Revision as of 16:56, 2 June 2013

Quadrotor

Description

A quadrotor, also called a quadrotor helicopter or quadcopter, is a multicopter that is lifted and propelled by four rotors.

Upcoming meetups

Workshop 05/06/2013?, by ododos

TODO

• Upload UDP client - server on github
• Incorporate joystick read functionality on client
• Activate checksum in UDP
• Elaborate and decide on control message format and size (eg int, byte array, string :) etc)

Log

Workshop 29/05/2013, acinonyx

• Moved forward on sockets with a basic client - server example made and presented by acynonix
• Decided to use IP/UDP stack for control communication
• Made network latency tests that gave an average of 16ms over 3 hops in our lan
• Decided to abolish the, now redundant, identifying 2 bits used for serial communication

Workshop net-pre-meetup 27/05/2013, skmp

• Explained some stuff in the code
• That was all, really

Workshop 22/05/2013, etc

• Decided tag for mailing list -> [hackopter]
• Played a little with qt-creator and C
• connect XBOX joystick on linux
• Decided on logo

Workshop 17/05/2013, mkir

• Decided tag for mailing list -> [hackopter]
• Played a little more with github
• Attempt to connect XBOX joystick on linux
• Saw new revisions of hackopter logo! Nice! ;)

Workshop 08/05/2013, petros.kon

• Project Name set : Hackopter
• Team name (guess) : Hackopter-team
• Team members registered at hackerspace general discussion mailing list
• Primer on github git and git uis

Workshop 01/05/2013, skmp

• +3 new team-members
• Talked about general direction and organisation stuff
  • We'll focus a bit on the tooling (git/github/mono/gcc) so that everyone is familiar before moving on
  • No name chosen still
  • Round-robin event coordinator. Next one is petros.kon

Suprise event @ nasa space days 21/04/2013

• skmp -> we now have xbox360 + wii nunchuck for experimentation
• Hacked together C# control ui (slimDX + serial IO)
• Hacked together arduino control software (sucks badly)
• A few (very) unstable flight tests !

Workshop 17/04/2013

• Flashed firmware on KKmulticontroller v5.5 board
• Calibrated ESCs
• Completed setup procedure of multicopter
• (click on the title for the detailed event page)

Workshop 03/04/2013

• Resolved ESC/BLDC soldering issues by drilling new holes (the quad is now slightly smaller, non destrutive change)
• Finished assembly

13/03/2013

• X525 arrived at hackerspace.gr
• Checked motors
• Soldered motor contacts
• Assembled main body

Team (sorted by nickname)

• Acinonyx
• etc
• ododos
• mkir
• petros.kon
• skmp

• (edit this and add yourself *AND KEEP IT SORTED*)

TODO List

Mods

• Add more nuts on suspension legs
• Add rubber bumpers on suspension legs
• Use more washers

Wanted stuff

• PSU that can handle the load

Resources

Firmware

• XCopter XXControl KR v2.9

Documentation

• Bundled documentation

Photos

• Unpacking/basic assembly
• Meetups
  • 03/04/2013

Spare Hardware

Whiteboard

Weight target is 500g, Payload 250g, Lift 250g
* Arduino 27g
* esc 22g
* motor 38g (spec)
* propeller 7g

27+4*(22+38+7)= 295? (268 for motor + ESC)


~30/01/2013
* Link -> WIFI
* no gps (http://www.ebay.com/sch/i.html?_nkw=pci+5s&_sacat=0 if we finally need one)
* Beaglebone/linux + arduino
* motor load ~ 7 amps @ ~ 250g lift
* safety/testing -> glasses, net
* regular workshop schedule -> every wednesday 7-9
* next meetup -> 6/2
* -> smaller quadcopter 
* budget -> ?

~Tasks
* Beaglebone linux distribution, rt-linux & related stuff
* Investigate existing open source DoF/quadcopter platforms
* Investigate propeller mounts and/or motors 
* Look at quadcopter kit prices

~Ideas
* Buy quadcopter kit (cheaper ?) to get us started
* Crazyflie Nano Quadcopter Kit: http://www.seeedstudio.com/depot/preorder-crazyflie-nano-quadcopter-kit-10dof-with-crazyradio-bccfk02a-p-1365.html?cPath=170_172