![]() The polarity of input voltage source determines the direction of rotation of a DC motor. DC Motor Direction ControlĪs you know that in case of DC power supply, there is a concept of polarity such as positive and negative terminals of a battery. Usually, a pulse width modulation technique is used to generate a variable dc voltage from constant dc voltage source. In short, we can control the speed of rotation by giving a variable input voltage to a DC motor. Similarly, if we apply 6 volts, the DC motor will run at its highest rated speed. If we apply 3 volts input, the motor will run at its lowest rated speed. For example, If the operating voltage range of a motor is between 3 – 6 volts. One important point to note here is that if we want to control the speed of a DC motor, we will need to provide a variable voltage to the DC motor. But the voltage should be within the operating voltage range. The higher the input voltage, the higher will be the rotational speed of the motor. Note that comments are held for moderation to prevent spam.The speed of rotation of motors is directly related to the input voltage. If you have any questions suggestions, or if you think that things are missing in this tutorial, please leave a comment below. I would love to know what project you plan on building or have already made with DC motors and the Arduino. If you did, please share it with a friend who also likes electronics and making things! I hope you found this tutorial helpful and informative. – > Check out our guide to the Top 12 Best Arduino Online Courses ConclusionĪfter this tutorial, you can apply the logic used to control the speed and direction of DC Motors to build innovative and creative electronics projects with DC Motors and Arduino Board. ![]() Note that you can run both motors by sending characters as per your requirements.Įxample 2: Run Motor_1 & Motor_2 simultaneously in forward, then backward, and stop both motors. Similarly, you can also control Motor_2 by sending the above characters in the Upper case. Serial.println("Motor_1 and Motor_2 Stop") įirst I have define the variables for Arduino UNO pins as per connections and other variables for storing serial data and speed value. Serial.println("Motor_1 and Motor_2 Backward Direction") Serial.println("Motor_1 and Motor_2 Forward Direction") Serial.println("Minimum Speed Limit Reached for Motor_2: ") Serial.println("Motor_2 reduced Speed value: ") Serial.println("Minimum Speed Limit Reached for Motor_1: ") ![]() Serial.println("Motor_1 reduced Speed value: ") Serial.println("Motor_2 Backward Direction") Serial.println("Motor_1 Backward Direction") Serial.println("Motor_2 Forward Direction") Serial.println("Motor_1 Forward Direction") You can copy the code by clicking on the button in the top right corner of the code field and uploading it to your Arduino UNO board. It can provide a bidirectional drive current up to 1 A at voltages from 4.5 V to 36 V. The L293D is a quadruple high current half-H driver IC suitable for controlling DC motors. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to products on. Supplies Hardware components Arduino Uno Rev3 I have included a wiring diagram and details of Arduino code to control the DC motor by sending characters from Serial Monitor of Arduino IDE with multiple examples. In this tutorial, I will give you all the necessary information about controlling the speed and direction of a DC motor with an L293D motor driver IC using an Arduino UNO board. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |