Download Program/Code. This paper presents a way to measure the speed of DC Motor using Arduino UNO. " Arduino Speed/Direction control with 4 DC Motors and 2 Pots, need help "Hi everyone, I need some knowledge of yours. Moreover, I have also used LCD which will give us the status of our DC Motor i.e. In this tutorial, you will use the l293 H-Bridge chip. In the beginning of the code two integers are declared by name “out1” and “val”, where out1 is equal to 9 which shown that pin D9 of Arduino is used as output pin (or PWM pin). 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. In my later tutorial I will control the same DC motor using NI LabVIEW 2015 and MATLAB. In this article, we are going to control two motors by using the GY-521 accelerometer module.The speed of the motor will increase or decrease upon moving the GY-521 module up or down. The purpose of the two microswitches is to switch the direction of the motor. 3/2018 Brown County Library Project 03 continued: Note: No code is needed for this project – you will manually move jumper wires to make the DC motor start, stop and move in the direction that you want. In this tutorial we will be using an Arduino to control the speed and direction of a DC Motor. Arduino Control DC Motor Speed and Direction Using a Potentiometer: In this tutorial we will learn how to use a L298N DC MOTOR CONTROL driver and a potentiometer to control a DC motor speed and direction.Watch a demonstration video. For this tutorial we will be using our basic DC Hobby Motor but this tutorial can be applied to just about any DC Motor out there that falls within the peak voltage and current specifications of the H-Bridge we are using. I am trying to control a 12V DC motor with two microswitches. DC Motor Speed Control – Download Program. Arduino PWM Motor Control – Video Arduino DC Motor Control. To control the direction of the spin of DC motor, without interchanging the leads, you can use a circuit called an H-Bridge.An H-bridge is an electronic circuit that can drive the motor in both directions. The output voltage of a proximity sensor is taken as analog input by the Arduino. The L293D quadruple half-H drivers chip allows us to drive 2 motors in both directions, with two PWM outputs from the Arduino we can easily control the speed as well as the direction of rotation of one DC motor. With the Arduino Uno Board you will be able to control the H-Bridge quite easily. In this tutorial, I will do the DC Motor Direction Control using Arduino and L298 motor controller. Problem: Once I connect the two micro switches (ONLY ONE microswitch works at all times), it gives a random output. The motor is controlled using a h-bridge. I hope that some of you might answer my questions below, thanks. I am newbie and I have encountered with some problems. 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