L293d 2 dc motors arduino how to#
L293d 2 dc motors arduino driver#

L298N is a dual-channel H-Bridge motor driver capable of driving 2x DC motors.L239D is a 16 pin IC having two enabled pins, As i mentioned earlier L293D is a dual H-bridge motor driver, in which enables pin should always be remain high to enable both the H-bridges. Refer to the datasheet for More details about L239D This module can drive voltages between 5v to 35 volts with a peak current of up to 2A. L239D is an Integrated chip that comes with combined functions to control the Speed and Direction of the DC motor. By activating two particulars switched we can change the direction of current flow, thus change the direction of the DC Motor. H- Bridge is a circuit that contains four switching elements with a motor at the center. This can be achieved by a common method called H-bridge. The average value of voltage depends on the duty cycle ( amount of times the signal is on versus the amount of time the signal is off )įor controlling the Direction of the motor we need to reverse the direction of current flow through the DC motor. PWM or Pulse with modulation is a technique that a user to adjust the average value of the voltage that goes to the electronic device by turning on and off the power at a fast rate.

L293d 2 dc motors arduino how to#

DC motor and How to control that Using Arduino Nanoįor controlling the speed of a Dc motor by simply controlling the input voltage to the motor, the most common way we are doing that is by using the Arduino PWM signal: Check this to know more about PWM In this tutorial, we are dealing with Arduino and L239D based DC motor drivers. The motor driver connects with the Microcontroller to receive commands and run the motor with a high current. To solve this problem we are going to use a motor driver L239D along with Arduino to control the DC motor. These can be achieved through a microcontroller but there is a problem, microcontrollers cannot provide enough current to run the motors, If the motor is connected directly to the microcontroller, it may get damaged.įor Example: In this tutorial, we are going to use Arduino and L239D, the pins of Arduino nano are limited to 40mA, but a motor required 100-200mA current. Why DC motors need a Motor driver to connect with Arduino?ĭriving the electric DC motor needs a high current, along with that we need to control the spinning Direction and speed of the motor. Schematic Diagram to Connect Arduino nano and L239D.DC motor and How to control that Using Arduino Nano.Why DC motors need a Motor driver to connect with Arduino?.