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87 lines
2.2 KiB
Plaintext
87 lines
2.2 KiB
Plaintext
/**
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* Many Serial Ports
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*
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* Read data from the multiple Serial Ports
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*/
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import processing.serial.*;
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Serial[] myPorts = new Serial[2]; // Create a list of objects from Serial class
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int[] dataIn = new int[2]; // a list to hold data from the serial ports
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void setup() {
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size(400, 300);
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// print a list of the serial ports:
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printArray(Serial.list());
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// On my machine, the first and third ports in the list
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// were the serial ports that my microcontrollers were
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// attached to.
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// Open whatever ports ares the ones you're using.
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// get the ports' names:
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String portOne = Serial.list()[0];
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String portTwo = Serial.list()[2];
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// open the ports:
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myPorts[0] = new Serial(this, portOne, 9600);
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myPorts[1] = new Serial(this, portTwo, 9600);
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}
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void draw() {
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// clear the screen:
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background(0);
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// use the latest byte from port 0 for the first circle
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fill(dataIn[0]);
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ellipse(width/3, height/2, 40, 40);
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// use the latest byte from port 1 for the second circle
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fill(dataIn[1]);
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ellipse(2*width/3, height/2, 40, 40);
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}
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/**
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* When SerialEvent is generated, it'll also give you
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* the port that generated it. Check that against a list
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* of the ports you know you opened to find out where
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* the data came from
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*/
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void serialEvent(Serial thisPort) {
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// variable to hold the number of the port:
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int portNumber = -1;
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// iterate over the list of ports opened, and match the
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// one that generated this event:
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for (int p = 0; p < myPorts.length; p++) {
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if (thisPort == myPorts[p]) {
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portNumber = p;
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}
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}
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// read a byte from the port:
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int inByte = thisPort.read();
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// put it in the list that holds the latest data from each port:
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dataIn[portNumber] = inByte;
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// tell us who sent what:
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println("Got " + inByte + " from serial port " + portNumber);
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}
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/*
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The following Wiring/Arduino code runs on both microcontrollers that
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were used to send data to this sketch:
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void setup()
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{
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// start serial port at 9600 bps:
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Serial.begin(9600);
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}
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void loop() {
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// read analog input, divide by 4 to make the range 0-255:
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int analogValue = analogRead(0)/4;
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Serial.write(analogValue);
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// pause for 10 milliseconds:
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delay(10);
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}
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*/
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