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.
Arduino stepper motor speed control potentiometer.
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.
And the target position target pos and use this to control the motor.
The circuit diagram for the controlling stepper motor using potentiometer and arduino is shown above.
Circuit diagram for rotating stepper motor using potentiometer.
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.
To energise the four coils of the stepper motor we are using the digital pins 8 9 10 and 11.
The pot controls how fast the motor runs and in which direction.
The push button which is connected to arduino pin 4 is used to change the rotation direction of the stepper motor.
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.
Some m f jumper wires.
A stepper motor a potentiometer and an arduino the hw ingredients for this blog post.
Arduino bipolar stepper motor control code.
An arduino board arduino uno being a beginner friendly board is recommended.
A lot of m m jumper wires.
This approach is a bit different.
Here it is possible to run the motor an infinite amount either way.
The 10k ohm potentiometer is used to control the speed of the stepper motor its output pin is connected to arduino analog pin 0.
We have used the 28byj 48 stepper motor and the uln2003 driver module.