Simple buffering and processing of CFLink packets

main.js

var cflinkRegex = /\xF2([\s\S])\xF3([QCTR])(\w{3})(\w{3})\xF4([\s\S]*?)\xF5\xF5/g; // Capture groups: ID, Command Type, Device, Command, Data
var rcvBuffer;

function incomingData(fbName, rcv) {
    // Append new incoming data to buffer
    rcvBuffer += rcv;

    var matches;
    var matchedData = "";
    // Loop through any complete CFLink packets
    while ((matches = cflinkRegex.exec(rcvBuffer)) !== null) {
        // Convert ID to correct format 00-FF
        matches[1] = ("0"+matches[1].charCodeAt(0).toString(16)).slice(-2).toUpperCase();

        // Use the matches array here to do whatever you need...

        // Append the processed packets here to remove from the buffer
        matchedData += matches[0];
    }
    // Reset the regex index
    cflinkRegex.lastIndex = 0;
    // Remove the processed packets from the buffer
    rcvBuffer = rcvBuffer.replace(matchedData, "");
}