The diagram down below indicates the behavior of the servo motor’s shaft due to the change of the PWM pulse width. Which in turn changes the reference voltage and the control circuitry steers the motor in the right direction until it reaches the exact required angle position and it keeps holding it while the PWM signal is not changing. The reference voltage can be controlled by sending a 50Hz PWM (pulse-width-modulated) signal to the servo motor. The way servo motors are working is simply by comparing a reference voltage to the actual angular shaft position using a potentiometer attached to the gearbox. *Affiliate Links Disclosure: links will make me a small commission at no additional cost to you* Component Name Buy On 1 PIC18F2550 Add 1 BreadBoard Add 1 Micro Servo Motor (Metal Gear) Add 1 LED Add Add 1 Resistors Kit Add Add 1 Capacitors Kit Add Add 1 Jumper Wires Pack Add Add 1 LM7805 Voltage Regulator (5v) Add 1 Crystal Oscillator Add 1 PICkit2 or 3 Programmer Add 2 9v Battery or DC Power Supply Add Add Add 4.2 How To Generate Servo Motor Control Signal?.4 Servo Motor Control With High-Resolution PWM.3.1 What Are Some Design Techniques & Solutions To Control Servo Motors?.3 Servo Motor Control With PIC Microcontrollers.1 Required Components For This Tutorial.
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