German Version: [[http://www.mikrokopter.de/ucwiki/hoppel|hoppel]]

<<TableOfContents>>

= Person =
User: '''Hoppel'''

Real Name: Andre'''
'''

Mikrokopter: Since the Chaos Communication Camp 2007 (workshop organisator)

Blog: http://www.quadrokopter-berlin.de

= Chaoskopter =
Technical Data:

 * Flight-Control 1.2 (machine assembled) / Flight-Control 1.0 (self assembled)
 * BL_Ctrl 1.0 with 10A Fets (self assembled)
 * Robbe Roxxy 2824-34 motors
 * EPP 1045 Props
 * Bluetooth
 * Akku: Powerhouse 2100mAh/2500Ah
 * current Frame: Aluminium-square-type tube
 * current weight: eta. 780g
 * fligth time: eta. 10-23 min
Radio Control: Futaba FC28

= Pictures =
== The Chaoskopter - Stage 1 ==
The build before the Chaos Camp 2007

[[http://gallery.mikrokopter.de/main.php/v/Nachbau/ufo3_k.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=8475}}]]

The finished Kopter after the Chaos Camp 2007:

[[http://gallery.mikrokopter.de/main.php/v/Nachbau/kopter3.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=8478}}]] [[http://gallery.mikrokopter.de/main.php/v/Nachbau/kopter4.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=8481}}]]

== The Chaoskopter - Stage 2 ==
After my first frame was broken i build a new one with a motor axis distance of 46cm. For the cap i used a salad bowl as prototype and make a copy with epoxy and glas fiber.<<BR>>  It's not looking good, but i can see it very good when i fly.

[[http://gallery.mikrokopter.de/main.php/v/Nachbau/chaoskopter_stage2_1.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=9585}}]] [[http://gallery.mikrokopter.de/main.php/v/Nachbau/chaoskopter_stage2_2.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=9588}}]] [[http://gallery.mikrokopter.de/main.php/v/Nachbau/chaoskopter_stage2_3.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=9591}}]] [[http://gallery.mikrokopter.de/main.php/v/Nachbau/chaoskopter_stage2_4.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=9594}}]] [[http://gallery.mikrokopter.de/main.php/v/Nachbau/chaoskopter_stage2_5.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=9598}}]] [[http://gallery.mikrokopter.de/main.php/v/Nachbau/chaoskopter_stage2_6.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=9601}}]]

= DigiCam-Mod =
Dates from the Camera:

 * 7,2 Megapixel
 * 800x578 Pixel video resolution (!!!)
 * TV-Out
Buyed and demounted.

Functions with the RC transmitter:

 * remote trigger
 * Zoom is prepared
 * video transmission for controlling
[[http://gallery.mikrokopter.de/main.php/v/tech/cam_demontiert.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=10196}}]] [[http://gallery.mikrokopter.de/main.php/v/tech/cam_mit_kabel.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=10200}}]]

<<BR>> The camera is mounted under my Kopter. For the remote trigger i used a BL-Ctrl. I modified the flight control source code too.

= MKLight =
The light at my MK is build with a unused BL-Ctrl and 30 LED's. 10 LED's and the resistors are soldered at one stripe of a hole board. Against to the first intention to switch every LED alone, i switch now 10 LED's at one. Because the BL-Ctrl has three Mosfet groups i can only switch three LED-stripes. Continouse lightning is boring, so i implemented some effects. The light can be switched on via the remote control. Therefor i modified the source code of the FC. The FC generated a rising edge which is detected by the BL-Ctrl and used für switching the light effects. <<BR>>

Build: The positive LED contact has to be solder at the top of the BL-Ctrl, the negative contact has to solder at one of the minus pads.For the Switching with the RC/FC i use the INT0 interrupt. Therefor i solder a wire at the ISP-Pin 6 pad. This wire has a connection with the FC - J9. The power source is the LiPo.

Source Code BL-Ctrl: [[attachment:mklight.zip]]

The FC source code modifications::

'''main.c''':

{{{
int main (void)
{
   ...
   PORTD = 0xF7; // LED
  //Hoppel Mod
  DDRC |= (1<<PC6); //J9 as output
   ...
}}}
'''main.h'''

{{{
  ...
  #define CFG_LOOP_LINKS      0x04
  #define CFG_LOOP_RECHTS     0x08
  //Hoppel Mod
  #define J9_HI PORTC |= (1<<PC6)
  #define J9_LO PORTC &= ~(1<<PC6)
  ...
}}}
'''fc.c'''

{{{
  ...
  GyroFaktor     = ((float)Parameter_Gyro_P + 10.0) / (256.0/STICK_GAIN);
  IntegralFaktor = ((float) Parameter_Gyro_I) / (44000 / STICK_GAIN);
  //Hoppel Mod
  if(Parameter_UserParam7 > 75) J9_HI; else J9_LO;
  ...
}}}
In the MK-Tool the Userparameter is assigned one of the Poti's.

<<BR>>

 .
[[http://gallery.mikrokopter.de/main.php/v/uploads/nighflight.jpg.html|{{http://gallery.mikrokopter.de/main.php?g2_view=core.DownloadItem&g2_itemId=15285}}]]

= Nighflight =
<<RCMovieVideo(http://www.rcmovie.net/flvideo/7644.flv)>>

<<RCMovieVideo(http://www.rcmovie.de/flvideo/7696.flv)>>

= Testflights =
<<RCMovieVideo(http://www.rcmovie.de/flvideo/8331.flv)>>

= Links =
 * [[http://www.rbb-ev.de/index.php?option=com_content&task=view&id=343&Itemid=2|German report about RC Car race]]
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