Open-BLDC
Open-BLDC Project SiteOpen-BLDC stands for Open Source Brush Less DC Motor Controller.

The goal of the project is to create a completely Open-Source BrushLess Direct Current moto controller also known as Electronic Speed Controller (ESC). This means in our case that the software is released under GPL, version 3 or later and the hardware is released underCreative Commons Attribution-Share Alike 3.0 License.


Open-BLDC Strip V0.1
News
Sep 4th, 2012: New Open-BLDC hardawe the StripApr 18th, 2011: Released CLogic hardware files.Jan 7th, 2011: Projectmovie Open-BLDC interview released.Dec 27th-30th, 2010: We were at the 27C3.Nov 27th, 2010: Implemented active freewheeling.Nov 15th, 2010: Implemented regenerative braking.Sep 16th, 2010: Hardware based closed loop controlAug 05th, 2010: New Open-BLDC v0.3 hardwareJun 29th, 2010: Created GitHub Open-BLDC organization.Aug 09th, 2009: first v0.1 board fully assembledAug 08th, 2009: first v0.1 board is aliveAug 05th, 2009: v0.1 boards arrived!Jun 13th, 2009: Created a prototype using all SMD parts and phase current sensing.Mai 06th, 2009: Maiden run of commutation detection on the bread board prototype.Apr 27th, 2009: Maiden run of a motor using a bread board prototype.Mar 24th, 2009: IR2110 based power stage circuitMar 20th, 2009: Breadboard adaptersMar 15th, 2009 Selecting parts for Open-BLDC power stage prototypeFeb 26th, 2009 How to build arm gnu gcc toolchain for Mac OS XFeb 16th, 2009 Open-BLDC MKDec 12th, 2008 First circuit tests for Open-BLDC on GitHub
Current status
Still in planning and testing phase.
First tests with Mikrokopter BL-CTRLs done.
First approaches to circuits and board designs based on Atmega microcontrollers were done.
Version 0.3 of Open-BLDC is successfully and reliably controlling a brushless motor (associated blog post)
Clogic board that replaces the logic in Castle motor controllers is up and running
Betatesting of Strip low cost motor controller for small multicopters
For more information visit Twisted World of Esden blog.
Or join us on IRC #open-bldc on freenode
Some interesting links
How to contact the developers and other users
Frequently Asked Questions
Some information about Open-BLDC V0.1 hardware
Some information about Open-BLDC V0.2 hardware
Some information about Open-BLDC V0.3 hardware
Some information about the Open-BLDC CLogic hardware
Some information about the Open-BLDC Strip hardware
Developers Section: Repository of Wiki Pages Relevant to Developing Open-BLDC
Users Section
Current featureset
Mounts on off the shelf Castle Creations power stages which allows:
From 2C up to 12C LiPo cell support
Up to 200A constant power output depending on the power stage used
Detachable/Interchangeable power-stage
Hardware support for Fieldvector control (software pending)
Hardware and software support for hardware based (comparator) BEMF control
Regenerative braking (battery push back active braking)
High speed (500kB/s) UART (TTL level Serial) based PC control and data aquisition interface
Planned features
Active freewheeling
Adjustable timings
Different interfaces:
PPM
I2C
CAN
Fieldvector control
Speed control
Torque control
Hall sensor based control
Acknowledgments
Markus Bechtold for reviewing the PCB designs and many useful tips!
Benjamin Glass for finding problems in the circuitry!
All the developers from the UAVP-NG project for good ideas and encouragement!
Richard Querin for the wonderful logo!





http://open-bldc.org/wiki/Open-BLDC