Blinking LED: This lesson begins with a description of diodes including light emitting diodes. Then we will finally program a blinking LED both built-in to the Arduino as well has constructing a blinking LED circuit with the microcontroller. The functions used in the C language program will be discussed in detail.
Knowledge Check:
Describe the electrical function of a diode.
Why does a diode need a current limit resistor?
How would you calculate how much current flows in a LED circuit?
What does the pinMode() function do?