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Documentation Index

Fetch the complete documentation index at: https://mintlify.com/wokwi/wokwi-docs/llms.txt

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A bipolar stepper motor.

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Pins

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A-
signal
Coil A negative signal
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A+
signal
Coil A positive signal
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B+
signal
Coil B positive signal
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B-
signal
Coil B negative signal

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Attributes

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arrow
string
default:""
Displays an arrow to indicate the position of the stepper. Set to the color of the arrow, e.g. “orange”
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display
string
default:"steps"
What number to display on the stepper? Valid values “steps”, “angle” (in degrees), “none”
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gearRatio
string
default:"1:1"
The gear ratio of the motor. set to “1:1” for 200 steps/revolution, “2:1” for 400 steps/revolution, etc.
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size
string
default:"23"
The NEMA standard size of the motor. Valid values: “8”, “11”, “14”, “17”, “23”, “34”

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Examples

ResultAttrs
NEMA 17 size{ "size": "17" }
Display steps{ "display": "steps" }
Display angle{ "display": "angle" }
Display none{ "display": "none" }
Orange arrow{ "arrow": "orange" }

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Using the stepper motor

When using a stepper motor you need a driver chip that can supply large amounts of current to the motor’s coils. Wokwi supports the common A4988 driver board. You can also wire the stepper motor directly to your microcontroller. Wokwi uses a digital simulation engine, so the coil current is not taken into account. You can use a variety of Arduino libraries to control the stepper motor: Stepper, AccelStepper, etc.

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Simulation Behavior

The stepper motor moves 1.8 degrees per step (200 steps per revolution). The motor also supports half-stepping (0.9 degrees per step / 400 steps per revolution). You can even use smaller microsteps (e.g. 1/4 or 1/8 step), but the simulated motor only displays the angle in half-step resolution. For more information, check out the A4988 microstepping configuration table.

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Simulator examples

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