Stepper motor basics in Arduino - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a stepper motor?

A stepper motor is a type of motor that moves in small, fixed steps instead of spinning continuously. It allows precise control of position and speed.

beginner

How does a stepper motor move?

It moves by energizing coils in a sequence, causing the motor shaft to rotate in small steps, like climbing stairs one step at a time.

beginner

What is the purpose of a driver in a stepper motor setup?

The driver controls the power to the motor coils, switching them on and off in the right order to make the motor step.

beginner

What does 'steps per revolution' mean in a stepper motor?

It means how many small steps the motor takes to complete one full turn (360 degrees). For example, 200 steps per revolution means each step is 1.8 degrees.

beginner

Why is controlling a stepper motor useful in projects?

Because it lets you move things very precisely, like turning a knob exactly 10 degrees or moving a robot arm to a specific position.

What type of movement does a stepper motor produce?

A Small fixed steps

B Continuous smooth rotation

C Random spinning

D Back and forth swinging

Stepper motors move in small fixed steps, not continuous rotation.

What component controls the power to a stepper motor's coils?

A Switch

B Battery

C Sensor

D Driver

The driver switches power to the coils in the correct order to make the motor step.

If a stepper motor has 200 steps per revolution, how many degrees does one step move?

A 2 degrees

B 0.5 degrees

C 1.8 degrees

D 5 degrees

360 degrees divided by 200 steps equals 1.8 degrees per step.

Why might you choose a stepper motor over a regular motor?

A For quieter operation

B For precise position control

C For less power use

D For faster spinning

Stepper motors are chosen when you need precise control of position.

What happens if you energize the coils of a stepper motor in the wrong order?

A The motor may not move correctly

B The motor spins faster

C The motor reverses direction automatically

D The motor gets damaged immediately

Wrong coil sequence causes incorrect or no movement.

Explain how a stepper motor moves and why it is useful for precise control.

Think about how the motor moves like climbing stairs and why that helps in projects.

Describe the role of a driver in a stepper motor system.

The driver is like the motor's controller or conductor.