ESC speed control

ODrive
Encoder feedback for arbitrarily precise movements. https://www.youtube.com/watch?v=p4ltHDpxrbI video review https://hackaday.io/project/11583-odrive-high-performance-motor-control, https://github.com/madcowswe/ODriveHardware/tree/master/v3 ,  https://github.com/madcowswe   This project is all about accuratly driving brushless motors, for cheap. The aim is to make it possible to use inexpensive brushless motors in high performance robotics projects. https://odriverobotics.com/

github
https://github.com/NiklasFauth/hoverboard-firmware-hack

osmc
http://osmccontroller.wikia.com/wiki/Open_source_motor_controller_Wikia opensource esc controller for ground robots.

Vedder esc
http://vedder.se/2015/01/vesc-open-source-esc/ Bldc clone. https://github.com/vedderb/bldc Forty forks on github. Used for skateboard dc powered motion. C SOURCE CODE SimonK in contrast is a compiled hex file. Uses http://chibios.org/dokuwiki/doku.php RToS. Use this code on the hardware from OsmcRobotics.

Sapog
https://kb.zubax.com/display/MAINKB/Sapog+BLDC+motor+control+solution from px4
 * https://diydrones.com/profiles/blogs/px4-sapog-and-friends
 * https://github.com/PX4/sapog and has an electromagnetic pickup module. Electromagnet.

offthegridsun
http://offthegridsun.com/Brushless-Motor/BLDC-Brushless-Motor-Controller-200w-To-1000W for $99

turnigy
https://github.com/sim-/tgy

Github
L298N https://github.com/ovaltineo/SegwayClone/blob/master/Motors.ino code.
 * https://github.com/rene-dev/stmbl stmbl is an open source servo drive designed for Retrofitting CNC machines and Robots. It supports Industrial AC and DC servos with up to 320V and 1kW.
 * https://github.com/ovaltineo/SegwayClone Segway clone. Added support for Osmc robotics without MOB (Modular OSMC Brain). Supports http://www.instructables.com/id/Motor-Driver-BTS7960-43A/?ALLSTEPS BTS7960 motor driver.

Opensource ESC

 * http://autoquad.org, http://autoquad.org/software-downloads/?did=16 code.google.com shutting down, see migration to github. Search github+esc32    https://github.com/bn999/esc32
 * http://www.olliw.eu/2013/mbgc/ esc, ekf discussion, brushless controller mini http://fpv-community.de/showthread.php?29144-Mini-Brushless-Gimbal-Elektronik, http://www.rcgroups.com/forums/showthread.php?t=1966607
 * http://witespyquad.gostorego.com/rtf-v5-mosfet-edition-brushless-gimbal-controller-with-imu.html
 * https://github.com/bluerobotics/blueesc/ ,https://www.bluerobotics.com/store/electronics/besc-30-r1/ The BlueESC is a simple, open-source electronic speed controller for three-phase brushless motors. It is designed to run the SimonK firmware on an Atmega8 microcontroller. Derived from https://github.com/sim-/tgy,  https://code.google.com/p/wii-esc/

Tgy ESC
https://github.com/sim-/tgy  247 forks

Servo
http://ricardo-dias.com/2012/09/16/modifying-servos-for-continuing-rotation/ Mod servos for continues rotation.

Motor control
https://github.com/ytai/ioio/wiki/Motor-control The Motor Control API, which was added to the IOIO library in version 5.00 makes it easy to control a large variety of such setups with very high accuracy and speed. What it does essentially is generate digital waveforms of various kinds, which correspond to different kinds of actuators.

ESC settings
http://diydrones.com/group/pixhawk/forum/topics/the-truth-about-pixhawk-and-some-escs-with-low-kv-motors Match the prop, low voltage motors with Esc settings. Use opto couplers to prevent ground loops and current spikes.

SimonK pre-flashed
http://diydrones.com/profiles/blogs/hobbyking-introduces-simonk-timecop-designed-afroesc

http://eastbay-rc.blogspot.com/2013/07/afro-esc-simonktimecophobbyking.html

http://www.hobbyking.com/hobbyking/store/__39708__Afro_ESC_30Amp_Multi_rotor_Motor_Speed_Controller_SimonK_Firmware_.html

filter
Remove the low pass filter on the ESC, allowing higher P(proportional) control values, which stabilizes the quad in wind gusts.
 * http://www.diydrones.com/profiles/blogs/zippy-ac2-with-low-pass-filter-removed-from-escs
 * https://github.com/sim-/tgy
 * http://www.rcgroups.com/forums/showthread.php?t=1513678 ESC firmware flashing
 * http://diydrones.com/profiles/blogs/autoquad-esc32-v1r5
 * http://diydrones.com/forum/topics/flashing-3dr-escs-or-rc-timer-escs-with-much-better-firmware?commentId=705844%3AComment%3A853374

http://code.google.com/p/autoquad/wiki/esc_common Standard ESC not meant for quad control but for aircraft.

http://wiki.openpilot.org/display/Doc/Flashing+Instructions

http://www.rcgroups.com/forums/showthread.php?t=1513678

Mikrokopter
see mikrokopter BLCD

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

http://www.diydrones.com/profiles/blogs/open-source-esc-is-there-a-potential-community

http://www.diydrones.com/profiles/blogs/open-source-esc-is-there-a-potential-community

esc2
http://autoquad.org/esc32/

http://forums.openpilot.org/forum/24-esc-development/

rc hacking
RC HACKING

http://www.rchacker.com/diy/simonk-esc-firmware-flashing

h bridge
http://www.instructables.com/id/Arduino-Modules-L298N-Dual-H-Bridge-Motor-Controll/

http://www.pyroelectro.com/tutorials/h_bridge_4_transistor/parts.html uses TIP147, 125watt.

Links

 * http://diydrones.com/forum/topics/worlds-best-esc-making-it-better Modding ESC, rust prevention spray on paint electrical insolation , bullet removal etc by poster Forrest Frantz.
 * http://www.rcgroups.com/forums/showthread.php?t=157193  links to links on brushless gimbal etc.