Fun with Arduino

Need a simple/small/cheap microprocessor with loads of peripherals (I²C) that is easy to tinker with? Arduino's products might be something for you. The Arduino Uno sports a atmega328 (Atmel 8-bit AVR RISC-based microcontroller) with 1K EEPROM, 2K SRAM and 32 KB Flash Memory.

Many devices can be connected trough I²C. Devices such as 3D gyros, temperature-, humidity-, brightness sensors, external storage as well as a gps receivers.

(c) ardunio.cc

Tools:

• Arduino (official editor/compiler)
• Programming visually: http://minibloq.org/
• Eclipse Plug-in: http://avr-eclipse.sourceforge.net/wiki/index.php/Plugin_Download
• CrossWorks for AVR, IDE: http://www.rowley.co.uk/
• Design circuit boards: http://fritzing.org/

Documentation:

• Arduino 
• Foundations 
• Extending and Developing Arduino
• Examples 
• Links
• Playground Wiki 

subversion and xxdiff

xxdiff is an X11 application for displaying differences of two files.

Installation on Debian:
$ sudo apt-get install xxdiff-scripts

Example usage with subversion (if you run the above command and are on X11 with xxdiff installed and in your $PATH, xxdiff should start, else console output should appear):

#!/usr/bin/env bash
# $Id: svndiff_gui.sh 174 2011-05-05 19:13:55Z wus $

# use xxdiff when available and on X11

if [[ -n "$DISPLAY" && -x `which xxdiff` ]]; then
 svn stat
 read -p "Graphical diff? [Y/n]: " proceed
 if [[ "$proceed" == "" || "$proceed" == "y" || "$proceed" == "Y" ]]; then
  xx-svn-diff $@
  exit $?
 fi
fi

svn diff $@