There are occasional questions about the availability of Butterfly pins for general I/O. Sometimes folks get nervous when they use Port D and notice the LCD elements dancing, or they may use Port B to light some LEDs and can't figure out why using the joystick makes their LEDs blink. The information is out there, but not very accessible, so I've put together a 12 page illustrated dissertation on the topic.
Please tell me about the typos and stupidos.
1/1/07 Via Toni Geissler -
Under "Voltage Reader" the pin number is missing, l think it is "Port F pin 1", that means
the text should read ....before beeing fed to Port F pin 1, which is normally used as ....