Electronics 101
As mentioned, electronics is one of the most important things to understand if you want to get into hardware hacking. You might be able to catch some of the low-hanging vulnerabilities without an understanding of electronics; however, to be good at it, you will need to understand what is happening on the device and how a given component can be exploited. In this section, we will be looking at some of the foundational concepts in electronics, which will help you gain more confidence and understanding, once you start looking into embedded device internals.
This may look absolutely basic to you; however, think of this section as a refresher to what you are about to see in the later sections, and in real life, as you start working with embedded devices.
Resistor
Resistors are electronic components, which offer resistance against the current flow, or speaking at a deeper level, against the electrons' flow. Resistors, denoted by R, are passive components, which means that they don...