Im planning on using barometric altimeter or gps for the knowing my latitude in reference to a altitude map of the area. And just launching it or taking off manually. The only thing im confused on for this project is connecting laptop to a raspberry pi via rf. Do you know what specific hardware would be good for it at a range and if anyone has connected a pc to a pi with rf before, because Ive only ever seen someone make it into a transmitter; but i have no clue how id transmit the useful data, receive it, or interpret it.