# Step 7: Install GPS

## OPTIONAL PX4-ARMING-BRD 

{% hint style="success" %}
Note that not all kits use the GPS 

An alternative is to use PX4-ARMING-BRD that is also included in the kit 
{% endhint %}

An alternative to using the GPS below is to use PX4-ARMING-BRD. Using the same GPS cable and connector location, this board is typically included in most versions of the kit and provides the following:

* ARMING Switch
* Status LED
* Beeper  
* (and no GPS functions.)

<figure><img src="https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FxyQySZOsLyqYy0wWrcbQ%2FMicrosoftTeams-image%20(11).png?alt=media&#x26;token=e39dd908-6ef2-44cb-8dcb-e559f7f4972c" alt=""><figcaption><p>PX4-ARMING-BRD</p></figcaption></figure>

## Task 1: Gather GPS parts

Start by gathering the GPS. All the parts you need for this step are included in the GPS package.

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FF0dVHeatFfZjVzlJHFXc%2FIMG_6012.JPEG?alt=media\&token=01ad39a1-3d38-4fc0-9a3b-58c88add0db6)

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FFbIAJxgGgxTJ9ee8NtZh%2FIMG_6013.JPEG?alt=media\&token=c57bf96a-6827-423f-b7d2-2a01fd2a6fd8)

## Task 2: Construct lower GPS mount

Gather the lower mounting rod holder and the short carbon rod. You will also need one of the set screws from the baggies.

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2F41zSSv5htkmzFTpn1eof%2FIMG_6014.JPEG?alt=media\&token=a2878bd3-f493-4bd9-9ca3-c8d72f610715)

Place the carbon rod into the mount with the flat side facing the set screw hole.

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FeRcUnx0grXEV5PQIE1EB%2FIMG_6016.JPEG?alt=media\&token=f4da87cd-3517-4012-af86-ff48e0620b28)

Fasten the set screw.

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FU5KychQ6wKmnqcUvb0e6%2FIMG_6017.JPEG?alt=media\&token=f8b87440-2647-4643-8ac3-3b493c42b7ab)

Attach this assembly to the lower mount like so:

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2F6Ze0mfSE7vUqa06kf9M7%2FIMG_6019.JPEG?alt=media\&token=1f056284-152f-4a43-9f2d-4a10d9ec1b5a)

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2F7k2TYrVjWjwazs1celr1%2FIMG_6020.JPEG?alt=media\&token=2eec94ff-20a1-4a9c-a136-231b8e627e4d)

## Task 3: Construct upper GPS mount

Gather the upper mounting platform and the other set screw.

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2F1ObwKQU7MDavGNvxPIHP%2FIMG_6023.JPEG?alt=media\&token=aa2f5716-e826-4012-b190-7d5d92a5764b)

Attach the upper mounting plate with the set screw. Make sure that the flat side of the shaft is facing the set screw.

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FGCN76h8araStyUKALLBq%2FIMG_6025.JPEG?alt=media\&token=aace548c-59aa-42eb-ab20-aea1662aa2e7)

## Task 4: Attach GPS to PCB

Gather the baggie with 4 bolts and 4 locknuts.

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FtThFOLJ2XGLHtFZx82Jb%2FIMG_6026.JPEG?alt=media\&token=87804fe0-e377-4df1-b498-b1b8985a42f1)

Attach the GPS mount to the PCB like so:

{% hint style="info" %}
Note: You may need to adjust the position of the GPS slightly to accommodate the Camera mount installation as described in future next steps.&#x20;
{% endhint %}

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2F1dUjgttXOeiIu1Qnpeqr%2FIMG_6028.JPEG?alt=media\&token=e19359eb-c4d3-4ef3-8b60-3bc9999f8cc6)

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FrO9Sc1A9DfeS99k5t7AE%2FIMG_6029.JPEG?alt=media\&token=f238044b-1414-4913-ac5d-69003196b753)

## Task 5: Attach GPS to mount

Apply the 3M double sided tape to the top of the mount.

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FJ61V7eLtVKrm0NDAZnns%2FIMG_6032.JPEG?alt=media\&token=b6dfb848-3533-444b-819e-6750a8050fcc)

Attach the GPS to the tape and plug the cable into te GPS port on the FMU. We suggest wrapping the cable around the mount a couple times to catch some slack.

{% hint style="warning" %}
Make sure that the GPS is pointing perfectly forwards!
{% endhint %}

![](https://2412084329-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-L9GLtaxrQtBdBRsFIJB%2Fuploads%2FwXxlKKvOwspz1bleSCyU%2FIMG_6034.JPEG?alt=media\&token=119afc0c-2ccd-46de-b717-de10d82b3f19)