Author
John Mars
Code, demos, and project descriptions are available for this project at the Github Repo: https://github.com/marsman12019/IDeATePhysCompProject03-Cardboard
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Here’s the example I shared in class for using OSC with the Photons. It’s also available as a Gist on Github.
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#include "simple-OSC/simple-OSC.h" // create OSC object UDP osc; // set IP addresses and ports for I/O IPAddress outIp(128, 237, 246, 8); unsigned int outPort = 9000; unsigned int inPort = 3000; // creat named variables for pins int leftMotorPin = D1; int rightMotorPin = D0; int ledPin = D7; // runs once at the beginning of the program void setup() { // start serial & OSC Serial.begin(115200); osc.begin(inPort); pinMode(leftMotorPin, OUTPUT); pinMode(rightMotorPin, OUTPUT); pinMode(ledPin, OUTPUT); // You can view Serial.print() commands sent from the Photon via your computer's console (while it's plugged in to the computer). // Do `ls /dev/tty.usb*` in terminal to find the address of the Photon, // then do `screen ADDRESS BAUD` to make a serial monitor. // For example, if my Photon is "/dev/tty.usbmodem331", I'd do 'screen /dev/tty.usbmodem331 115200'. // while waiting for connection to be set up while (!WiFi.ready()) { // wait and print to console delay(500); Serial.print("."); } // print to console when connection is started Serial.println(""); Serial.println("WiFi connected"); // get Photon's IP:PORT and print it to console IPAddress ip = WiFi.localIP(); Serial.print(F("ip : ")); Serial.print(ip); Serial.print(F(" : ")); Serial.println(inPort); } // continuously runs throughout the life of the program, after setup() void loop() { // RECEIVE === // create message object OSCMessage inMessage; // if the incoming OSC packet is larger than 0 bytes int size = 0; size = osc.parsePacket(); if (size > 0) { // copy each byte from the incoming packet to the message object while (size > 0) { inMessage.fill(osc.read()); size--; } // if the message can be parsed if (inMessage.parse()) { Serial.println("Message Received"); // route it to a callback function inMessage.route("/A", leftCallback); inMessage.route("/B", rightCallback); } } // SEND === // To test sending messages, you can use `nc -ul PORT` in terminal to listen to incoming messages on localhost. // For example, if outIp is my computer's IP address (128.237.246.8), and outPort is the port I'm sending to (9000), // then I'd run `nc -ul 9000` in terminal, and send a message from the Photon using the following example. // // For TouchOSC, you'd want to send the appropriate route to your mobile device's IP. Follow instructions [here](http://hexler.net/docs/touchosc) // create an outgoing message object OSCMessage outMessage("/sensor"); // add parameters to the object outMessage.addString("test"); outMessage.addFloat(-3.14); outMessage.addInt(-1); // send the object outMessage.send(osc, outIp, outPort); } // callbacks are run asynchronously from the main loop() void leftCallback(OSCMessage &inMessage) { Serial.println("LEFT CALLBACK"); if (inMessage.getInt(0) == 0) { Serial.println("LEFT OFF"); digitalWrite(leftMotorPin, LOW); digitalWrite(ledPin, LOW); } else { Serial.println("LEFT ON"); digitalWrite(leftMotorPin, HIGH); digitalWrite(ledPin, HIGH); } } void rightCallback(OSCMessage &inMessage) { Serial.println("RIGHT CALLBACK"); Serial.println(inMessage.getInt(0)); if (inMessage.getInt(0) == 0) { Serial.println("RIGHT OFF"); digitalWrite(rightMotorPin, LOW); digitalWrite(ledPin, LOW); } else { Serial.println("RIGHT ON"); digitalWrite(rightMotorPin, HIGH); digitalWrite(ledPin, HIGH); } } |
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