# 4 🔌 Connect the Wires

## Servo wiring principle

<figure><img src="https://2275978772-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MPQ2vWEZUH7ol6XE55o-887967055%2Fuploads%2FucsvEsTC3QnDXus2HpcW%2Fjoints.jpg?alt=media&#x26;token=70957280-bab1-4f30-9c3a-6aa5fca0a889" 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 %}