MultiWii

So MEGA boards have several Serial ports. One is used for GPS, one for GUI or OSD or ETC.

It is unclear to me, can i use OSD and GUI at the same time, if Yes then how? I know that i can not program the board with OSD connected. How can I run OSD on one serial port and the GUI on another?

I struggled with this. On v2.2 at least, any "spare" serial port just seems to sit there waiting for an MSP connection. So long as you have your baud rates set correctly you can have devices on each port at the same time without any additional configuration.

P

https://www.facebook.com/photo.php?v=10201181927138730&l=7785695823220275863

Here is a vidéo showing That it works.