This Codebox shows you how to save sensor data to a Google Spreadsheet. Although this example uses the simple photo resistor sensor described in Chapter 11 of Getting Started with Processing, you can use this technique for type of sensor. For example, you could log data from a Parallax GPS receiver module into Google Spreadsheets, and then create a Google map of where you’ve been.
This Codebox explores how to use a web server to collect sensor data from a Processing sketch. As an example, we’ll use OpenCV to periodically detect and report number of faces that appear in your webcam’s field of view. You might use something like this at a conference or art show to see how many people are interested in a particular session or exhibit. Using this data feed, you might then create a mobile app that would show you where the most people are at a conference at any given time.
Five inspirational Processing resources that will help you go further with your programming.
Google’s Autocomplete can be hilarious, tragic, or deeply indicative of the human condition. Often, it’s all of these at once. This sketch lets you explore the zeitgeist of any phrase by pulling 260 related suggestions from Autocomplete and presenting them in a “Star Wars” scroll.
To get into the spirit of Halloween, this Codebox shows you how to use OpenCV (a computer vision library) to detect faces on your webcam and then remove their heads.
Create a variety of natural looking shapes — ferns, trees, and dragons — using fractals and the controlP5 library.
The last Codebox showed how to use your webcam to replace your mouse with a magic wand (sort of). This issue builds on that example and shows how to create more sophisticated interactions with multiple targets.
