![]() ![]() First we know that it is a 5V Stepper motor since we energize the Red wire with 5V. That is a head full of information, but we need to look at few important ones to know what type of stepper we are using so that we can program it efficiently. ![]() Let us look at some of the important technical data obtained from the datasheet of this motor in the picture below. There is no technical reason for this motor for being named so maybe we should dive much deeper into it. So now, why is this motor called the 28-BYJ48? Seriously!!! I don’t know. We use a microcontroller like Arduino energize these coils in a particular sequence and make the motor perform the required number of steps. The Red wires will be supplied with +5V and the remaining four wires will be pulled to ground for triggering the respective coil. There are four coils which have to be energized in a particular sequence. Let us take a look at the coils present inside the motor to know exactly know from where these wires come from.Īs you can see the motor has Unipolar 5-lead coil arrangement. When each coil is being energized the motor takes a step and a sequence of energization will make the motor take continuous steps, thus making it to rotate. These motors have a sequence of coils present in them and these coils have to be energized in a particular fashion to make the motor rotate. Meaning, they will move only one step at a time. First of all steppers motors do not rotate, they step and so they also known as step motors. Okay, so unlike a normal DC motor this one has five wires of all fancy colors coming out of it and why is it so? To understand this we should first know how a stepper works and what its specialty is. Let us take a look at this 28-BYJ48 Stepper motor. A Stepper Motor is a brushless, synchronous motor which completes a full rotation into a number of steps. In this Arduino stepper motor tutorial we will learn about the most commonly available stepper motor 28-BYJ48 and how to interface it with Arduino using ULN2003 stepper motor module. Starting from a normal Surveillance camera to a complicated CNC machines/Robot these stepper motors are used everywhere as actuators since they provide accurate controlling. Stepper motors are increasingly taking its position in the world of the electronics.
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