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Rain Sensors Principle

The Rainfall Sensor Module with Tipping Bucket is designed for measuring rainfall. It operates at a working voltage of 3.3 to 5.5V DC with a working current of less than 3mA. The module provides an output signal in either I2C or UART format. It has a resolution of 0.28mm, allowing for precise rainfall measurement. The sensor can operate in a wide temperature range from -40 to 85 C. The PCB size is 32mm x 37mm (1.26 x 1.46 inches), and the tipping bucket size is 118mm x 59mm x 80mm (4.65×2.32×3.15 inches). The mounting hole size is 3.1mm. The tipping bucket weighs 119g, while the PCB weighs 5.3g.
Wiring Diagram of Gravity: Tipping Bucket Rainfall Sensor and Arduino Uno

Key Features

Measures rainfall in millimeters and system operating time
No electronic components inside
Hollow bottom design for automatic drainage
Supports I2C and UART data outputs
Compatible with micro: bit, Arduino, ESP32, Raspberry Pi
Integrated with the Gravity interface
Ready-to-go libraries for easy setup of a rain monitoring system

Applications

Weather monitoring
Environmental monitoring
Smart farming
Research and education

Package Contents

Gravity: Tipping Bucket rainfall Sensor x1
Signal Adapter x1
Gravity-4P I2C/UART Sensor Connector x1

FAQs:
Q: What is the resolution of this rainfall sensor module?
A: The resolution of this rainfall sensor module is 0.28mm per tip of the bucket.
Q: What communication interfaces does this module support?
A: This module supports both I2C and UART communication interfaces.
Q: What is the operating voltage range for this module?
A: The operating voltage range for this module is 3.3V to 5.5V DC.
Q: What is the operating temperature range for this module?
A: The operating temperature range for this module is -40C to 85C.
Q: What are the dimensions of the tipping bucket and the PCB?

Tipping bucket size: 118mm x 59mm x 80mm (4.65 x 2.32 x 3.15 inches)
PCB size: 32mm x 37mm (1.26 x 1.46 inches)