The Arduino can generate PWM signals on its digital output pins, which can be used to control the speed of the motor. The more often the power is switched on, the faster the motor will rotate. It works by rapidly switching the power to the motor on and off, in a specific pattern. Pulse Width Modulation (PWM) is a technique used to control the speed of a DC motor. L293D shield for Arduino UNO PWM – to control speed It is important to note that the L293D requires a power supply with a voltage between 4.5V to 36V and it can drive a DC motor with a maximum current of up to 600mA. By providing a logically high or low signal to the enable pins, the L293D can turn the motor on and off. The L293D also contains two enable pins (EN1, EN2) which enable or disable the output driver. The L293D has four input pins (IN1, IN2, IN3, IN4) and four output pins (OUT1, OUT2, OUT3, OUT4) that are used to control the direction and speed of the motor. The L293D motor IC can be used to control a DC motor by providing a variable amount of current to the motor's terminals and by reversing the direction of current flow through the motor's terminals. In this blog post, we will discuss how to control a DC motor using the L293D Motor Driver IC and an Arduino microcontroller. ![]() ![]() They are simple to control and relatively inexpensive, making them a popular choice for many applications. DC motors are widely used in many applications, from small hobby projects to industrial automation systems.
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