"I have an ersky9x revb and it's a really great board, audio features are really cool when piloting arducopter, you can program a lot of text2speech alerts to perfectly know the state of your aircraft"
"Hi,i'm a new happy arducopter user, i've flashed my IMU with 2.9.1 and INERTIAL_NAV_Z disabled on my quad since (The results are not good with acc. and i like to rely on my baro+sonar)Alt hold is OK but when i want to climb or descent, the movement…"