# 4 🔌 Connect the Wires

## Servo wiring principle

<figure><img src="/files/ndwgzaoPsHyVwzh0XtCh" alt=""><figcaption><p>Observe the wiring pattern on the board</p></figcaption></figure>

{% hint style="info" %}
Note that **NyBoard** has an infrared receiver close to the robot tail, **BiBoard V0** has an infrared receiver close to the robot head, but **BiBoard V1** has **no** infrared receiver.
{% endhint %}


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