Like I stated before, default values for JJRC JJPRO P175 are flyable. But there is a huge difference between flyable and flying good.
I've spent few LiPos trying to make it fly just better than on stock values, and here is the most important fragment of CLI dump from my short tuning session.
- OneShot125 enabled
- Gyro filtering improvements
- Lower P gains
- Lowered D gains
- Raised I gains
- Raised Rates
feature ONESHOT125 set i2c_highspeed = ON set gyro_sync = ON set gyro_sync_denom = 8 set gyro_lpf = OFF set gyro_soft_lpf = 90 set p_pitch = 32 set i_pitch = 49 set d_pitch = 18 set p_roll = 32 set i_roll = 45 set d_roll = 18 set dterm_cut_hz = 80 set rc_rate = 90 set rc_expo = 65 set rc_yaw_expo = 0 set roll_rate = 70 set pitch_rate = 65 set yaw_rate = 55
Important: those settings apply only to 4S batteries. On 3S PIDs will be probably too low!