> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/wokwi/wokwi-docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Biaxial Stepper Motor

> Concentric biaxial stepper motor containing two stepper motors in a single enclosure

A concentric biaxial stepper motor, containing two stepper motors packaged in a single enclosure.

## Pins

<ParamField path="A1-" type="signal">
  Outer shaft motor's coil A negative signal
</ParamField>

<ParamField path="A1+" type="signal">
  Outer shaft motor's coil A positive signal
</ParamField>

<ParamField path="B1+" type="signal">
  Outer shaft motor's coil B positive signal
</ParamField>

<ParamField path="B1-" type="signal">
  Outer shaft motor's coil B negative signal
</ParamField>

<ParamField path="A2-" type="signal">
  Inner shaft motor's coil A negative signal
</ParamField>

<ParamField path="A2+" type="signal">
  Inner shaft motor's coil A positive signal
</ParamField>

<ParamField path="B2+" type="signal">
  Inner shaft motor's coil B positive signal
</ParamField>

<ParamField path="B2-" type="signal">
  Inner shaft motor's coil B negative signal
</ParamField>

## Attributes

<ParamField path="outerHandLength" type="string" default="30">
  The length of the outer shaft's hand, between "20" and "70"
</ParamField>

<ParamField path="outerHandColor" type="string" default="gold">
  The color of the outer shaft's hand
</ParamField>

<ParamField path="outerHandShape" type="string" default="plain">
  The shape of the outer shaft's hand: "plain", "arrow", or "ornate"
</ParamField>

<ParamField path="innerHandLength" type="string" default="30">
  The length of the inner shaft's hand, between "20" and "70"
</ParamField>

<ParamField path="innerHandColor" type="string" default="silver">
  The color of the inner shaft's hand
</ParamField>

<ParamField path="innerHandShape" type="string" default="plain">
  The shape of the inner shaft's hand: "plain", "arrow", or "ornate"
</ParamField>

### Examples

| Result                   | Attrs                                                                                 |
| ------------------------ | ------------------------------------------------------------------------------------- |
| Arrow inner hand         | `{ "innerHandLength": "40", "innerHandShape": "arrow" }`                              |
| Ornate hands with colors | `{ "innerHandColor": "red", "innerHandShape": "ornate", "outerHandShape": "ornate" }` |

## Using the biaxial stepper motor

The biaxial stepper motor is made of two individual stepper motors. Check out the [wokwi-stepper-motor](/parts/wokwi-stepper-motor#using-the-stepper-motor) and [wokwi-a4988](/parts/wokwi-a4988) documentation for more information about using stepper motors and their simulation behavior.

## Simulator examples

* [Arduino Uno driving a Biaxial Stepper Motor](https://wokwi.com/projects/344254821712265811)
* [Biaxial Motor with two A4988 drivers](https://wokwi.com/projects/345206751024382546)