PID for quadcopter

Please help me
I'm want to make a PID for my quadcopter by using gyro MPU6050 For my receiver transmitter i used
the RF433MHZ to command for brushless motors. it works good. I don't now where to start. as soon as my quaricoptère begins to rise ( to fly ) it starts to undergo oscillations
thank you for help.

I don't now where to start.

Perhaps with Google. This problem has been solved.

I suggest you google ardupilot.

Don't post the same question three times !

Duplicate threads merged.

Don't post the same question 4 times !