![]() when the the signal is present is known as pulse width. PWM waves for the different duty cycles are shown in the figure below.ĭuty cycle is basically the proportion of the time during which a system is operated. This pattern can vary voltages between full on i.e. Digital control is used to create square wave. In this technique we can get analog results with the digital means. PWM technique is an excellent technique to control the analog circuits with microcontroller's digital PWM output. ![]() It basically describes the type of the digital signal. Moreover, you can download the complete Arduino code for DC Motor Speed Control using Arduino by clicking the below button:ĭownload Arduino Source Code Pulse Width Modulation (PWM) Before going into the further details I would like to tell you about the concept of PWM for controlling DC motor. PWM pulse can be generated using Arduino and L298 Enable Pin is used to get that PWM pulse and then it controls the motor speed accordingly. Speed control of any motor is always done y Pulse Width Modulation, abbreviated as PWM. In this tutorial we will learn that how to make an algorithm for DC Motor Speed Control using Arduino UNO. So, let's get started with DC Motor Speed Control using Arduino UNO: It will be helpful to vary the speed of the DC motor in either clockwise or in anti clockwise direction. In this tutorial, I have controlled its speed as well by providing different voltage levels at the enable pin of the DC motor control driver L298. In my previous tutorial, we have seen that input pins In1 & In2 of motor control driver L298 (H-Bridge) are useful to control the direction of rotation of the DC motor. But in this tutorial I will rotate the same DC motor at variable speed in both clockwise and anti clockwise directions. I have also performed the DC Motor Direction Control in Matlab by sending different commands through serial port from Matlab and LabVIEW to the Arduino and then controlled the direction of rotation of DC motor. Today, I am going to share my knowledge about how can you make a simple program for DC Motor Speed Control using Arduino UNO. In my previous tutorial, DC Motor Direction Control using Arduino, I have just controlled the DC motor in both directions at constant speed using Arduino. Hello friends! I hope you all will be absolutely fine and having fun.
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