CHAPTER 4
Editing Schematics
In Chapter 2, we very quickly built the schematic for a simple LED flasher using a 555 timer. In this chapter, after some general explanation of the Schematic Editor, we will start developing a second project, a sound-level meter that includes a small amplifier and 10 LEDs to indicate the level of sound. This project will be continued in Chapter 5 when we come to look at laying out PCBs in more detail.
Because you are going to be experimenting with various editor commands to see how things work, it is probably a good idea to create a new “play” project to which you can add a new schematic for experimenting with.
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