> For the complete documentation index, see [llms.txt](https://docs.adti.camera/adti-camera-px4-or-ardupilot-setup/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.adti.camera/adti-camera-px4-or-ardupilot-setup/relay-setup-px4.md).

# Relay Setup- PX4

This page is to help ADTi camera users to setup relay triggering for PX4.

#### Step 1

Set the TRIG\_MODE to 1 to make the driver wait for the start command and reboot your FCU to obtain the remaining parameters.

<figure><img src="https://1307034048-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9lO30YgbsEWbm8Uk5QRm%2Fuploads%2FIBjNopoAY8TIgiqt2sPi%2Fimage.png?alt=media&amp;token=0fb345f6-f9fe-4e2a-bbb4-be6ae008da92" alt=""><figcaption></figcaption></figure>

#### Step 2

Configuring the trigger to operate in conjunction.

<figure><img src="https://1307034048-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9lO30YgbsEWbm8Uk5QRm%2Fuploads%2Frz8RTsq7PHqpVVc3oFJs%2Fimage.png?alt=media&amp;token=8aa9c008-e942-40ee-aeed-25ab22dfeb26" alt=""><figcaption></figcaption></figure>

#### Step 3

Connect the ADTI camera to AUX port of your flight controller.

<figure><img src="https://1307034048-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9lO30YgbsEWbm8Uk5QRm%2Fuploads%2FrmpHUjYQ4Kj6Dcl03a97%2Fimage.png?alt=media&amp;token=f91d1763-355b-4971-b4dd-c03d98368312" alt=""><figcaption></figcaption></figure>