTT, for real-time notifications and automated actions.
• Battery backup keeps the sensor operational during power outages, ensuring reliable and uninterrupted operation.
• Solar energy harvesting allows sensor use without mains power, enabling energy independence from the electrical grid and extending deployment options.
• Ultra-low power DC/DC and Wi-Fi enable long operation and standby time.
• Bluetooth Low Energy (LE) 5 simplifies commissioning via smartphone, allowing for easier setup and faster installation.