# External FC

Source: https://forum.modalai.com/topic/3507/external-fc
Category: VOXL 2 and VOXL 2 Mini (https://forum.modalai.com/category/26/voxl-2-and-voxl-2-mini)
Tags: voxl-2
Posted: 2024-05-30 10:53:38 UTC by Jetson Nano
Replies: 2 · Views: 540

## Jetson Nano · 2024-05-30 10:53:38 UTC

Hey @Eric-Katzfey @James-Strawson ,

As I mentioned earlier, I have successfully integrated my Voxl2 with cube orange. I have attached an Optical Flow to my orange cube and I wanted to know how I can send the EKF fused data from my Cube Orange [FC] to voxl 2 [which is a companion computer] and what things I will need to be careful about while doing so.

## Reply by Eric Katzfey (ModalAI staff) · 2024-05-30 15:02:35 UTC

@Jetson-Nano Assuming you are running PX4 on your orange cube then you will get Mavlink messages. You will need to consult mavlink documentation to figure out what message(s) have the data you want. And then consult PX4 documentation to figure out how to get PX4 to send those mavlink messages.

## Reply by Jetson Nano · 2024-05-31 06:09:56 UTC (in reply to Eric Katzfey)

@Eric-Katzfey 
Understood. Thanks
My line of questioning in another topic I posted - " Attempt to reduce drift with the help of stereo camera " is similar. So, I'll close this and take your advice from that.

Thanks again