"Are you looking to make your own program, or are you just looking for something to get you flying?"

"the brushless will just fine in the rain. The bearings dont do so well and need extra care. Look at OpenRov they are using brushless motors as thrusters in salt water!"

"I've wondered about flying in rain. Would an outrunner motor work if it was wet? If you taped over your servos and cut little slits in the tape for the horns to poke through, and generally taped over any air holes in the fuselage, could…"

"I've come across a few RC boats that had isolated the motor from the water, and used a bushing instead of bearings where the drive shaft. I've also come across some mentionings of using a non-conductive fluid like mineral oil to help ward…"

"Hello Alen, our company is producing totally waterproof frames, so you are right about the RPM and that BLmotors works under water. The salt might damage the ball bearings if they are not adapte and the copper wire varnish of the coil might get…"

"Don't think of having a PID for each motor, rather, think of having a PID for each quantity that you want to control. For instance, the heading controller/compensator is a single PID that outputs a differential value to clockwise (CQ) and…"

"I think the power rating/wattage of the motor helps determine the flight time. Altough I (still) haven't gotten to testing this theory out. :("

"What's the power rating, Kv, and operating voltage for your motors?"

"You can talk directly to the craft via Windows Hypertermal and using an Xbee transceiver. You can make your programs treat the Xbee just like a traditional modem, add support for a COM port (a.k.a Serial Port) and there ya go."

"I haven't come across any books that discuss it, but I would imagine the codes are proprietary to each developer. You might pick up a few ideas in the Ground Station forum here."

"Well, when it doubt, try it out! It's not a critical part of the software anyway, but it could give you extra flight time. :)"

"Huh? If you use the PCINT, then you can get an interrupt on most of the GPIO pins. Don't tell me you've already used up all of your GPIO. :P At any rate, 800Hz is more than enough. You should put the core to low-power mode whenever…"

"You could stick your RC receiver signals onto the PCINT pins. That way, you can have the MCU operate an ISR every time a rising or falling edge of the PWM pulse reaches the pins and not worry about waiting for just the right time to catch it. The…"

"So, your counting on the time it takes for the accelerometer to pump X amount of samples over the I2C as your system clock? I don't quite follow... could you walk through your hypothetical control loop step by step please?"

"Well, you need to first build up some sort of functional diagram or a flow chart that explains how your control systems will work. Once you have this figured out to your liking, you can then proceed to coding it with minor trouble. How much do you…"

"Doh, forgot about DC supply currents. Wonder if twisting the + and - supply wires would do any good, you know, like they do with twisted pair's."