Take a look at the final project I made using Arduino, Raspberry Pi & a couple of sensors for a digital studio class. I have also written some in-process articles about this project in the past.
Second part from my three part series about Arduinos and sensors. Learn about how to connect temperature and photo sensors with Arduino and extract useful data from them.
First part from my three part series about Arduinos and sensors. Learn about how to connect the Yl-69 soil sensor with Arduino and get useful data from it.