Milesight EM500 Series LoRaWAN Light Sensor

Introduction

The EM500 series sensors are a range of sensors manufactured by Xiamen Milesight IoT Co., Ltd. The series includes the following models:

Model	Description
EM500-CO2	Carbon Dioxide Sensor
EM500-LGT	Light Sensor
EM500-PP	Pipe Pressure Sensor
EM500-PT100	PT100 Temperature Sensor
EM500-SMT	Soil Moisture Sensor
EM500-SMTC	Soil Moisture, Temperature and Conductivity Sensor
EM500-SWL	Submersible Level Sensor
EM500-UDL	Ultrasonic Distance/Level Sensor

Product Safety Precautions

It is important to follow the safety precautions listed below to prevent any loss or damage:

• The device must not be remodeled in any way.
• The device is not intended to be used as a reference sensor, and Milesight will not shoulder responsibility for any damage whichmay result from inaccurate readings.
• Do not place the device close to objects with nakedflames.
• Do not place the device where the temperature is below/abovethe operating range.
• Make sure electronic components do not drop out of theenclosure while opening.
• When installing the battery, please install it accurately, and do not install the reverse or wrong model.
• The device must never be subjected to shocks or impacts.

Declaration of Conformity

The EM500 series is in conformity with the essentialrequirements and other relevant provisions of the CE, FCC, and RoHS.

Product Usage Instructions

To use the EM500 series sensors, follow the steps below:

1. Check that the device is not remodeled in any way and that electronic components do not drop out of the enclosure while opening.
2. Ensure that the battery is installed accurately and that thecorrect model is used.
3. Do not place the device close to objects with naked flames or where the temperature is below/above the operating range.
4. Avoid subjecting the device to shocks or impacts.
5. To add a Milesight Gateway, follow the instructions listed under section 5.1 of the user guide.
6. To add EM500 to Milesight IoT Cloud, follow the instructions listed under section 5.2 of the user guide.

Milesight IoT Cloud Management

To manage the EM500 series sensors using Milesight IoT Cloud, follow the steps below:

1. To add a Milesight Gateway, follow the instructions listed under section 5.1 of the user guide.
2. To add EM500 to Milesight IoT Cloud, follow the instructions listed under section 5.2 of the user guide.

Add a Milesight Gateway

To add a Milesight Gateway, follow the steps below:

1. Log into your Milesight IoT Cloud account.
2. Click on “Device Management”.
3. Click on “Gateway Management”.
4. Click on “Add Gateway”.
5. Enter the required information and click on “Save”.

Add EM500 to Milesight IoT Cloud

To add EM500 to Milesight IoT Cloud, follow the steps below:

1. Log into your Milesight IoT Cloud account.
2. Click on “Device Management”.
3. Click on “Device List”.
4. Click on “Add Device”.
5. Select “EM500 Series” as the device type and enter the required information.
6. Click on “Save”.

Appendix

The Appendix of the user guide includes information on defaultLoRaWAN parameters and default uplink channels.

Applicability

This guide is applicable to EM500 series sensors shown as follows, except where otherwise indicated.

Model	Description
EM500-CO2	Carbon Dioxide Sensor
EM500-LGT	Light Sensor
EM500-PP	Pipe Pressure Sensor
EM500-PT100	PT100 Temperature Sensor
EM500-SMT	Soil Moisture Sensor
EM500-SMTC	Soil Moisture Moisture, Temperature and Conductivity Sensor
EM500-SWL	Submersible Level Sensor
EM500-UDL	Ultrasonic Distance/Level Sensor

Safety Precautions

Milesight will not shoulder responsibility for any loss or damage resulting from not following the instructions of this operating guide.

• The device must not be remodeled in any way.
• The device is not intended to be used as a reference sensor, and Milesight will not should responsibility for any damage which may result from inaccurate readings.
• Do not place the device close to objects with naked flames.
• Do not place the device where the temperature is below/above the operating range.
• Make sure electronic components do not drop out of the enclosure while opening.
• When installing the battery, please install it accurately, and do not install the reverse or wrong model.
• The device must never be subjected to shocks or impacts.

Declaration of Conformity

EM500 series is in conformity with the essential requirements and other relevant provisions of the CE, FCC, and RoHS.
All information in this guide is protected by copyright law. Whereby, no organization or individual shall copy or reproduce the whole or part of this user guide by any means without written authorization from Xiamen Milesight IoT Co., Ltd.

For assistance, please contact Milesight technical support:

• Email: iot.support@milesight.com
• Tel: 86-592-5085280
• Fax: 86-592-5023065

Revision History

Date	Doc Version	Description
Nov. 23, 2020	V 1.0	Initial version

Product Introduction

Overview
EM500 series is a sensor mainly used for outdoor environment through wireless LoRa network. EM500 device is battery powered and designed for multiple mounting ways. It is equipped with NFC (Near Field Communication) and can easily be configured by a smartphone or a PC software.
Sensor data are transmitted in real-time using standard LoRaWAN® protocol. LoRaWAN® enables encrypted radio transmissions over long distance while consuming very little power. The user can obtain sensor data and view the trend of data change through Milesight IoT Cloud or through the user’s own Network Server.

Features

• Up to 11km communication range
• Easy configuration via NFC
• Standard LoRaWAN® support
• Milesight IoT Cloud compliant
• Low power consumption with 19000mAh replaceable battery

Hardware Introduction

EM500 series sensors is made up of a LoRa transceiver and a sensor. Among them, ultrasonic sensors and gas sensors are combined with LoRa transceiver.

Hardware Overview

Front View of EM500:

1. LoRa Antenna (Internal)
2. NFC Area
3. Water-proof Connector

Front View of EM500-CO2:

1. LoRa Antenna (Internal)
2. NFC Area
3. Vent Tube

Front View of EM500-UDL:

1. LoRa Antenna (Internal)
2. NFC Area
3. Ultrasonic Horn
   Back View:
4. Battery (Internal)
5. Wall Mounting Holes
6. Pole Mounting Holes

Dimensions(mm)

EM500

EM500-CO2

EM500-UDL

Power Button Descriptions
Note: EM500 can also be turned on/off and reset via Mobile APP or Toolbox.

Function	Action	LED Indication
Turn On	Press and hold the button for more than 3s.	Off → Static Green
Turn Off	Press and hold the button for more than 3s.	Static Green -> Off
Reset	Press and hold the button for more than 10s. Note: EM500 will automatically power on after reset.	Blink 3 times.
Check On/Off Status	Quickly press the power button.	Light On: Device is on.
		Light Off: Device is off.

Basic Configuration

EM500 sensor can be monitored and configured via one of the following methods:

• Mobile APP (NFC);
• Windows software (NFC or Type-C port).
  In order to protect the security of sensor, password validation is required when configuring via unused phone . Default password is 123456.

Configuration via Smartphone APP
Preparation:

• Smartphone (NFC supported)
• Toolbox APP: download and install from Google Play or Apple Store.

Read/Write Configuration via NFC

1. Enable NFC on the smartphone and open“Toolbox”APP.
2. Attach the smartphone with NFC area to the device to read basic information.
   Note: Ensure the location of smartphone NFC area and it is recommended to take off phone case before using NFC.
3. Change the on/off status or parameters, then attach the smartphone with NFC area to the device until the APP shows a successful prompt.
4. Go to“Device > Status” to tap“Read”and attach the smartphone with NFC area to the device to read real-time data of sensor.

Template Configuration
Template settings only work for easy and quick device configuration in bulk.
Note: Template function is allowed only for sensors with the same model and LoRa frequency band.

1. Go to “Template” page on the APP and save current settings as a template.
2. Attach the smartphone with NFC area to another device.
3. Select the template file from Toolbox APP and tap “Write”,keep the two devices close until the APP shows a successful prompt.
4. Slide the template item to the left to edit or delete the template.

Configuration via PC
Preparation:

• Dedicated NFC Reader or Type-C USB cable
• PC (Windows 10 is recommended)
• Toolbox: https://www.milesight-iot.com/software-download/

Log in the Toolbox
Make sure “Toolbox” is downloaded on your computer. Select one of the following methods to log in Toolbox.

Type-C Connection

1. Open the case of EM500 and connect the EM500 to computer via type-C port.
2. Select type as “General” and click password to log in Toolbox. (Default password: 123456)

NFC Connection

1. Connect the NFC reader to computer, then attach the EM500 to NFC area of the reader.
2. Select type as “NFC” and serial port as NFC reader port on Toolbox.

Basic Configuration

1. Click “Read” to read current data of the sensor.
2. When you perform one of the following operations, enter the password and wait a few seconds until toolbox shows a successful prompt. (Password is not need if you connect it via type-C port)Turn on/off the sensor
   • Reset the sensor
   • Click“Write”to change settings
   • Upgrade

Template Settings
Note: Template function is allowed only for sensors with the same model and LoRa frequency band.

1. Go to “Maintenance -> Template and Reset” page in Toolbox.
2. Click “Export” to save the current settings as a template.
3. Click “Browse” to select the correct template from computer.
4. Click “Import” to import the template to the device.

Upgrade

1. Download firmware on your computer.
2. Go to “Maintenance -> Upgrade”page in Toolbox.
3. Click“Browse”and select the firmware from computer.
4. Click“Upgrade”to upgrade the device.Note: If NFC connection is selected, please keep the two devices close and don’t move them in order to get the best connectivity as possible when upgrading.

Advanced Feature Description

LoRaWAN Settings

Parameters	Description	Default
Device EUI	Unique ID of the sensor. It can be found on the label.	On the label
App EUI	App EUI of the sensor.	24E124C0002A0001
Application Port	The port used for sending or receiving data. Default:	85
Join Type	OTAA or ABP mode. Note: If you use Milesight IoT cloud to manage sensors, please select OTAA mode.	OTAA
Application Key	Appkey of the sensor.	5572404C696E6B4C 6F52613230313823
Network ID	NetID of the  sensor  used  for identifying LoRaWAN networks.	0x010203
Device Address	DevAddr of the sensor.	The 5th to 12th digits of SN.
Network Session Key	Nwkskey of the sensor.	5572404C696E6B4C 6F52613230313823
Application Session Key	Appskey of the sensor.	5572404C696E6B4C 6F52613230313823
Spread Factor	Select spread factor from SF7 to SF12.	SF10-DR2
Confirmed Mode	If the sensor does not receive ACK package from network server, it will resend data 3 times most.	Disabled
Rejoin Mode	Sensor will send specific mounts of LoRaMAC packages to check connection status regularly. If no reply after specific packages, the sensor will re-join.	Enabled, 8 packages
ADR Mode	Allow network server to adjust datarate of the sensor.	Enabled
Support Frequency	LoRaWAN region.	EU868 AU915

 

Channel

Enable or disable LoRa channels. If frequency is one of CN470/AU915/US915, you can enter the index of the channel that you want to enable in the input box, making them separated by commas. Examples: 1, 40: Enabling Channel 1 and Channel 40 1-40: Enabling Channel 1 to Channel 40 1-40, 60: Enabling Channel 1 to Channel 40 and Channel 60 All: Enabling all channels Null: Indicates that all channels are disabled

Appendix

Basic Settings

Parameters	Description
Reporting Interval	Interval of sending sensor data. Default: 10min.
Change Password	Change the password of logging Toolbox (Windows) and parameter modify(mobile APP).

Calibration

Parameters	Description
	After saving the calibration value, the sensor will add the calibration value to raw value and send the final value.
	If current value exceeds the outlier range/values, the sensor will re-collect the value. Note: This item is only for EM500-UDL.

Threshold and Alarm

Parameters	Description
Over/Below	Maximum/minimum data to trigger the alarm. After triggered, sensor will send current data ignoring report interval.
Data Collecting Interval	The sensor will detect and check whether the value is triggered again after data collecting interval.

Milesight IoT Cloud Management

EM500 sensors can be managed by Milesight IoT Cloud platform. Milesight IoT cloud is a comprehensive platform that provides multiple services including device remote management and data visualization with the easiest operation procedures. Please register a Milesight IoT Cloud account before operating following steps.

Add a Milesight Gateway

1. Enable “Milesight” type network server and “Milesight IoT Cloud” mode in gateway web GUI.
   Note: Ensure gateway has accessed the Internet. 
2. Go to “My Devices” page and click “+New Devices” to add gateway to Milesight IoT Cloud via SN. Gateway will be added under “Gateways” menu.
3. Check if gateway is online in Milesight IoT Cloud.

Add EM500 to Milesight IoT Cloud

1. Go to “My Devices” page and click “+New Devices”. Fill in the SN of EM500 and select associated gateway.
2. After EM500 is connected to Milesight IoT Cloud, you could check the device information and data and create dashboard for it.

Sensor Payload

All data are based on following format(HEX):

Channel1	Type1	Data1	Channel2	Type2	Data2	Channel 3	…
1 Byte	1 Byte	N Bytes	1 Byte	1 Byte	M Bytes	1 Byte	…

Basic Information
EM500 sensors report basic information of sensor everytime joining the network.

Channel	Type	Data Example	Description
ff	01(Milesight Protocol Version)	01	V1
	09 (Hardware Version)	01 40	V1.4
	0a(Software Version)	01 14	V1.14
	0f(Device Type)	00	Class A
	16（Device SN）	64 10 90 82 43 75 00 01	Device SN is 6410908243750001

Sensor Data
EM500 sensors report sensor data according to reporting interval (10min by default). Battery level is reported every 24 hours.

EM500-CO2

Channel	Type	Data Example	Description
01	75(Battery Level)	64	64=>100 Battery level =100%

 

03	67 (Temperature)	10 01	10 01 => 01 10 = 272 Temp=272*0.1=27.2°C
04	68(Humidity)	71	71=>113 Hum=113*0.5=56.5%
05	7d（CO2）	67 04	67 04 => 04 67 =1127 ppm
06	73（Barometric Pressure）	68 27	68 27=>27 68=10088 Pressure=10088*0.1=1008.8hPa

EM500-LGT

Channel	Type	Data Example	Description
01	75(Battery Level)	64	64=>100 Battery level =100%
03	94 (Light)	50 00 00 00	50 00 00 00=>00 00 00 50=80 lux

EM500-PP

Channel	Type	Data Example	Description
01	75(Battery Level)	64	64=>100 Battery level =100%
03	7b (Pressure)	0a 00	0a 00=>00 0a=10kPa

EM500-PT100

Channel	Type	Data Example	Description
01	75(Battery Level)	64	64=>100 Battery level =100%
03	67 (Temperature)	10 01	10 01 => 01 10 = 272 Temp=272*0.1=27.2°C

EM500-SMT/SMTC

Channel	Type	Data Example	Description
01	75(Battery Level)	64	64=>100 Battery level =100%

 

03	67 (Temperature)	10 01	10 01 => 01 10 = 272 Temp=272*0.1=27.2°C
04	68(Moisture)	71	71=>113 Hum=113*0.5=56.5%
05	7d（Conductivity）	f0 00	f0 00 => 00 f0 =240 µs/cm

EM500-SWL

Channel	Type	Data Example	Description
01	75(Battery Level)	64	64=>100 Battery level =100%
03	77 (Water Level)	02 00	02 00=>00 02=2cm

EM500-UDL

Channel	Type	Data Example	Description
01	75(Battery Level)	64	64=>100 Battery level =100%
03	82 (Distance)	1e 00	1e 00=>00 1e=30mm

Downlink Commands
EM500 sensors support downlink commands to configure the device. Application port is 85 by default.

Channel	Type	Data Example	Description
ff	03(Set Reporting Interval)	b0 04	b0 04 => 04 b0 = 1200s

Appendix

Default LoRaWAN Parameters

DevEUI	24E124 + 2nd to 11th digits of SN e.g. SN = 61 26 A1 01 84 96 00 41 Then Device EUI = 24E124126A101849
AppEUI	24E124C0002A0001

 

Appport	0x55
NetID	0x010203
DevAddr	The 5th to 12th digits of SN e.g. SN = 61 26 A1 01 84 96 00 41 Then DevAddr = A1018496
AppKey	5572404C696E6B4C6F52613230313823
NwkSKey	5572404C696E6B4C6F52613230313823
AppSKey	5572404C696E6B4C6F52613230313823

Default Uplink Channels

Model	Channel Plan	Channel Settings/MHz
EM500-470M	CN470	470.3~489.3(All 95 channels)
EM500-868M	EU868	868.1, 868.3, 868.5
	RU864	868.9, 869.1
	IN865	865.0625, 865.4025, 865.6025
EM500-915M	AU915	915.2~927.1 (All 72 channels)
	US915	902.3~914.2 (All 72 channels)
	KR920	922.1, 922.3, 922.5
	AS923	923.2, 923.4

-END

• www.milesight-iot.com

Documents / Resources

Milesight EM500 Series LoRaWAN Light Sensor [pdf] User Guide EM500-CO2, EM500-LGT, EM500-PP, EM500-PT100, EM500-SMT, EM500-SMTC, EM500-SWL, EM500-UDL, EM500 Series LoRaWAN Light Sensor, EM500 Series, EM500 Series Light Sensor, LoRaWAN Light Sensor, Light Sensor, LoRaWAN Sensor, Sensor

References

• User Manual