#High speed servo motor arduino series

One servo motor, the SG90, was used to demonstrate the inner components of a servo motor. In this tutorial, two servo motors were explored. Servos can be found in aircraft, robotic arms, CNC machines, printers, cameras, and a multitude of other mechanically-functioning areas that require speed, precision, and effectiveness in control. Servo motors are necessary for engineering applications both in the consumer market and industrial market. #include #include Servo servo_1 // servo controller (multiple can exist) int servo_pin = 3 // PWM pin for servo control int joy_pin_x = A0 // pin for x-dir joystick int joy_pin_y = A1 // pin for y-dir joystick int offset_x = 0 // subtracting the initial joystick x-location int offset_y = 0 // subtracting the initial joystick y-location int pos = 90 // servo starting position aligned with joystick int prev_deg = 0 // bound for reducing jitter int x_prev = 0 // bound for reducing jitter int y_prev = 0 // reducing jitter void setup () Fortunately, the Arduino uses a 20ms PWM pulse in its servo library, which happens to be the period of the PWM pulse on both servos, so the programming needed to get the servos functioning is minimal. The MG90S technically has a working voltage input range of 4.8V - 6.0V, so any 5.0V Arduino should work, assuming it has pulse-width modulation (PWM) capabilities. First, the servo needs to be wired to an Arduino board. The Arduino library is a great place to start, as it really only requires a few lines of code. Right out of the box, MG90S servos work with the prescribed Arduino вЂServoвЂ™ code, which rotates the servo back and forth based on its built-in servo library. Both the MG90S and the SG90 are wired the same and use similar code. The MG90S is also slightly faster than the SG90, which is a further justification for why it is used here. The MG90S is another small servo motor that is similar to the SG90, but weighs slightly more (14g) and has metal gears instead of plastic. The goal of this project is to introduce users into the workings of a servo motor, how PWM (pulse-width modulation) controls a servo motor, and how Arduino can interface with servo motors to produce desired movements to great precision.

The basics and composition of an SG90 will be explored, and the application of several servo codes and applications will be given for another type of servo motor, the MG90S.

In this tutorial, an Arduino board will be used to power and control a small servo motor. Lastly, servo motors use a circuit to control and send feedback information to a given controller, which in our case is an Arduino board (read more about servo motors here).

#High speed servo motor arduino series

Often, servo motors contain a series of gears that either speed up or slow down and smooth the movement of the DC motor. The low-cost servos that are found in maker projects use potentiometers to register voltages as positions on the rotating plane of the servo. Servo motors are often comprised of DC motors that use feedback mechanisms to move with great precision from one position to another. Servo motors can be found in robotic arms, cameras, lathes, CNC machines, printing presses, and other engineering applications where precision and repeated movement are required.