Like to keep track of when it has last rained? With this tutorial from theorycircuit you can learn how to interface between an Arduino and a rain sensor.
Once you have done this the possibilities are endless. You could record data about how often and at what times you get rain, or even use the rain sensor as an input to your home automation system. For example you could automatically fire up your heater or close your windows when rain is detected! To get started learning about detecting rain with Arduino check out the following link.
If you are looking for a very straight forward way to get started with Arduino our Thinker Shield is a great option. The shield is ideal for beginners and includes a number of buttons, a buzzer, LEDs and more so that you can get started making all sorts of cool projects! Not only this, but you can find a fantastic project guide on our website! Checkout the product page to find out more. Our Thinker Shield would make a great Christmas present!Inspired by this project? Working on a cool project of your own? Let us know in the comments section below or on Facebook and Twitter.