# Example connection with MaxMSP Once you subscribe to the OSC module, the tab is enabled in BCI. The following example demonstrates a connection of EMOTIV BCI with MaxMSP**,** which is a visual programming language for music and multimedia. 1. Connect a simulated device (create one on EMOTIV Launcher if you don't have. See [Creating a virtual brainwear](https://emotiv.gitbook.io/emotiv-launcher/devices-setting-up-virtual-brainwear-r/creating-a-virtual-brainwear-device)) or an OSC compatible EMOTIV Brainwear® 2. Choose a [training profile](/emotivbci/training-profiles.md) to connect to the external device. 3. Select Sending mode: Unicast to Self 4. Set the IP: 127.0.0.1 5. Set the Port: 8000 6. Choose the Data stream you want to connect: Facial expressions, Mental Commands, or Performance Metrics 7. Click Start 8. Open Max MSP, go to File > Package Manager and install CNMAT Externals 9. Go to and check the table with OSC Address Patterns 10. Create (replicate) the nodes below and change OSC-route according to whichever OSC Pattern you wish to address (in the example image, Facial expressions/Smile) - check table in the previous step for the addresses. 11. Open Processing and go to Sketch > Import Library… > Add Library , search and install oscP5 12. Open a new File. 13. Import oscP5 to the code and initialize an instance listening to port 12000. Example code (copy and paste in Processing): |

import oscP5.\*;
//OSC receive
OscP5 oscP5;
// This value is set by the OSC event handler

float importedValue = 0;
float radius;


void setup() {
size(1200,1000);

// Initialize an instance listening to port 12000
oscP5 = new OscP5(this,8500);
}

void draw() {
background (0);
// Scale up imported value
radius = importedValue \* 1000;

// Display circle at location vector
stroke(255);
strokeWeight(2);
fill(255);
ellipse(500,500, radius, radius);
println(radius);

}

void oscEvent(OscMessage theOscMessage) {
float value = theOscMessage.get(0).floatValue();

importedValue = value;
}

| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | 14\. Click the Play button and watch the graphics change according to Smile. importedValue is associated with the circle radius. 15\. Open any example code in File > Examples..\ **16.** Associate importedValue with any float variable from any Library to play around. Be sure to: * **Import oscP5;** |

import oscP5.\*;
//OSC receive
OscP5 oscP5;
// This value is set by the OSC event handler

| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | * **Initialize importedValue (before void setup);** | **`float importedValue = 0;`** | | ------------------------------ | * **Initialize oscP5 (place it inside void setup);** |

// Initialize an instance listening to port 12000
oscP5 = new OscP5(this,8500);

| | ---------------------------------------------------------------------------------------------------------------------------------------------------------- | * **Associate the event with the variable importedValue (place it after void draw);** |

void oscEvent(OscMessage theOscMessage) {
float value = theOscMessage.get(0).floatValue();

importedValue = value;
}

| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://emotiv.gitbook.io/emotivbci/osc/example-connection-with-maxmsp.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.