Arduino and Programming Tutorial 28 – Motors
So sensors are useful for the sake of sensing, the information, but to sense the information we need the microcontroller board. So so they are connected to this, and from this will be giving some sort of code to enhance the output based on the sensing. The output will be shown with the help of the motors connected, so there are different kinds of motor, and today, in this lecture well be discussing about fuel, motor and the types and about the working. Let us move into the lecture. So here is the description of the motor. The first one is the side shaft motor, so the side shaft motor has operating voltage of 12 volts to 24. Volt generally well be using 12 volts, and if the motor has to be very strong, it has to be operated with 24 volts and it has very high torque. So with the high torque, this motor can be used in any lens. That means based on any sort of land. Even it is slippery or height. It can work easily. So based on our requirement, we can choose this motor, so this is the image of this motor till here. The part the motor is same, but here it will be having the gearbox, where it provides a greater torque to this motor and here well be having the positive and negative terminals to connect this motor to the battery. And here is the center shaft motor. The description of this motor is that it has a operating voltage of 12 volts to 24 volts and it has low torque and high speed.
So actually the torque is inversely proportional to speed. So if speed is high, then torque will be low, so this center shaft motor will be having low torque and it will be having high speed so for the sp sake of high speed application with low torque, this motor can be chosen per requirement. So this is a look of the center shaft motor. This is the entire part of the motor, and here we are having the positive and negative terminals connected, so the next motor is the servo motor. So the description of this motor is that servo motor is a type of a motor that can rotate with greater precision. Normally, this motor is type of the motor consists of the control unit that provides a feedback on the current position of the motor shaft, and this feedback allows the servo motor to rotate with greater precision. That means the servo motor ensures it will be having the control circuit and it will be providing the feedback to enhance the current position. So it can identify the current position of the motor shaft, and this feedback allows the servo motors to rotate with a greater precision. And if you want to rotate an object at some specific angles or distance, then you can use the servo motor. For example, a motor will be having inside control circuit to find the location of the shaft of this motor. So if at all, you want to rotate the motor to particular angle, so you can use this servo motor for some applications.
Where you need to turn the uh motor shaft to some angle, then you can go with the servo motor. So this is the image of the servo motor here inside this will be having the control circuit and feedback and the motor everything and outside will be getting three terminals. One will be ground here. It is wrong, so actually it will be ground, vcc and control signal. So the ground is the negative, and this is the positive and control signal must be connected to the pwm pin. So actually, this servo motor works on the analog output so, for the sake of analog output on our arduino uno, microcontroller board well be using the uh pwm pins. So, to give the analog output, we use a pwm pin, so that will be given as input to this motor and it rotates here. This is the internal structure of servo motor. They will be having one gear dc motor with high sorry uh, with a high speed and load torque, so here well be having some ic. That is known as control circuit, and it is nothing but integrated. Hatchbit circuit here will be having the potentiometer, which should have the variable voltage and it rotates. Let you to that angle, and there will be some gear box present here. It will be having 60 rpm and high torque. So this motor uh enhance the rotation of the shaft by using this gear structure and the feedback of this potentiometer with the help of this control.
Struct control circuit so uh on the whole, this motor and choose to rotate with a greater precision. So this is about the servo motor. The next one is the stepper motor. The description of the stepper motor is that it work with the principle of electromagnetism. It includes a rotor uh, which is made with the permanent magnet, whereas a statter is electromagnets. One supply is provided to the winding of the starter, to the magnetic field will be developed within the stator and it and our magnetic field will be developed now. The rotor in the motor will start to move with the rotating magnetic field of the stator. So this is completely the fundamental working principle of this motor. We shall look of this explanation in the further slide, so this is the look of the servo motor will be having four wires wire, one two three and four so here internally, the connection will be like this here will be motor and here well be having the Winding for the sake of electromagnetism and four wires – and we will be writing the board to remove perform the rotation of this stepper motor. So here this is the look of the stepper motor, so here well be having the magnets uh. So, whenever uh, the uh outer magnets are given with the electricity, so they will that then they have the property of electromagnetism. So, with this proper property of electromagnetism, the internal rotor will be rotating, and in this way this motor will be rotating on the steps.
So hence it is known as stepper motor so based on the uh electromagnetism of each winding. This uh motor will be rotating by each step. That means it will be rotating by each step, which means some angle. So this angle is known as one step, so they will be rotating on the steps, so hence it has the name of stepper motor. So this is a kind of motor which can solve where you have the use case of rotation of steps. So this is about the stepper motor. So in this lecture we have completely discussed about different motors and based on the requirement for your application, you can go ahead usage of these motors, so this is the end of this lecture.