Link to download the software: SPECIFICATIONS JOYSTICK MODULE
MyStepper.L298N is a high voltage, high current dual full-bridge driver designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and stepper motors. Int motorSpeed = map(sensorReading, 0, 1023, 0, 100) You may notice the motor is less responsive to changes in the sensor value at Because setSpeed() sets the delay between steps, The motor will rotate in a clockwise direction. Int stepCount = 0 // number of steps the motor has takenĪ potentiometer is connected to analog input 0. Then plug that number into the oneRevolution Use this also to count the number of steps per revolution of your motor, If wired correctly, all steps should be in the same direction. Test that you've got the four wires of your stepper wired to the correct The motor will step one step at a time, very slowly. Stepper Motor Control - one step at a time step one revolution in the other direction: Stepper myStepper(stepsPerRevolution, 8, 9, 10, 11) initialize the stepper library on pins 8 through 11:
The motor should revolve one revolution in one direction, thenĬonst int stepsPerRevolution = 200 // change this to fit the number of steps per revolution
The motor is attached to digital pins 8 - 11 of the Arduino. This program drives a unipolar or bipolar stepper motor. If you remove the jumper, the onboard voltage regulator is disabled and the +5V pin at #6 is no longer active. You can now use the +5V pin at #6 (and the GND pin at #5) to power your Arduino. Connect to PWM output for DC motor speed control.Ĭonnect the L298N stepper driver board to a 9V…12V power supply using pin #4 (+12V) and #5 (GND). Leave this in place when using a stepper motor. Connect to PWM output for DC motor speed control. 5V output if the 12V jumper at #3 is in place.Connect your motor supply voltage here, maximum of 35V DC.When the jumper is in place, the onboard voltage regulator is active (12V max to 5V). 12V jumper – remove this if using a supply voltage greater than 12V DC.They will not have as much torque as bipolar motors due to thinner wire with a higher electrical resistance used in the coils (bifilar windings). Note: You can also connect 5,6 or 8 wire unipolar motors and connect them as bipolar motors by not connecting the common lead(s).
Flyback diodes are required to prevent voltage spikes when the power to the coil is turned off and the stepper motor acts like a generator briefly (back-emf). Bipolar motors offer increased torque compared to unipolar motors.
Note that the number of poles inside a stepper motor is often greater than just 2 individual physical poles inside the stepper motor are wired in series to create 2 coils / 4 wires you see in schematics.īipolar stepper motors require a dual H-bridge to drive them one H-bridge for each coil.
By driving the current in seperate directions through each of the coils, we can have a total of 4 different states: Bipolar stepper motors always have 2 coils. Bipolar stepper motors always have only 4 wires.