Learning C for Arduino

Chapter 4. Blinking with Operations and Loops

If I say a circle looks like a rectangle, would you oppose my statement? Yes, you would. Why? Because a circle is a round-shaped object, whereas the rectangle has four angles. In your brain, you have images of both circles and rectangles. You just compared a circle to a rectangle and opposed my statement. This is how logic works. We compare with something and decide if our statement is true or false. In this chapter, we are going to learn about logical operations with Arduino IDE. We will also learn about loops.

Expression in C

Before we learn about logical operations, let's look at a few expressions in C programming. Suppose you need to identify the larger of two numbers (100 and 200). You will definitely ...