choosing the right sensor

Other Hardware General Electronics
1

I need a sensor that detects if the user is moving or not ?
help?

2

Do you mean a motion sensor?

3

You could just use a PIR motion sensor, which is commonly used for Arduino projects. Do you have something specific in mind?

4

to clear things up
I want to attach sensor on human body ,if he moves a code will happen

5

Tilt switch ?

Who is the lucky victim ?

6

An IMU like the MPU6050?