Hi.I'm a newcomer in the world of UAVs and it's my first thread on DIY drones forum.I was a modeler and my hobby was R/C planes but now I want to learn more about UAVs.For UAV, I need to use on screen display (OSD) but unfortunately I have no valuable information about OSDs and I did not work with OSD/Auto Pilot/GPS and ...May I ask you to give me some short descriptions about these things:…See More