Milesight EM300-MCS

MarcVanBracht · August 25, 2021, 6:48pm

Hi,

I just added a Milesight EM300-MCS to my TTN V3.

According to the public payload of Milesight the sensor should also sent the Battery level. See decoder

Milesight-IoT/SensorDecoders/blob/master/EM300_Series/EM300-MCS/EM300-MCS_TTN.js

/**
 * Payload Decoder for The Things Network
 * 
 * Copyright 2021 Milesight IoT
 * 
 * @product EM300-MCS
 */
function Decoder(bytes, port) {
    var decoded = {};

    for (var i = 0; i < bytes.length;) {
        var channel_id = bytes[i++];
        var channel_type = bytes[i++];
        // BATTERY
        if (channel_id === 0x01 && channel_type === 0x75) {
            decoded.battery = bytes[i];
            i += 1;
        }
        // TEMPERATURE
        else if (channel_id === 0x03 && channel_type === 0x67) {

This file has been truncated. show original

However, in my TTN console I do not see any value of Battery level. I see only TEMPERATURE, HUMIDUTY and DOOR (open/close)

Does anyone know what I of the payload does wrong?

Marc

Johan_Scheepers · August 25, 2021, 7:23pm

It only repots the battery at intervals, I cant recall if it were hourly or daily, but defiantly not on each message.

Johan_Scheepers · August 26, 2021, 5:53am

Ok, mine reports t very 6 hours

MarcVanBracht · August 26, 2021, 6:54am

@Johan_Scheepers

thanx for the info. I see the data now in TTN V3. My sensor sents it also every 6 hours. More than enough

Marc