It isn’t that hard to make an electronic rain gauge if you have a steady source ... [Matthew] had to modify the Arduino libraries to allow the lp_timer objects to make it to an hour.

The “snooper” here is an ordinary passive infrared (PIR) motion detector module ... regulator, and Arduino IDE compatibility. The code is an Arduino project for the Digispark Attiny85 to turn on a ...

For instance, you can adjust the cutting height, add sensors for obstacle detection, or even integrate it with a home automation system. The DIY Arduino ... can also add a rain sensor to ensure ...

This can be particularly useful for applications where light conditions need to be monitored alongside rain detection, such as in smart irrigation systems. By integrating the light sensor data ...

Because of the affordability and seeming ubiquity of the Arduino platform, they have been hard at work this last month trying to get their Geiger counter sensor board for an Arduino out the door.