https://howtomechatronics.com/how-it-works/how-servo-motors-work-how-to-control-servos-using-arduino/
https://www.instructables.com/Mastering-Servo-Control-With-PCA9685-and-Arduino/
https://forum.arduino.cc/t/which-capacitor-s-can-i-use-for-2-servo-s-and-where-do-i-place-them/1226228/8
https://www.instructables.com/Interfacing-Servo-Motor-With-NodeMCU/
https://www.instructables.com/Mastering-Servo-Control-With-PCA9685-and-Arduino/
https://electropeak.com/learn/interfacing-pca9685-16-channel-12-bit-pwm-servo-driver-with-arduino/
https://learn.adafruit.com/16-channel-pwm-servo-driver?view=all