Split a binary data stream into equal size chunks
npm install chnk
chnk(<size>) - returns a transform stream that reads from a stream of variable length buffers and writes a stream of fixed length chunks of size bytes;
var chnk = require("chnk");
process.stdin.pipe(chnk(32)).on("data", function(buf){
console.log("received: "+buf.toString("hex"));
}).on("error", function(err, buf){
console.log(err.toString(), buf.toString("hex"));
}).on("end", function(){
console.log("done.");
});