Loving this fun water squirting alarm that automatically loads a pic of the newly wet trespasser to Twitter. via instructables
In this project, we will build a water spraying intruder alarm using a Lightblue Bean (a BLE enabled Arduino micro controller). After spraying the intruder, the Lightblue Bean will trigger a nearby computer to take a picture, and upload it to Twitter! We will also be able to remotely arm or disarm the motion detector by sending a message to the Bean through Twitter.
Step 1: Parts and tools
You will need:
Super Soaker Thunderstorm motorized water gun
10K Ohm resistors x 2
4xAA battery holder
An empty toilet paper roll