Stepper Motors
A stepper motor moves in small fixed steps. By energizing coils in sequence, the controller can position the shaft accurately without a feedback sensor for simple tasks.
Working Principle
A stepper motor moves in small fixed steps. By energizing coils in sequence, the controller can position the shaft accurately without a feedback sensor for simple tasks.
Step by Step
- Driver energizes coil A.
- Rotor aligns to the magnetic field.
- Driver energizes the next coil.
- Repeating the sequence creates precise rotation.
Working Simulation
Verified Learning Notes
A stepper motor moves in discrete steps by energizing coils in sequence. It needs a stepper driver, not direct Arduino pins.
Steppers are useful for precise position control, not usually for simple BO-motor rover wheels.
Set driver current limit and use a suitable motor power supply.
Command 200 steps and observe whether the shaft returns to the expected angle.
Simulation Challenge
Use the working simulation above before touching wires. Change one value or command at a time, predict the result, then compare it with the diagram and the real module.
- Say what input changed.
- Predict the output.
- Run the simulator.
- Explain why the result is correct for Stepper Motors.
Authenticity Checklist
- Does the diagram match Arduino Nano pin names?
- Does every signal have a common ground reference?
- Is the module powered at its correct voltage?
- Does the explanation separate signal, data, power, and mechanical motion?