Got my flight board shield today…!!!
… and a few more. 
Yes… in fact they send 5 more than the order… 
Boards look good from here.
Am I right in saying that there are minimal traces, and that you expect all boards to be good?
Which board house did you use?
What all does your board do?
I just learned that one approach is to use 3 or 4 gyros, putting one on each Tri-copter leg, a yaw servo, and then use flight controls from a heli (my limited understanding). What are you doing with these boards?
Alan KM6VV
4 gyro is true only with a tricopter.
with a transmitter that do ccpm mixing
don’t have autolevel capabilities
My board is a multiwii shield.
can do any config and autolevel.!
Thanks for the link!
It answers several questions.
Alan KM6VV
Cool, like a flying beetle!
With a better set of legs it could be real nice…
Yes a set of 3DOF legs. A Phoenix with rotors. How cool would it be to let the legs hang a bit backwards while flying
Could also move with inclination in the air.
Very cool!
It needs six real (3DOF) legs, and six rotors!
Alan KM6VV
Yes…
I don’t know if on a QuadCopter config. We could make a sitting position that the legs are between each boom… low profile…
So I take it there are at least two major ways to fly a 'copter, with a little translation and helicopter controls, or a full, all out, computer approach?
You’re 'bot doesn’t appear to have a yaw-able “tail” rotor, so I take it you do full computer approach? If you can do four rotors, why not six? And I think you said that it was not possible to “comp” for a dead rotor? I’d think it would just be a matter of re-distributing (translation) of the required force vectors for each rotor?
Maybe I can find some good white papers on the subject of helicopter attitudes. I’m somewhat familiar with fixed-wing aircraft (and Submarine!) attitude controls, and I thought I knew a little about helicopter (conventional) attitude controls as well.
I’m looking at the 9DOF Razor
One or two different parts then what you’ve used, I think, but I’m already familiar with a few of them.
Are you planning to run AHRS?
I would’ve liked a GPS on them (the Surveyor NAV board had one, but I had to cancel my order, they still haven’t shipped).
The Copernicus DIP module would be easy to add:
About the best, and is made by Trimble. I’ve worked with Trimble Scout Master GPS systems in the past.
Above URL is for a DIP carrier version, you could mount the chip directly, although with it’s package, it might be considerably more difficult. But then you only really need two pins connected.
Alan KM6VV
A HEXcopter is doable but if you loose a motor you will not have a backup.
You need at least 8 motor to do that.
There is Yaw capability. All prop are not in the same CW and CCW
So variation in motor speed give you Yaw control, and good Yaw…
i have my IMU comming this week
Not mine but i will be re-seller.
- built in 3.3V voltage regulator so you can supply this board with 5V
- built in 2.2k pull up ( with a solder switch to enable/disable them )
- ADXL345 Accelerometer
- ITG-3200 Gyroscope
- HMC5883L Magnetometer
- BMP085 Barometer
http://farm8.staticflickr.com/7011/6426295111_e79014779d_z.jpg
OK, I can see how the various attitudes are controlled (roll, pitch and yaw).
But you’re saying only 90 degree axis 'bots (quads, octos) can map out a failing rotor?
I see that I don’t have a BMP085 Barometer in the Razor. But The Copernicus GPS has excellent elevation tracking. How does that compare to a barometer? do you “zero” your barometer to the “airport” reference?
I just realized that you’re mounting the “modules” versions of these sensors, not just the sensors themselves.
What code runs on this new IMU? or yours? 10DOF? What’s the extra axis? OK, barometer gives elevation (indirectly). Not a real axis.
Multiwii, Ardupirates or Aeroquad configurations ?
Alan KM6VV
No i mean that under 8 motors you can’t have redondancy.
If you loose one motor, the others won’t be able to keep you in the air.
(The only 6 motor config that offer that is a Y6
I use a arduino software, i don’t play much with it yet.
The barometer is not really good in the soft right now, if you can integrate GPS it’s a good way to go.
I don’t understand you on that one… (My english again)
The IMU is only a standalone sensors board, you need to connect it to something to use it.
I have it hook to a Arduino Pro Mini 16mhz 5v.
It communicate with i2c
I probably could have phrased that better.
The MultiCopter parts list has all parts (IC’s) on “breakout” boards. So you’re mounting the breakout boards instead of just the IC’s on Your board.
So it’s the total LIFT required, not so much the re-apportionment of the thrust vectors.
Yes, direct elevation along with azimuth in a NEMA #0183 GSV message.
Nice PIX!
That pix was a quick Google Image search… LOL
Yes it look nice…!
In fact since it’s i2c, all sensors have their own adress and you ask for info.
You have all sensors info on demand.