Nighthawk250


 * Building a FPV Drone: HobbyKing Spec Class 250fpv

Current setup

 * Power calculator
 * Motor: 4.4A max, 2-3s lipo, max 49W
 * ESC: Afro 12A SimonK (2-4s lipo), BEC: 0.5A Linear 5.0v
 * Props: Gemfan 5030
 * FCU: CC3D Atom 4.8-15V 70mA
 * Batteries
 * 11.1V 3S 1800mAh 20C
 * 11.1V 3S 1000mAh 20C
 * 11.1V 3S 2200mAh 30C
 * 14.8V 4S 1800mAh 25C (non usable with these motors)
 * FPV Camera: 1/3 Sony CCD 7-13V (3S) current ?
 * FPV Transmitter: 7-24V 190mA
 * Receiver: current ?
 * Weight:
 * Theorical weight: ~415g
 * Calculated weight: ?

Upgrade planning

 * More powerfull motors ! 18g 88.8W http://fpvracing.ch/en/motors/62-emax-mt1806-2280kv-cw.html
 * next frame ;) http://www.minihquad.com/frames/blackout-mini-h-quad/

Frame

 * Basic assembly guide: https://www.youtube.com/watch?v=r8ALzUluyXM
 * An other assembly guide: http://www.cardella.tk/2014/09/fpv250-quadcopter-build.html

Configure FCU: CC3D Atom

 * Install OpenPilot GCS in an Ubuntu 15.04 chroot https://wiki.openpilot.org/display/WIKI/Downloading+and+Installing+the+Ground+Control+Station
 * Hardware setup: https://wiki.openpilot.org/display/WIKI/CopterControl+-+CC3D+-+Atom+Hardware+Setup
 * Full introduction to building a quad with the CC3D https://www.youtube.com/playlist?list=PLYsWjANuAm4r-E61stLchCR4bzY3NmDNh

Batteries

 * https://www.reddit.com/r/Multicopter/wiki/power
 * C rating : the higher, the higher current you can draw http://www.rcheliwiki.com/C_rating
 * S is the number of cells, and is representing the tension (1S=3.7V, 2S=7.4, 3S=11.1V, ...)
 * Balancing: Cells need to be a the same charge level so we can avoid overcharging.
 * It's a good idea to always use the balance mode to charge a multiple cells battery
 * http://www.rcheliwiki.com/Balance_charger
 * Use the charger to check and rebalance cells https://www.youtube.com/watch?v=AChoy_PsVEg

Gallery

 * 1st flight https://www.youtube.com/watch?v=RCSfAMZ6bm0
 * FPV Camera setup https://www.youtube.com/watch?v=aNmkK1-EYYc