Читать книгу Electronics All-in-One For Dummies - Lowe Doug, Doug Lowe - Страница 51

A light-emitting diode (or LED) is a special type of diode that emits light when current passes through it. You learn about LEDs in Book 2, Chapter 5. Although there are many different types of LEDs available, I suggest you get started by purchasing at least five red diodes. Figure 3-18 shows a typical red LED.

FIGURE 3-18: Light-emitting diodes.