Raspberry Drone

[Damiano]

Hello to everybody! I'm a new register
So, I'm would build a quadcopter drone with raspberry (as receiver from android phone) and a multiwii FC. My question is: The multiwii has a 4 channel input (throttle, roll, pitch and yaw), so the raspberry should send an HIGH/LOW signal (or pulse?) to these channel, but how? Or better, how must be the signal?

Thanks for your support!

 

[GJH105775]

The signal will be in PWM (Pulse Width Modulation).

@Nick will be a great resource, he built a controller using Arduino, and is working on a quadcopter. It is not actually too hard.

 

[Nick]

As George said, the 4 channels would be controlled with PWM. If you mean a multiwii FC by connecting a Pi and an Arduino together then it shouldn't be too hard. However, you want to stay clear of sending input through the serial monitor where this ( in my experimenting ) has slowed down the Arduino drastically and could not keep up with the gyro/acc readings and running the PID controllers.