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Sending UDP Packets

[1 Reply]
- 01-Jun-2012 09:45 AM
- Forum: Contributed Library Questions
1. import hypermedia.net*
2. int port 50000;
3. String ip ="192.168.1.102"
4. String message =new String("Hello");
5. UDP udpTX;
7. void setup(){
8. udpTX=new UDP(this, port, ip);
9. udptTX.log(true);
10. noLoop();
11. }
13. void draw(){
14. udpTX.send(message,ip,port);
15. delay(5000);
16. loop();
17. }
I have one PC currently hooked up to a router with an ethernet cable and I have another PC connected to the same router with the address '192.168.1.102'. I want to send a packet to the other PC from the PC where I am running this processing application from. When I try to run the application, I get the following error:

opening socket failed!

>address:192.168.1.102, port 50000

>Cannot assign requested address: Cannot bind

I do not see an error however, when I change the ip to the local address.

UDP Mulitcast Receiving

[3 Replies]
- 22-May-2012 11:03 AM
- Forum: Contributed Library Questions
Has anyone tried receiving UDP packets on multicast. When I try listening to the broadcast UDP packets from another device, I get the following error.

Library used: UDP

opening socket failed!

> address:224.0.0.1, port:50000 [group:null]

> error setting options

UDP Library Example

[8 Replies]
- 15-May-2012 09:00 AM
- Forum: Contributed Library Questions
Is there sample code somewhere to receive UDP packets?

The UDP library I downloaded, does not seem to have any example programs.

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