Rain Drop Sensor

A rain sensor module is an easy tool for rain detection. It can be used as a switch when a raindrop falls through the raining board or for measuring rainfall intensity. The module features, a rain board and a control board that is separate for more convenience, power indicator LED and an adjustable sensitivity through a potentiometer. The analog output is used in the detection of drops in the amount of rainfall. Connected to a 5V power supply, the LED will turn on when induction board has no raindrop, and DO output is high. When dropping a little amount water, DO output is low, the switch indicator will turn on. Brush off the water droplets, and when restored to the initial state, outputs high level.

Features

• Adopts high quality of the RF-04 double-sided material.
• Area: 5cm x 4cm nickel plate on side.
• Anti-oxidation, anti-conductivity, with long use time.
• Comparator output signal clean waveform is good, driving ability, over 15mA
• Potentiometer adjust the sensitivity
• Working voltage 5V
• Output format: Digital switching output (0 and 1) and analog voltage output AO
• With bolt holes for easy installation
• Small board PCB size: 3.2cm x 1.4cm
• Uses a wide voltage LM393 comparator

Applications of Rain Drop Sensors

• Rain sensors can provide critical data to emergency responders during natural disasters like hurricanes or heavy storms
• On windscreen of car to automatically start the wipers.
• On roof of houses and offices to take necessary action against rain
• Rain sensors are used in weather stations and meteorological networks to collect data on precipitation levels. This data helps with weather forecasting and climate research.
• Rain sensors can be integrated into home automation systems to automate tasks like closing windows, retracting awnings, and activating sprinkler systems.
• Rain sensors can monitor rainfall in real-time to predict potential flooding events. This data can trigger flood alerts and help authorities take preventive measures.
• Rain sensors can be installed on road surfaces to detect rainfall intensity and trigger automated responses like adjusting speed limits and activating warning signs.