During rain, the sensor plate elements are bridged by the rain water and hence this analog output gradually changes from 5V to 0V, based on the moisture level between the sensor pads. By this way, the ...

Hardware: Arduino uno board, connecting pins, 220Ω resistor, BMP180 Barometric Pressure Sensor, 16x2 LCD, bread board. Software: Arduino nightly . Circuit Diagram & Working Explanation. After calling ...

A novel low-cost rain sensor based on a Surface Plasmonic Resonance (SPR) platform has been designed, realized, and tested. The SPR platform has been used to detect the presence of rain by using a ...