MTK Android

HOWTO mount an airport extreme attached disk

[ ]# sudo mount.cifs //IP_ADDRESS/Data -o password=PASSWORD,sec=ntlm,uid=LOCAL_USERNAME /media/airport

[ ]# sudo mount -t cifs //10.0.1.1/DATA -o username=USERNAME,password=PASSWORD /media/airport

[Book] Beginning Google Glass Development

Beginning Google Glass Development (PDF)
Jeff Tang

368 Pages

Publication Date: June 24, 2014

ISBN13: 978-1-4302-6788-1

AHRS - Attitude and Heading Reference System

Attitude and heading reference system (AHRS) consists of sensors on three axes that provide attitude information for aircraft, including heading, pitch and yaw.

AHRS consist of either solid-state or microelectromechanical systems (MEMS) gyroscopes, accelerometers and magnetometers on all three axes.

The key difference between an inertial measurement unit (IMU) and an AHRS is the addition of an on-board processing system in an AHRS which provides solved attitude and heading solutions versus an IMU which just delivers sensor data to an additional device that solves the attitude solution.

Robotino

Robotino is a mobile robot system from Festo Didactic. Robotino provides all the sensors, actuators and software interfaces you would expect from a modern state of the art mobile robot system. Even better, Robotino is a 100% open-source robot. SVN

Robotino is support for the Robot Operating System (ROS).

Robotino is programmable in various languages including C, C++, Java, .Net, Matlab, LabVIEW and Microsoft Robotics Developer Studio.

Autonomous Aerial Robot

PIXHAWK

The project is developing robotics framework for micro air vehicles.

How to disable start up sound in MacBook Air

It has puzzled me for a long time, especially at midnight.

$ sudo nvram --help

nvram: (usage: no such option as --)

nvram [-x] [-p] [-f filename] [-d name] [-c] name[=value] ...

-x                       use XML format for printing or reading variables

                          (must appear before -p or -f)

-p                       print all firmware variables

-f                        set firmware variables from a text file

-d                       delete the named variable

-c                       delete all variables

name=value      set named variable

name                 print variable

Note that arguments and options are executed in order.

$ sudo nvram SystemAudioVolume=%80

$ sudo nvram -p | grep SystemAudioVolume

SystemAudioVolume %80