This is one of the methods to start the vibrator when something moves. For example:

• if you move any part of your body (while bound)
• if your house pet moves
• if something on the street moves

You need the following:

• PIR sensor
• vibrator
• power supply
• electrical tape

1. replace the vibrator battery unit with a power supply
2. connect the power supply to the PIR sensor
3. install the PIR sensor so it will be able to register movements of a warm object
4. attach/insert the vibrator