Flight controller General Issues

[Aditya14Sharma01]

I have multiple issues

1. I am unable to use ibus ( currently using ppm). Having fsi6 and fsi6ab

2. Tuning ( my drone just flips)

3. My mpu6050 is sometimes detected and sometimes not
   When it is not detected, I just connect disconnect esp from my laptop and it is visible again

4. Neither pressure sensor nor barometer is being detected

[rtlopez]

Hi @Aditya14Sharma01

1. IBUS is serial protocol, and must be connected to selected uart rx port.
2. please follow setup guide carefully, https://github.com/rtlopez/esp-fc/blob/master/docs/setup.md, board orientation, motor order, spinning direction, propeller direction are things that are strictly important, one tiny mistake, and drone goes into uncontrollable state immediately.
3. check wiring, ensure you have power supply filtering with capacitors, and avoid ground loops.
4. what sensor do you use and how it is connected?