: With the increasing demand for smart devices and interconnected systems, a component like Hw-133-v1.0 could play a crucial role in enabling communication and data processing in IoT applications.
The is a versatile, affordable water detection module that outperforms many bare sensors because of its onboard comparator and adjustable sensitivity. While the "v1.0" silkscreen can be ambiguous (rain sensor or ultrasonic), this datasheet confirms that the rain sensor variant is by far the most common. By following the pinout, wiring diagrams, and Arduino code above, you can integrate the Hw-133-v1.0 into any moisture-sensing project within minutes. Hw-133-v1.0 Datasheet