This is not necessary here because the tilt sensor module have a built-in (1ms) “hardware debounce” arrangement using a simple RC network (R-10K & C-100n). Sketch: Analog. This example code lights up ...

This project uses a Raspberry Pi 2 or 3, an Arduino Uno, some servos, and a USB webcam. The end result is a camera mounted to the servo that’s controlled by the Arduino.