Heartbeat Sensor Projects with PulseSensor: Prototyping Devices with Biofeedback by Yury Gitman & Joel Murphy

Author:Yury Gitman & Joel Murphy
Language: eng
Format: epub
ISBN: 9781484293256
Publisher: Apress

The program will continue to list the available ports and scan the adjacent radio buttons for selection until you choose one of the ports to connect to. When you select a serial port and the program connects to it, the variable serialPortFound is set to “true,” which opens up the draw() to gather data from Arduino UNO and display it in the program window. This section of the code is designed to refresh the program window at the frameRate that was defined in setup().

The really cool thing about Processing that makes relatively simple programs like our Visualizer and even simpler sketches fun and dynamic is that they make it very easy to keep track of position and input from the computer mouse or trackpad, as well as any keyboard input. Processing makes a handy function called mousePressed() that is called any time there is input from the mouse buttons. That’s cool! When the program just starts up and asks for a serial port selection, this next section is waiting for you to click the main selection button on your mouse, usually the right one. The first thing it does is run a for() loop to check and see if the position of the mouse click happened over any of the radio buttons. The pressRadio() function will return “true” if the click happened over it:void mousePressed(){

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