Hi.
I am preparing to install an RGB LED indicator on a BlueROV2.
I wired it as shown in the photo for testing, but the LED is not working.
It works when tested on an Arduino.
Is there something else I need to configure?
Hi @TridentOcean, welcome to the forum 
Power for peripheral devices attached to the Navigator is not sourced through the Raspberry Pi, to avoid it restarting from under-voltage. You’ll need to supply it through the “AUX 5V” connector (just below the “RGB” one you’ve connected the LED to).
I’ve raised internally that it would be helpful for us to include this information in the product guide
Are you hoping to have the indicator reflect the autopilot’s normal “STATUS” LED displays, or to control it via some other means?
Dear. Eliot
Thank you for your reply. Since there was no separate explanation on the product description site, I assumed that it is powered via a Raspberry Pi.
I will install it on a BlueROV2 to verify.
Thank you.
There are instructions for powering the Navigator in the hardware setup guide, including peripherals attached to it. That said, we do not currently have instructions in the RGB indicator usage guide for how to integrate it with a Navigator (which seems valuable for us to add, as I mentioned).
If the only thing you’re powering from the Navigator header pins is a single LED indicator then it should be fine to fetch that power from the Navigator, which you can do by connecting the LED’s power wire to the + pin of the “AUX Leak” or “RC” connectors. The separated power circuits are to allow powering heavier loads like a whole array of LEDs, or servo motors, or Lumen lights, etc, which draw enough power that pulling it from the Raspberry Pi’s supply could cause a system reboot.
I’ve just added a “Using with a Navigator” section to the guide, covering this powering situation, as well as the different control options. Hope that helps!