Concept Design: Rain Sensors

• A rain sensor is a device which is actuated by rainfall. For the purpose of our project we considered the use of the capacitive sensors.
• Capacitive sensors are preferred over resistive sensors as they are less prone to false detection of rainfall.
• E.g.: if the resistive sensor gets contaminated by a carbon containing particle, the resistance changes and the system is triggered, whereas this is not the case with the capacitive sensors.