The video shows me using a potentiometer to control the pan motor, which is a stepper motor. I chose a stepper motor for this role because the micro servo was too small and lacked durability. However, when mapping PWM values from the potentiometer to the stepper motor steps, I couldn't find a precise formula that ensured perfect accuracy. As a result, there are slight delays between adjusting the potentiometer and the stepper motor's movement.