ITP Videos by Jeff Feddersen on Vimeo.
Digital Input and Output
The Fixed Resistor is Necessary!
Ohm Part 2 from ITP_NYU on Vimeo.
Digital input with internal pull-up resistors
Analog Input
Analog Output
Pseudo-analog output:
Tone Output
Servo Control using Pulse Width Modulation
Analog Output: Motor Control
Multiple Inputs or Outputs
Multiplexers
Jeff explains how a multiplexer allows you to connect multiple analog or digital input circuits to a single microcontroller input.
Shift Registers
Jeff and Tom explain how to use shift registers to control multiple digital outputs.
Binary Coded Decimal (BCD) controller
Jeff shows you how to control multiple LEDs on a 7-segment numerical LED display using a Binary Coded Decimal (BCD) controller