Datasheet

Your Shield-Bot’s Brain • Chapter 1
Robotics with the BOE Shield-Bot • 27
a = 42;
c = 'm';
root2 = sqrt(2.0);
}
void loop()
{
Serial.println(a);
Serial.println(c);
Serial.println(root2);
delay(1000);
}
Your Turn – More Data Types
There are lots more data types than just int, char, float, and byte.
 Open the Arduino Language Reference, and check out the Data Types list.
 Follow the
float link and learn more about this data type.
 The
long data type will be used in a later chapter; open both the long
and
int sections. How are they similar? How are they different?
Activity 4: Solve Math Problems
Arithmetic operators are useful for doing calculations in your sketch. In this activity, we’ll
focus on the basics: assignment (
=), addition (+), subtraction (-), multiplication (*),
division (
/), and modulus (%, the remainder of a division calculation).
 Open up the Arduino Language Reference, and take a look at the list of Arithmetic
Operators.
The next example sketch, SimpleMath, adds the variables
a and b together and stores the
result in
c. It also displays the result in the Serial Monitor.
Notice that
c is now declared as an int, not a char variable type. Another point, int c =
a + b
uses the assignment operator (=) to copy the result of the addition operation that
adds
a to b. The next screen capture shows the expected result of 89 + 42 = 131 in the Serial
Monitor.