Digital and Analog Signals#
TODO

Checkpoint: Digital or Analog Signal#
Consider the following inputs:
A: A button B: A temperature sensor C: A light-level sensor D: A switch
Are the inputs above examples of a digital or an analog signal?
Click here to reveal the solutions.
Solutions:
A: Digital. A button only has two values.
B: Analog. A temperature has more than two values.
C: Analog. A light level sensor has more than two values.
D: Digital. A switch only has two values.