pir motion

first what youll notice my grammer isnt the best 🙂 ok what youll need: 1 transister/mosfet that can handle the current for the water gun motor, this is the one i used – http://www.sparkfun.com/products/10213   –   then a diode, i used this one  –  http://www.sparkfun.com/products/8589   – then a 10k ohm resistor, then a PIR, i didnt use this one but it should