Controlling servo with pic16f1789 for car backseat table
This post is about use of servo motor in Car backseat tray system. Servo motor : Servo motor is a dc motor with a derive circuit and position sensor for precise movements. position sensor used in servo motor is normally potentiometer attached to gears of motor. Derive circuit typically consists of pulse width modulation to voltage converter feedback from potentiometer supply voltages Feedback from position sensor is compared with converted voltage and resulted output is used to correct position of motor until both signals are equal. Servo motor will maintain its position and resist to any external change as long as modulated pulse is present at control wire of motor. Control signal : control signal is most complex signal out of three signal required to operate DC Servo motor . Other two signals are 0 v and 5 volts out of battery. To generate control signal we are using Pic 16f1789 micro-controller