An Open Sound Control library for the mbed, created to be compatible with Recotana's OSCClass library (http://recotana.com) 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
example.h
- Committer:
- tobyspark
- Date:
- 2013-07-26
- Revision:
- 1:63b72e393989
- Parent:
- 0:fdea65150534
File content as of revision 1:63b72e393989:
#include "mbed.h" #include "mbedOSC.h" //// ETHERNET // 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; #else 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 ); #endif //// 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: sendMes.setTopAddress("/working..."); osc.sendOsc(&sendMes); } } //// 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 osc.setReceiveMessage(&recMes); // Tell it to begin listening for OSC messages at the port specified (the IP address we know already, it's the mbed's!). osc.begin(mbedListenPort); // 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 http://mbed.org/cookbook/FunctionPointer osc.messageReceivedCallback.attach(&processOSC); //// 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! Net::poll(); // Has the button changed? if (button != buttonLastState) { // If so, lets update the lastState variable and then send an OSC message buttonLastState = button; sendMes.setTopAddress("/mbed"); sendMes.setSubAddress("/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). osc.sendOsc(&sendMes); 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()). } }