Controls the Parallax 360 Feedback Servo using a P-controller by reading pulses from the feedback wire.
- Based on datasheet for Parallax 360 Servo Motor: https://www.parallax.com/sites/default/files/downloads/900-00360-Feedback-360-HS-Servo-v1.2.pdf
- Servo can be purchased from Adafruit: https://www.adafruit.com/product/3614