how to transfer a data

i want to trasfer a data between 2 nodes,i have created 5 nodes,now i want to transfer data from one node to another,is it possible,if yes can u suggest me how to start it

[Walter Roberson]

Is this WSN? Serial port connections? Systems with multiple ethernet boards?

[FIR]

it is wired network within a single system,i have created 5 nodes

[Walter Roberson]

open a tcp or udp connection, fwrite() the data, fclose() the connection when done.