crystal garris's Discussions (20)

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100KM

lets get organized!

Ok the skype call did not go as planned. So I figured it would be best to use this discussion to aid in getting organized so we can communicate effectively. Here are the goals for this week concerning organization.

#1 code repository and version contr

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100KM

Sony A7R + techpod

So, I have people who want to be able to put cameras in the techpod like the A7R for photogrammetry. It would mean taking the automatic camera bay doors and moding it plus adding a mount to it for the camera. problem with the current bay doors is the

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100KM

Cad file format

so, having a difficult time converting everything to .igs format. apparently it won't hold a mesh. I wanted to use that because I have always had good luck with the format before. I am using rhino CAD but the idea is to use a open/universal format or

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100KM

diy rate table

so the big boys use it. diydrones uses them . I am going to need one soon. and I've been thinking about how to build one on the cheap.a few thoughts1 cordless drill with an rpm meter (probably not very accurate but cheap)2 stepper motor (rpm accurate

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100KM

GPS ground speed 2D or 3D ?

Does anyone know if gps ground speed data is purely 2D or can it compensate for changes in altitude ?ie... if a plane was flying in still air and it was in a 45 deg dive @ 30 knots airspeed , would the gps speed register 15 knots or 30?

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100KM

kalman filter for idiots

x_angle += dt * (gyro_angle - x_bias);P_00 += - dt * (P_10 + P_01) + Q_angle * dt;P_01 += - dt * P_11;P_10 += - dt * P_11;P_11 += + Q_gyro * dt;y = acc_angle - x_angle;S =P_00 + R_angle;K_0 = P_00 / S;K_1 = P_10 / S;x_angle += K_0 * y;x_bias += K_1 *

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100KM

Will build UAVs for food

not quit that bad but of course R&D is always the first on the chopping block . personally I've been temporarily laid of from peak aviation . luckily with Boeing in my back yard i will be going back to making parts for airliners I'm sure . still cool

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100KM

watchdog vs failsafe

in my basic x AP ive been using a whatchdog timer in place of a failsafe and it has worked fine . i have even had bad gps , waypoint data ect and have had no problems recovering manual control . would use of a watchdog timer on the arduino project he

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100KM

shout out from barcamp seattle

just finished a presentation about DIY at barcamp !! met lots of great people , talked till my throat hurt , handed out some contact info got lots of people looking at DIY . and got some people interested in my AP project. Barcamp was awesome just wi

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100KM

Robot basic

ive been playng with RobotBASIC for a simple ground station so far im having good results i can send joystck commands over a serial port and ive started work on live tracking over a "map" . it very easy to code and it has a simulation enviroment to p

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100KM

FMA FS-8 malfunction

ok i just about had a fly off yesterday , was finishing 45 min duration test , flipped switch to manual mode and added throttle and banked to turn towards myself , i soon lost all control of all surfaces and throttle. i only have rudder going through

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100KM

looking for a windows coder

Hey everyone ,im looking for someone interested in working with me on an auto pilot program . I have an ap working in sim and will be live testing next week as soon as the gps modual comes . I am good with small embeded apps , motion control , serial

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100KM

geo crawler 4

i've messed around a little with the bs2 code for the geocrawler 4 project and would like to point out one flaw:Get_Angle:DeltaLong = -1 * DeltaLong 'reverse to conform with ArcTangent coordinate standardsDeltaLat = DeltaLat * (128 / 9999) 'adjust th

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