PIR Sensor

Hello!

Your PIR module probably doesn’t have the ability to deliver the amount of current a laser needs let alone the voltage.

What you want to do is have the PIR module turn on a transistor or MOSFET, and then have the transistor/MOSFET drive the laser from a suitable power source. Something like the [SparkFun MOSFET Power Control Kit is probably overkill for a small laser, but would be an easy way to make this work.](SparkFun MOSFET Power Control Kit - COM-12959 - SparkFun Electronics)