basically i'm trying to drive a rgb strip with my Computer. Since I already failed multiple times trying to biuld a driver circuit for the Strip I had the idea to drive it with standard Controller that already comes with the Strip.
The Controller is IR Enabled an can only be driven by a Remote. My question now is if its possible to probably remove the ir reciever led from the controllerand connect the cables to the arduino and drive it with the arduino?
You'd be better off figuring out the protocol used by the remote and reimplementing that with the Arduino to flash an LED at the strip. Just about any color LED (white or red preferred) should work at short distances -- doesn't need to be an IR LED if you don't have one.
Once you understand the protocol, yes, you could remove the IR receiver from the controller and emulate the remote directly to the receiver's digital out pin.
yes its possible to do directly, but much easier to use the IRremote (or IRLib) library to decode the signals & send the 'cloned' IR signal from the Arduino.
To control it directly you will have to record the timings of the demodulated IR signal and play them back as required. You may also have to check for different voltage levels.
These signals are usually 32 bit NEC, 90%+ of the time.