Sending Flight controller's PWM signal indirectly to ESC using Arduino UNO

Other Hardware Robotics
7

Ya, that's the problem I don't know how to do that.
I tried

digitalWrite as output for pin

void setup(){
  Serial.begin(9600);

  pinMode(PWM_DATA, INPUT);
  pinMode(PWM_DATAOUT, OUTPUT);
}

void loop(){
  digitalWrite(PWM_DATAOUT, PWM_DATA);
}

analogWrite as output for pin

void setup(){
  Serial.begin(9600);

  pinMode(PWM_DATA, INPUT);
  pinMode(PWM_DATAOUT, OUTPUT);
}

void loop(){
  analogWrite(PWM_DATAOUT, PWM_DATA);
}

these both doesn't work... Or I'm doing something wrong