Electronics
From Wiki2
basics
- LED flat section toward ground
- breadboard power bars 1/2 of long side
op amps
on using wall warts in circuit design
http://www.dxing.info/equipment/wall_warts_bryant.dx
sample circuits
http://www.discovercircuits.com/S/solidstate.htm
http://members.vol.at/home.floery/electronix/picnic/documentation.html
http://www.edaboard.com/thread5683.html
http://microcontrollerkits.blogspot.com/2011/11/arduino-microcontroller-control-tcpip.html