The frequency of this switching will be in the order of few tens of kilo Hertz.

Speed Control of DC Motor using PWM: Using PWM technique, the average value of the voltage that is applied to the DC Motor is controlled by turning the power on and off at a very high rate. The Pulse Width Modulation or PWM signal generated by this technique will allow us to control the average voltage that is being delivered to the DC Motor. If you want to control the speed of rotation of a simple DC Motor, then there is a technique called PWM DC Motor Control. reverse the polarity, the motor will rotate in reverse direction. It is very simple to operate: connect the two leads of the motor to the two terminals of a battery and voila! Your motor starts rotating. Overview: A DC Motor is the simplest of motors that beginners and hobbyists encounter. There are different ways to control a DC Motor but the Arduino DC Motor Control using L298N Motor Driver is becoming quite popular for many reasons. * * Created by * * This example code is in the public domain * * Tutorial page: */ # include # define DEG_PER_STEP 1.Arduino DC Motor Control using L298N Motor Driver In this project, we will see how to control a DC Motor using Arduino and L298N Motor Driver. Therefore, we need a hardware driver in between Arduino and the stepper motor. However, the signals from Arduino do not have enough voltage and/or current that the stepper motor requires. How to control a stepper motor using ArduinoĪrduino can generate signals to control the stepper motor. STEP_PER_REVOLUTION = (360 / DEG_PER_STEP) * nįor example, If the motor's datasheet specifies 1.8 degree/step: Control method STEP_PER_REVOLUTION = (360 / DEG_PER_STEP) * 2

Depending on the method of control, the steps per revolution (let's call STEP_PER_REVOLUTION) is calculated as the following table: Control method The motor's specification specifies the degree per step (let's call DEG_PER_STEP). The above image also shows the specification of two different motors with different wire naming and wire coloring. You need to read the datasheet or manual to see the mapping between wire color and pin name. The order of pins, wire naming, and wire coloring can vary between manufacturers.

Using the l298n motor driver