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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