Electronics
Elektronik Deutsch
mikrocontroller.net: Microcontroller programming guides
AVR
mikrocontroller.net AVR Tutorial
Fuses
ISP Pins
AVR-GCC-Tutorial
AVR-LIBC Manual
AVR Projekte
Sparkfun
Neuhold
Reichelt
gEDA gschem and pcb tutorials
gEDA and SPICE howto
gEDA footprints
Zener Diode (Formel)
Basic Car Audio Electronics
Powertip PG-240128-A parallel drived, white on blue, graphical 240x128 pixels LCD, with a Toshiba T6963c controller, and LED backlighted
articles/MAX3232CPE/Howto_RS232_TTL_MAX3232.pdf