Page 157 - Hacking Roomba

138 Part II — Fun Things to Do

Or you can use a file explorer to drop the ZIP file into the libraries directory and double-click
it to unzip the contents.
When Processing is restarted, you should see roombacomm as a library choice when selecting
Sketch ➪ Import Library (see Figure 7-3).

FIGURE 7-3: RoombaComm installed successfully as a Processing library

When you choose a library (like roombacomm) from Sketch ➪ Import Library, Processing
inserts the relevant Java import lines into the sketch. You don’t have to import libraries this
way, but it makes things easier if you don’t know the exact name of the classes in the library
you’re importing.

A First RoombaComm Processing Sketch

A good start might be the SimpleTest.java program seen before. Listing 7-3 shows a complete
Processing program to test Roomba. It’s a slightly abbreviated version of the regular SimpleTest
program, but it accomplishes the same purpose. With Listing 7-3 input into Processing, click
the Run button. Processing will compile and launch your sketch. If all’s well, the robot will
beep and move around. Your sketch will print out its messages to the black status panel below
your sketch. If there are errors, the errors will be in the status panel.