Heatmiser Data Processing

gistfile1.js

// Code to run on startup
CF.userMain = function() {
    // watch the feedback coming from the system, adjust the values to match the system name and feedback name in your guiDesigner project
    CF.watch(CF.FeedbackMatchedEvent, "HeatmiserWired", "Capture", function(fbName, data) {
        dataBuffer += data; // Append the incoming data to the buffer, now process it
        var MessageCount = 0;
        while ((matches = dataRegex.exec(dataBuffer)) !== null) {
            if (matches) {
                var length = matches[1].charCodeAt(0); // Get the length decimal value
                if (dataBuffer.length >= (length + lengthAdd)) {
                    // All the data is here, so now process it as you need, and remove it from the buffer
                    var wholeMsg = dataBuffer.substr(0, (length + lengthAdd)); // Get the whole message
                     
                    var ProvidedChecksum = wholeMsg.substr((wholeMsg.length - 3), 2); // Get the provided checksum
                    var Message = wholeMsg.substr(0, (wholeMsg.length - 3)); // Get the message without checksum
                    MessageCount++;
                    dataBuffer = dataBuffer.replace(wholeMsg, ''); // Remove the message from the buffer
                    //CF.log(makeReadable(Message));
                    //CF.log("ProvidedChecksum="+makeReadable(ProvidedChecksum));
                    CalculatedChecksum = crc16(Message,"Little");
                    //CF.log("CalculatedChecksum="+makeReadable(CalculatedChecksum));
                    if (ProvidedChecksum !== CalculatedChecksum) {
                        CF.log("Checksum Failure Detected on HeatmiserWired. Message "+MessageCount+" Failed CRC");
                    } else {
                        // Determine Stat ID
                        var ID = wholeMsg.charCodeAt(3);
                        // Push data into Joins
                        CF.setJoin("Heatmiser_"+ID+"_SetTemp", wholeMsg.charCodeAt(27));
                        CF.setToken(CF.GlobalTokensJoin, "Heatmiser_"+ID+"_SetTemp", wholeMsg.charCodeAt(27));
                        CF.setJoin("Heatmiser_"+ID+"_RemoteAirTemp", (wholeMsg.charCodeAt(38)/10));
                        CF.setJoin("Heatmiser_"+ID+"_FloorTemp", (wholeMsg.charCodeAt(40)/10));
                        CF.setJoin("Heatmiser_"+ID+"_InternalAirTemp", (wholeMsg.charCodeAt(42)/10));
                        CF.setJoin("Heatmiser_"+ID+"_CallingHeat", wholeMsg.charCodeAt(44));
                        CF.setJoin("Heatmiser_"+ID+"_CallingHW", wholeMsg.charCodeAt(45));
                    }
                }
            }
        }
    });
}