This document discusses model aircraft built with open source components. It describes common types of model aircraft like planes and helicopters, how they are controlled with radio transmitters and receivers, and how first person view (FPV) systems allow pilots to see what the aircraft sees in real time. Open source autopilot, navigation, and camera systems that can be used are also outlined. Specific component recommendations are provided.

1. Modellflyg med open source
Björn Stenberg
Delägare och konsult på Haxx AB
Nybliven flygnörd :­)

2. Vad är ett modellflygplan?

3. Hur styrs det?

4. Turnigy 9XR
Arduinobaserad
Firmware: ER9X
https://code.google.com/p/er9x/
Open source handkontroll

5. OpenLRS
Arduinobaserad
Firmware: OpenLRSng
https://github.com/kh4/openLRSng
Open source radio

6. Och så ett flygplan

7. Whee!

8. Två sorters flygning
●
LOS ­ Line of sight
●
FPV ­ First person view

9. Line of sight

10. First person view

11. FPV kräver mer utrustning
●
Kamera
●
Videosändare &
­mottagare
(Analog kompositvideo)
●
Bildskärm/glasögon

12. FPV kräver mer koll
●
Ovant perspektiv på världen
●
“Allt är bara grönt”
●
“Vart är hemåt?”

13. Navigationshjälpmedel
●
OSD med GPS
●
Pekar hemåt, visar avstånd
●
Visar mycket annat också

14. Många OSD­alternativ
Ett par open source:
●
MinimOSD
Arduinobaserad
http://minimosd­extra.googlecode.com
●
CL­OSD
AVR­baserad
https://code.google.com/p/cl­osd/

15. Autopilot
●
Heading lock
●
Loiter
●
Waypoints
●
Return to home
●
Ardupilot
(Arduinobaserad)
https://github.com/diydrones/ardupilot

16. Att se sig om
●
Pan/tilt servon
kopplas till radion
●
Open Headtracker
Arduinobaserad
https://code.google.com/p/open­headtracker/

17. Antenner
●
Riktade på marken
●
Rundstrålande i luften

18. Vid problem
●
Failsafe radioinställning = RTH
●
GPS tracker

19. Demo

20. Airplane Multiplex Easystar
2 ARF
http://www.hab.se/multiplex-easystar-ii-rr-p-12081-c-403.aspx
Similar cheaper airplane Hobbyking Bixler 2
ARF
http://www.hobbyking.com/hobbyking/store/__24474__Hobbyking_Bixler_2_EPO_1500mm_w_Brushless_Motor_Servos_and_Opt
ional_Flaps_ARF_.html
Controller Turnigy 9XR http://www.hobbyking.com/hobbyking/store/__31544__Turnigy_9XR_Transmitter_Mode_2_No_Module_.html
Radio transmitter HK OpenLRS http://www.hobbyking.com/hobbyking/store/__27095__OrangeRx_Open_LRS_433MHz_TX_Module_JR_Turnigy_compatible_.htm
l
Radio receiver HK OpenLRS http://www.hobbyking.com/hobbyking/store/__27096__OrangeRx_Open_LRS_433MHz_9Ch_Receiver.html
Camera with pan/tilt Fatshark "CCD
killer"
http://www.electronicarc.com/catalogo/product_info.php?cPath=43_52&products_id=332
Video transmitter & receiver 1.3 GHz 500mW http://www.electronicarc.com/catalogo/product_info.php?cPath=43_49_70&products_id=413
Proprietary OSD & autopilot Cyclops Storm http://www.foxtechfpv.com/cyclops-storm-osd-v104-firmware-p-688.html
Open source autopilot 1 APM 2.5 http://store.3drobotics.com/products/apm-2-5-kit
Open source autopilot 2 Crius AIOP v2.0 http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=765
Open source OSD MinmOSD http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=862
GPS module u-Blox CN-06 http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=763
Current sensor Flytron Ultralight
25A
http://www.flytron.com/sensors/60-ultralight-25ah-current-sensor.html
Headtracker cpu Arduino Nano http://dx.com/p/nano-v3-0-avr-atmega328-p-20au-module-board-usb-cable-for-arduino-118037
9-axis IMU GY-85 http://dx.com/p/gy-85-6dof-9dof-imu-sensor-module-for-arduino-148436
Control transmit antenna DIY "moxon" http://www.rcgroups.com/forums/showpost.php?p=24602393&postcount=1123
Control receive antenna DIY "turnstile" http://www.rcgroups.com/forums/showthread.php?t=1417408
Video transmit antenna Skew planar wheel http://www.circular-wireless.com/en/products-page/skew-planar-wheel/spw12r/
Video receive antenna IBCrazy Crosshair http://www.readymaderc.com/store/index.php?main_page=product_info&cPath=11_45_52_100&products_id=823
Video recorder RMRC FPV1000 http://www.readymaderc.com/store/index.php?main_page=product_info&cPath=11_14&products_id=1204
GPS tracker Mini GPS GSM
tracker
http://dx.com/p/portable-mini-gsm-gprs-gps-tracker-for-personal-remote-positioning-33331
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