The experiment is for switching an acoustic sounder as a rain alarm after a predetermine time. It may, however, be tinkered for a number of other applications. Needless to say, this is a simple ...

An Arduino-based smart drying stand that uses a Raindrop sensor to detect rain and a DHT11 sensor to monitor humidity. A servo motor automatically retracts the stand when it rains or humidity is high, ...

The Internet of Things technology and sensor technology can be used to analyze and process the rainy day data, and the raindrop detector based on Arduino is built. Arduino is a convenient, flexible ...