An overview of analog and digital electronics necessary for carrying out the book's projects
Electronics is the branch of technology and physics concerning the emission and behavior of electrons moving in a conductor, semiconductor, gas, or vacuum. Electronics also deals with the design of electronic circuits and devices. Figure 1.1 shows a diagram of a basic electronic circuit consisting of a power source (the batteries), a resistor, and a light source (a light-emitting diode, or LED):
Figure 1.1 – An example of an electronic circuit
The electrons flow from the battery's negative (black) terminal through the circuit passing through the LED illuminating it. Don't worry if you don't understand this circuit and its components yet. We will review these in the next paragraphs, and we will use them in other chapters. Analog electronics are electronic circuits that provide and process continuous variable voltage signals, for example...