This project was started in November 2008. The goal was to learn something about programming, electronics and control loops. Because I always need a cool project to learn new things, it was clear that something that can fly had to be built.
The project started as a "tricopter-only" project, but as I wanted to build smaller vehicles with more payload capacity, I decided to make some quadrotor, hexacopter and Y6 hexacopter firmwares too. My main interest is to build very small MAVs that fly as good as larger ones (or even better) and that can be controlled by wireless video link. I also experimented with autonomous flight in GPS-denied areas (video), and with GPS assisted autonomous hover (video). It would be cool to add more features to this project but I am pretty busy with my PhD research. But maybe one day I could combine my scientific interests with my hobby projects...
-- William

Contact: Shrediquette @ g m x . d e --- All content published under CC Attribution-Noncommercial-Share Alike 3.0 Germany

Shrediquette DLXm

Specifications Shrediquette DLXm
Name: Shrediquette DLXm
Motor shaft distance: 132 mm
Max. dimension: 259 mm
Controller: TriGUIDE mini v2, Atmega328p @ 16 MHz, 5V
Gyroscopes: 3*ADXRS610
Accelerometer: ADXL322
Control modes: Heading-hold or auto-level
Receiver: ACT DSL-4ST
Motors: Roxxy 2216-25
Servo: Bluebird BMS-306BB
ESCs: Turnigy Plush 6A with I²C->PWM converters
Props: 5x3 3-blade GWS

Frame: CFK + CFK tubes + Delrin (POM) hubs & spacers
Battery: 3S, 800 mAh
Max thrust per motor: 237 g
Total current during hover: 4 A
Payload: ~100g
Endurance: 11 minutes
Weight: 230g
Lift-to-weight ratio: 3.1:1

--> Video


FPV with the DLXm:

  • Goggles: Fat Shark RCV922 2.4Ghz AE V.2010
  • Camera: 5V 420 line "CCD Killer" CMOS Camera / CMOS FPV Kamera 420TVL
  • Lens: VD-Optics Mini-Objektiv Fisheye IR-CUT f = 2.1 mm 



Some pictures of my FPV "micro-rocket":

The antenna (dipole):

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