MultiWii

Hello,

I hope that you can help me with the problem.

For an autonomous flight with my quadrocopter I want to change the multiwii code. I want to find the values for pitch, roll, yaw and throttle in the code. These angles will changed by using the transmitter+receiver. But I do not find these angle in the code to change them. Can anybody tell me where these values in the code are?

one way of finding them is through Protocol.cpp.
There will be a message for RC (MSP_SET_RAW_RC), you can trace it down to the right places.

Normally you would want to use MSP for changing pitch,roll, yaw, throttle...

I do not want to work with the raw data of the RC. I only want to change four values: pitch, roll, yaw and throttle. It means I do not want to change the values with the transmitter/receiver but I want to change them manually in the code.

Not sure if I get you. You can change RC data directly in the code. I would modify Protocol.cpp and overwrite serialCom function and set rcSerial and rcSerialCount.
3 lines change is all you need to change them in the code.