Oscilloscopes

http://www.seeedstudio.com/forum/viewtopic.php?f=12&t=1793 BenF firmware
http://scacinto.wordpress.com/2011/04/25/dso-nano-v2-unboxing-upgrading-...
http://www.youtube.com/watch?v=UrviMg-ALyo
http://dfu-util.gnumonks.org/ v ersion 0.6

http://www.doctronics.co.uk/scope.htm

http://thecustomgeek.com/2011/09/28/the-dso-nano-v2-pocket-oscilloscope-... DSO Nano
http://www.youtube.com/user/thewii552/videos?query=dso+nano thewii552 tutorials

http://codeandlife.com/2012/05/16/worlds-simplest-logic-analyzer-for-5/ DIY Logic analyser
http://hackaday.com/tag/logic-analyzer/
http://gadgetfactory.net/logicsniffer/ open source logic sniffer
http://dangerousprototypes.com/docs/Open_Bench_Logic_Sniffer Tutorial
http://cwhatidid.com/view/?t=An%20affordable%20Logic%20Analyzer%20for%20...

http://hardware.slashdot.org/story/12/05/02/1557228/sigrok-an-open-sourc... open source logic analyser
http://cwhatidid.com/view/?t=An%20affordable%20Logic%20Analyzer%20for%20...

http://www.hp9845.net/9845/tutorials/analyzer/index.html

http://www.doctronics.co.uk/scope.htm

http://www.tek.com/learning/oscilloscope-tutorial/

http://www.ece.vt.edu/cel/help/scope-tutorial.html

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=10&ved=0CII...

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&ved=0CHQQ...

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=24&ved=0CFo...

debouncing
http://www.ganssle.com/debouncing.htm