![]() ![]() That means it can individually drive up to two motors making it ideal for building two-wheel robot platforms. ![]() The L298N is a dual-channel H-Bridge motor driver capable of driving a pair of DC motors. L298N Motor Driver IC: At the heart of the module is the big, black chip with a chunky heat sink is an L298N. This causes a change in the spinning direction of the motor. An H-Bridge circuit contains four switches with the motor at the center forming an H-like arrangement.Ĭlosing two particular switches at the same time reverse the polarity of the voltage applied to the motor. A common technique for doing this is to use an H-Bridge. The DC motor’s spinning direction can be controlled by changing the polarity of its input voltage. H-Bridge – For controlling rotation direction: 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). The average voltage is proportional to the width of the pulses known as the Duty Cycle. PWM is a technique where the 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). PWM – For controlling speed: 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 complete control over the DC motor, we have to control its speed and rotation direction. The PWM Pins are unnecessary if you do not want to control PWM features.Make sure you have all of your grounds tied together Arduino, Power source, and the Motor Controller.H-bridges are typically used in controlling the motor’s speed and direction but can be used for other projects such as driving the brightness of certain lighting projects such as high-powered LED arrays. EnA: Enables PWM signal for Motor A (Please see the “Arduino Sketch Considerations” section).5v: 5v input (unnecessary if your power source is 7v-35v, if the power source is 7v-35v then it can act as a 5v out). ![]()
0 Comments
Leave a Reply. |