My country mild climate lets the sun to shine for the greatest part of the year, then tumble driers are not widely used and so we often use to drain clothes in the sun.
What to do when a sudden rainfall comes?
This project has been made for anyone drain clothes in the sun or, simply, needs an alert when it starts to rain.
"Peggy" project is a simple portable rain traker that uses a rain sensor, 433 Mhz transmitter-receiver modules and Arduino.
This prototype basically do this:
When rain sensor detect rain over a predefinied treshold level, transmitter module sends a continue RF signal. A listening receiver module detect this data, when sent, and activate acoustic and visual alarm till you stop it shutting down the system.