For an electronics hobbyist, knowing how to do PCB design is a must. Building prototypes on breadboards or with wire-wrap just doesn't cut it, once you reach a certain point. Then, a PCB board needs to For an electronics hobbyist, knowing how to do PCB design is a must. Building prototypes on breadboards or with wire-wrap just doesn't cut it, once you reach a certain point. Then, a PCB board needs to be made specifically for your project. The previous tutorial Homemade PCB (Etching) showed you a quick, simple, dirty and easy way to make your own PCB. This tutorial will expand further and show you how to make a 2 layer (top and bottom).
In PCB Design for hobbyists, 1 layer PCB's are usually enough to do the trick. However, when you evolve and start building more complex circuits you will need a second layer (or even more!) so that all the electronics in your project can be connected together.
