Hi, I'm Electro — an electronics hobbyist and maker documenting hands-on DIY builds with Arduino, ESP32, and IoT projects. Every guide on this blog is based on projects I've actually built, wired, and debugged myself — including the mistakes along the way. My goal is simple: clear, honest, step-by-step tutorials that actually work, without the fluff.
Currents, voltages and resistances can often be very large or very small. Thus multiples and sub-multiples of units are often used, as stated in Chapter 1. The most
common ones, with an example of each, are listed in Table 2.1.