Smart Home & Building Mechatronics · Intermediate

Smart Water Leak Sentinel

Distributed leak sensors with local alarm and battery-conscious wireless reporting. Distributed leak sensors with local alarm and battery-conscious wireless reporting.

Components

  • Low-power MCU
  • leak probes
  • radio
  • buzzer

Build steps

  1. Inventory the board, actuators, sensors, and power rails listed for S04.
  2. Build and inspect the low-voltage wiring against the supplied connection diagram before connecting actuators.
  3. Flash the firmware, run the startup self-check, and record the printed board and firmware version.
  4. Calibrate the sensors and limits, then run the acceptance tests at the lowest safe energy level.

Test and expected result

Wet/dry threshold, alarm latency, battery estimate, and network outage behavior.

Safety and limits

Keep water away from mains and use low-voltage isolation.

Download Arduino source code

Download connection diagram SVG

Smart Water Leak Sentinel project illustration