Codec AM107

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// Decode decodes an array of bytes into an object.
function Decode(fPort, bytes) {
    var decoded = {};
    for (var i = 0; i < bytes.length; ) {
        var channel_id = bytes[i++];
        var channel_type = bytes[i++];
        if (channel_id === 0x01 && channel_type === 0x75) {
            decoded.battery = bytes[i];
            i += 1;
        } else if (channel_id === 0x03 && channel_type === 0x67) {
            decoded.temperature = readInt16LE(bytes.slice(i, i + 2)) / 10;
            i += 2;
        } else if (channel_id === 0x04 && channel_type === 0x68) {
            decoded.humidity = bytes[i] / 2;
            i += 1;
        } else if (channel_id === 0x05 && channel_type === 0x6a) {
            decoded.activity = readUInt16LE(bytes.slice(i, i + 2));
            i += 2;
        } else if (channel_id === 0x06 && channel_type === 0x65) {
            decoded.illumination = readUInt16LE(bytes.slice(i, i + 2));
            decoded.infrared_and_visible = readUInt16LE(bytes.slice(i + 2, i + 4));
            decoded.infrared = readUInt16LE(bytes.slice(i + 4, i + 6));
            i += 6;
        } else if (channel_id === 0x07 && channel_type === 0x7d) {
            decoded.co2 = readUInt16LE(bytes.slice(i, i + 2));
            i += 2;
        } else if (channel_id === 0x08 && channel_type === 0x7d) {
            decoded.tvoc = readUInt16LE(bytes.slice(i, i + 2));
            i += 2;
        } else if (channel_id === 0x09 && channel_type === 0x73) {
            decoded.pressure = readUInt16LE(bytes.slice(i, i + 2)) / 10;
            i += 2;
        } else {
            break;
        }
    }
    return decoded;
}
function readUInt16LE(bytes) {
    var value = (bytes[1] << 8) + bytes[0];
    return value & 0xffff;
}
function readInt16LE(bytes) {
    var ref = readUInt16LE(bytes);
    return ref > 0x7fff ? ref - 0x10000 : ref;
}