L298n motor driver arduino code
L298N MOTOR DRIVER ARDUINO CODE DRIVER
And to supply the voltage/current required to operate the motor, an external supply is connected to the motor driver module. We bridge the gap between the Arduino and motor by introducing a motor driver between them. To solve this problem the use of a motor driver is essential. Hence the output of Arduino is not enough to power up the motors. Also, the output current limit of Arduino is relatively very low. But a decent DC motor needs at least 5V or 12V. For instance, the Arduino or PIC microcontroller can output a maximum voltage of 5V or 3.3V. Why do we need a motor driver module?Īll microcontrollers operate on low-level voltage/current signals, unlike motors. The IC alone can control the DC motor but using the module makes the interfacing with Arduino easy. The motor driver module consists of a motor driver IC, which is the heart of the module. To put it in simple words, you can control the direction of DC motors by giving appropriate logic to the motor driver module. This input logic controls the direction of DC motors connected to the driver. A motor driver module takes the low voltage input from a controller like Arduino. It is commonly used in autonomous robots and RC cars. The higher the duty cycle, the greater the average voltage being applied to the dc motor(High Speed) and the lower the duty cycle, the less the average voltage being applied to the dc motor(Low Speed)Ī motor driver module is a simple circuit used for controlling a DC motor. The average voltage is proportional to the width of the pulses known as Duty Cycle. PWM is a technique where average value of the input voltage is adjusted by sending a series of ON-OFF pulses.
A common technique for doing this is to use PWM (Pulse Width Modulation).
The speed of a DC motor can be controlled by varying its input voltage. H-Bridge – For controlling rotation direction.This can be achieved by combining these two techniques. In order to have a complete control over DC motor, we have to control its speed and rotation direction.
L298N MOTOR DRIVER ARDUINO CODE HOW TO
We well take a look at basic techniques for controlling DC motors and we will learn how to control DC motors using the L298N driver and the Arduino board. In this Arduino Tutorial we will learn how to control DC motors using Arduino.