Electronics fundamentals
Charlie Cullen · Focal Press eBooks · 2020
This chapter begins with a brief introduction to the scales, symbols and equations used in electronics. The chapter continues by addressing the fundamental concepts of electronics – current, voltage and resistance. The ideas of current being the movement of electrons and resistance being the means of slowing this movement are discussed, noting that the concept of voltage being the potential for electrons to move can take time to fully understand. The tutorial introduces the Autodesk Tinkercad application for circuit simulation. The project circuit uses an Arduino, basic electronic components (resistor with LED) and breadboard to light an LED powered by the Arduino – this also helps to introduce the project structure employed throughout the book.