Dc motor is the most used motor in robotics and electronics projects for controlling the speed of dc motor we have various methods but in this project we are controlling dc motor speed using pwm in this project we will be able to control the speed of dc motor with potentiometer and we can adjust the speed by rotating the knob of potentiometer.
Arduino stepper motor speed control potentiometer.
The push button which is connected to arduino pin 4 is used to change the rotation direction of the stepper motor.
A 12 volt dc.
Since a potentiometer can change value even when we are not touching it we are moving the motor only if the potentiometer value has changed 6 or 6 from the previous.
A lot of m m jumper wires.
Commercially stepper motors are used in floppy disk drives flatbed scanners computer printers plotters slot machines image scanners compact disc drives intelligent lighting camera lenses cnc machines and more recently in 3d printers.
We have used the 28byj 48 stepper motor and the uln2003 driver module.
The circuit diagram for the controlling stepper motor using potentiometer and arduino is shown above.
An arduino board arduino uno being a beginner friendly board is recommended.
A stepper motor driver be it l298n af motor shield a4988 or drv8825 the latter two are recommended since the current output of these drivers can be adjusted.
This approach is a bit different.
The 10k ohm potentiometer is used to control the speed of the stepper motor its output pin is connected to arduino analog pin 0.
The pot controls how fast the motor runs and in which direction.
Arduino bipolar stepper motor control code.
Some m f jumper wires.
Here it is possible to run the motor an infinite amount either way.
Circuit diagram for rotating stepper motor using potentiometer.
We will be using the accelstepper library to control the speed and acceleration of the stepper motor we want the motor to move in relation to the rotation of the potentiometer.
A stepper motor a potentiometer and an arduino the hw ingredients for this blog post.