Ok then let me toss up some links so you can see what they are.
First the Arduino DUE ( the master )
Arduino Due - assembled [Due] ID: 1076 - $49.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Next the Arduino Boarduino ( the slave )
DC Boarduino (Arduino compatible) Kit (w/ATmega328) [v1.0] ID: 72 - $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Now the Edison with Ardunino break out board
Intel® Edison Kit w/ Arduino Breakout Board ID: 2180 - $109.95 : Adafruit Industries, Unique & fun DIY electronics and kits
The master will do all the heavy lifting as in processing the sensors and controlling the motor speed controllers. That includes the IMU ( gyro, accelerometer, altimeter, compass, GPU ). As events occur they will have a number attached to them and fed to the slave. And on top of that several of the flavors of the LCD display have RGB back lighting so use that to not only punctuate the message, you can use it to indicate events such as lighting the back light in red to show a low battery status. Even though your platform may be too far away to see the text, the color could be seen.
The slave will have text messages that have the numbers also attached to them. When the slave matches up the numbers, it displays the message on an LCD display. And logs them for future reference. No more having to figure out what that blinky LED is trying to convey. You'll have it in plain text.
Since the DUE has 12 PWM ports (Whereas the Edison only has 4 ) I'll be able to not only fly a quad, hex, or octo, I'll be able to control a gimbal as well. And with it's extra GPIOs, I'll be able to configure FAA style lighting.
I'm thinking of putting all this on a 6 rotor (hex) as it will have the lift capacity to handle all the extra weight. Put the added bonus of being able to land gracefully if one of the rotors craps out.
There is a young man who did something like this but he had too many devices in the connection link and had terrible lag. He used an app on his phone as the controller. From what I saw in the videos, he had the phone linked to a laptop. Then the laptop fed the data to a Arduino UNO with an Xbee transceiver. That in turn talked to another Xbee tied to the UNO controlling the platform. The sensors in the phone controlled the direction while the app had a throttle and a software on/off switch. It would be ok if the phone spoke directly to the UNO on the platform instead of having to jump through so many hoops.
I'm NOT going that route. I'm going to be using a Spektrum AR8000 as the link to the onboard controller. Since I have a DX7s and a DX9 transmitters, off the shelf to me is the way to go. And using OTS hardware not only is the radio range better, but programming in the transmitter will be able fine tune the platform. Otherwise tweaking the program would be required.
So this is where I am with the project. Planning and procurement stage. I'm taking it slow as there's going to be a lot of time and money tied up. Getting in a hurry can only lead to a disaster.
Comments or questions are welcome.