# Benefits upgrading BR2 with Navigator and New Raspberry

**URL:** <https://discuss.bluerobotics.com/t/benefits-upgrading-br2-with-navigator-and-new-raspberry/15434>\
**Category:** BlueROV2\
**Tags:** raspberry, navigator\
**Created:** [November 6, 2023, 11:30pm UTC](https://discuss.bluerobotics.com/t/benefits-upgrading-br2-with-navigator-and-new-raspberry/15434 "2023-11-06T23:30:16Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![EliotBR](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/eliotbr/32/6937_2.png) [@EliotBR](https://discuss.bluerobotics.com/u/EliotBR)\
**Post date:** [July 19, 2022, 1:19pm UTC](https://discuss.bluerobotics.com/t/benefits-upgrading-br2-with-navigator-and-new-raspberry/15434/4 "2022-07-19T13:19:31Z")

</div>

> [@btrue](#):
>
> Anyone know if it’s worth upgrading to the Navigator controller?

It’s not an essential upgrade if you’re already happy with your existing flight controller, but it may still be of interest - there’s an overview of both [in the Technical Reference](https://bluerobotics.com/learn/technical-reference/#flight-controller-boards) if you want to compare. Functionally speaking the Navigator

- is a bit more tailored to ArduSub use-cases
  - e.g. there are leak probe connectors built in

- has a couple of extra PWM outputs
- has more usable connectors
- has more potential for expandability
  - we’re planning to make libraries available for accessing the sensors and connectors, so that they’re accessible from user code outside the autopilot firmware, but that hasn’t been done yet

- ~~_does not yet support relay outputs_~~ → relay support added in ArduSub 4.1.1
  - ~~I believe there’s currently a working branch that’s being tested - it should hopefully be merged in to the main ArduSub reasonably soon~~

- is more robust when updating firmware (because it’s just files on the Raspberry Pi)
- has easier to access log files
  - BlueOS [does not yet support directly retrieving Pixhawk logs](https://github.com/bluerobotics/BlueOS-docker/issues/457)

If you do decide to upgrade,

> [@New Product: The Navigator Flight Controller and BlueOS!](https://discuss.bluerobotics.com/t/new-product-the-navigator-flight-controller-and-blueos/12231/23):
>
> there’s … a [Navigator Retrofit Guide](https://bluerobotics.com/learn/navigator-retrofit-guide/) for people with an existing Pixhawk + Raspberry Pi 3B BlueROV2 🙂

---

_[View the full topic](https://discuss.bluerobotics.com/t/benefits-upgrading-br2-with-navigator-and-new-raspberry/15434)._