An Open Sound Control library for the mbed, created to be compatible with Recotana's OSCClass library ( for the Arduino with Ethernet shield. It also uses parts of the OSC Transceiver(Sender/Receiver) code by xshige written by: Alvaro Cassinelli, October 2011 tweaked by: Toby Harris / *spark audio-visual, March 2012

Dependencies:   NetServices mbed



File content as of revision 11:853a9e887023:

#include "mbed.h"
#include "mbedOSC.h"


// Ethernet can be created with *either* an address assigned by DHCP or a static IP address. Uncomment the define line for DHCP
//#define DHCP
#ifdef DHCP
EthernetNetIf eth;
EthernetNetIf eth(
    IpAddr(10,0,0,2), //IP Address
    IpAddr(255,255,255,0), //Network Mask
    IpAddr(10,0,0,1), //Gateway
    IpAddr(10,0,0,1)  //DNS

//// OSC

// The object to do the work of sending and receiving
OSCClass osc;

// The message objects to send and receive with
OSCMessage recMes;
OSCMessage sendMes;

// Setting - The port we're listening to on the mbed for OSC messages
int  mbedListenPort  = 10000;

// Setting - The address and port we're going to send to, from the mbed
uint8_t destIp[]  = { 10, 0, 0, 1};
int  destPort = 12000;

//// mbed input

DigitalIn button(p21);
bool buttonLastState;

//// Our messageReceivedCallback function
void processOSC() {

    // If this function has been called, the OSC message just received will have been parsed into our recMes OSCMessage object
    // Note we can access recMes here, outside of the main loop, as we created it as a global variable.

    // TASK: If this message one we want, do something about it.
    // In this example we're listening for messages with a top address of "mbed".
    // Note the strcmp function returns 0 if identical, so !strcmp is true if the two strings are the same
    if ( !strcmp( recMes.getAddress(0) , "mbed" ) ) {
        printf("OSC Message received addressed to mbed \r\n");
        if ( !strcmp( recMes.getAddress(1) , "test1" ) )
            printf("Received subAddress= test1 \r\n");

        // Send some osc message:

////  M A I N
int main() {

    //// TASK: Set up the Ethernet port
    printf("Setting up ethernet...\r\n");
    EthernetErr ethErr = eth.setup();
    if (ethErr) {
        printf("Ethernet Failed to setup. Error: %d\r\n", ethErr);
        return -1;
    printf("Ethernet OK\r\n");

    //// TASK: Set up OSC message sending

    // In the OSC message container we've made for send messages, set where we want it to go:
    sendMes.setIp( destIp );
    sendMes.setPort( destPort );

    //// TASK: Set up OSC message receiving

    // In the OSC send/receive object...
    // Set the OSC message container for it to parse received messages into

    // Tell it to begin listening for OSC messages at the port specified (the IP address we know already, it's the mbed's!).

    // Rather than constantly checking to see whether there are new messages waiting, the object can call some code of ours to run when a message is received.
    // This line does that, attaching a callback function we've written before getting to this point, in this case it's called processOSC
    // For more info how this works, see

    //// TASK: Prime button change detection
    buttonLastState = button;

    //// TASK: GO!

    // We've finished setting up, now loop this forever...
    while (true) {
        // This polls the network connection for new activity, without keeping on calling this you won't receive any OSC!

        // Has the button changed?
        if (button != buttonLastState) {
            // If so, lets update the lastState variable and then send an OSC message
            buttonLastState = button;
            sendMes.setArgs("i", (long)button); // The payload will be the button state as an integer, ie. 0 or 1. We need to cast to 'long' for ints (and 'double' for floats).// The payload will be the button state as an integer, ie. 0 or 1. We need to cast to 'long' for ints (and 'double' for floats).
            printf("Sent OSC message /mbed/button \r\n");

        // ... Do whatever needs to be done by your mbed otherwise. If an OSC message is received, your messageReceivedCallback will run (in this case, processOSC()).


// oscP5sendreceive by andreas schlegel
// example shows how to send and receive osc messages.
// oscP5 website at

import oscP5.*;
import netP5.*;

OscP5 oscP5;
NetAddress myRemoteLocation;

void setup() {
  // start oscP5, listening for incoming messages at port 12000
  oscP5 = new OscP5(this,12000);

  // myRemoteLocation is a NetAddress. a NetAddress takes 2 parameters,
  // an ip address and a port number. myRemoteLocation is used as parameter in
  // oscP5.send() when sending osc packets to another computer, device,
  // application. usage see below. for testing purposes the listening port
  // and the port of the remote location address are the same, hence you will
  // send messages back to this sketch.
  myRemoteLocation = new NetAddress("",10000);

void draw() {

void mousePressed() {
  // in the following different ways of creating osc messages are shown by example
  OscMessage myMessage = new OscMessage("/mbed/test1");

  myMessage.add(123); // add an int to the osc message

  // send the message
  oscP5.send(myMessage, myRemoteLocation);

// incoming osc message are forwarded to the oscEvent method.
void oscEvent(OscMessage theOscMessage) {
  // print the address pattern and the typetag of the received OscMessage
  print("### received an osc message.");
  print(" addrpattern: "+theOscMessage.addrPattern());
  println(" typetag: "+theOscMessage.typetag());