[Mallowsthecat]

is there a flight controller in the market that does not need
a pc to configure/calibrate it, is there a plug n fly FC out there
that flies well?

[mr_w]

I'd guess only if it comes with frame, drivetrain and battery, factory-calibrated for it.

[TheOtherCliff]

KK 2.0 FC has buttons and an LCD on it so you do all configuration without a computer.

That was my first quadcopter board years ago.

https://www.ebay.com/itm/KK2-1-5-MINI-Flight-Controller-Control-Board-LCD-KK2-0-KK2-1-6050MPU-644PA-MULTI/272319454835

https://hobbyking.com/en_us/hobbyking-kk2-1-5-multi-rotor-lcd-flight-control-board-with-6050mpu-and-atmel-644pa.html

rcgroups.com has a lot of threads on the KK boards (2.0. 2.1, 2.1.5) with several users there being programmers who have released enhanced firmware for them.

[mr27t]

I answered this on 11/08/17 see post MotionRC (HobbyEagle X6 6-axis) FC.

While everyone else is tweeking with their settings,,, I will be out flying!!!