Milesight EM400-MUD Multifunctional Ultrasonic Distance Sensor User Guide

: June 10, 2024
: Milesight

Milesight EM400-MUD Multifunctional Ultrasonic Distance Sensor

Milesight EM400-MUD Multifunctional Ultrasonic Distance Sensor-
product

Product Information

The EM400-MUD Multifunctional Ultrasonic Distance Sensor is a device designed for measuring distance accurately. It features an NFC power on/off function and comes with mounting kits for easy installation. The device is in compliance with CE, FCC, and RoHS requirements.

Features

Accurate distance measurement using ultrasonic technology
NFC power on/off function
Compliant with CE, FCC, and RoHS requirements
Compact design for easy installation

Safety Precautions

Please follow the instructions carefully to prevent any damage or loss. Do not disassemble or remodel the device in any way. Change the default password to ensure security. Do not use the device as a reference sensor. Do not expose the device to naked flames, extreme temperatures, or shocks.

Declaration of Conformity

The EM400-MUD is in compliance with essential requirements and other relevant provisions of CE, FCC, and RoHS.

Product Usage Instructions

Installation

To install the EM400-MUD:

Check the packing list to ensure all items are present and undamaged.
Choose a suitable location to mount the device.
Use the mounting kits provided to secure the device in place.

Device Payload

Basic Information

The basic information about the device includes:

Type: EM400-MUD
Password: default is 123456, change for security
Dimensions: see the hardware overview section of the user manual

Sensor Data

The device measures distance accurately using ultrasonic technology. The sensor data includes:

Distance measurement in meters

Downlink Commands

The device can receive downlink commands for operation. Please refer to the user manual for a list of available commands.

Safety Instruction

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 disassembled or remodeled in any way.
In order to protect the security of the device, please change the device password when first configuring it. The default password is 123456.
The device is not intended to be used as a reference sensor, and Milesight won’t should responsible 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 in where the temperature is below/above the operating range.
Make sure both batteries are newest when install, or battery life will be reduced.
The device must never be subjected to shocks or impacts.

Declaration of Conformity
EM400-MUD is in conformity with the essential requirements and other relevant provisions of the CE, FCC, and RoHS. Milesight EM400-MUD Multifunctional
Ultrasonic Distance Sensor-fig-1

Copyright © 2011-2023 Milesight. All rights reserved.
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
Support Portal: support.milesight-iot.com Tel: 86-592-5085280
Fax: 86-592-5023065
Address: Building C09, Software Park III, Xiamen 361024, China

Product Introduction

Overview

EM400-MUD is a multifunctional ultrasonic distance sensor with small blind spot. Besides a wide measuring rage, EM400-MUD is equipped with three pre-set modes including standard mode, trash bin mode, and parking lot mode for different applications. Featuring low power consumption LoRaWAN® technology, EM400-MUD can work for over 10 years with its two built-in 9000 mAh batteries.
Besides, EM400-MUD is equipped with a 3-axis accelerometer and temperature sensor to detect the tilt status of devices. Compliant with Milesight LoRaWAN® gateway and Milesight IoT Cloud, users know the container status and fill-in level in real-time via browser and mobile App remotely.

Features

3-450 cm wide detection range with small blind zone
Equipped with three pre-set modes for different applications
Equipped with NTC thermistor for the detection and alarm of trash burning
Built-in 3-axis accelerometer sensor to monitor device tilt status
Damp-proof coating inside and IP67 waterproof enclosure for outdoor applications
Built-in two 9000 mAh replaceable batteries and work for 10 years without replacement
Ultra-wide-distance wireless transmission up to line of sight of 15km
Equipped with NFC for one touch configuration, support card emulation mode
Function well with standard LoRaWAN® gateways and network servers
Compatible with Milesight IoT Cloud

Hardware Introduction

Packing List

Milesight EM400-MUD Multifunctional Ultrasonic Distance Sensor-
fig-3

If any of the above items is missing or damaged, please contact your sales representative.

Hardware Overview

Dimensions (mm) Power Button
EM400-MUD can be switched on/off via NFC. Besides, users can use power button to switch on/off and reset the device manually.

Function	Action	LED Indication
Switch On	Press and hold the button for more than 3 seconds.	Off → On
Switch Off	Press and hold the button for more than 3 seconds.	On → Off
Reset	Press and hold the button for more than 10 seconds.	Quickly Blinks

Check

On/Off Status

|

Quickly press the power button.

| Light On: Device is on
Light Off: Device is off

Operation Guide

NFC Configuration

EM400-MUD can be configured via NFC.

Download and install “Milesight ToolBox” App from Google Play or App Store.
Enable NFC on the smartphone and open “Milesight ToolBox” App.
Attach the smartphone with NFC area to the device to read the basic information.
Basic information and settings of devices will be shown on ToolBox if it’s recognized successfully. You can switch on/off, read and write the device by tapping the button on the Apps. In order to protect the security of devices, password validation is required when configuring via unused phone. Default password is 123456.

Note:

Ensure the location of smartphone NFC area and it’s recommended to take off phone case.
If the smartphone fails to read/write configurations via NFC, keep the phone away and back to try again.
EM400-MUD can also be configured by dedicated NFC reader provided by Milesight IoT or you can configure it via TTL interface inside the device.

LoRaWAN Settings

LoRaWAN settings is used for configuring the transmission parameters in the LoRaWAN® network.

Basic LoRaWAN Settings:
Go to Device > Setting > LoRaWAN Settings of ToolBox App to configure join type, App EUI, App Key and other information. You can also keep all settings by default.

Milesight EM400-MUD Multifunctional Ultrasonic Distance Sensor-
fig-8 Milesight EM400-MUD
Multifunctional Ultrasonic Distance Sensor-fig-9

Device EUI	Unique ID of the device which can also be found on the label.
App EUI	Default App EUI is 24E124C0002A0001.
Application Port	The port used for sending and receiving data, default port

is 85.
Join Type| OTAA and ABP mode are available.
Application Key| Appkey for OTAA mode, default is 5572404C696E6B4C6F52613230313823.
Device Address| DevAddr for ABP mode, default is the 5th to 12th digits of SN.
Network Session

Key

|

Nwkskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.

Application Session Key|

Appskey for ABP mode, default is 5572404C696E6B4C6F52613230313823.

LoRaWAN Version| V1.0.2, V1.0.3 are available.
Work Mode| It’s fixed as Class A.
RX2 Data Rate| RX2 data rate to receive downlinks.
RX2 Frequency| RX2 frequency to receive downlinks. Unit: Hz
Spread Factor| If ADR is disabled, the device will send data via this spread factor.

Confirmed Mode

| If the device does not receive ACK packet from network server, it will resend

data once.

Rejoin Mode

| Reporting interval ≤ 30 mins: the device will send a specific number of LinkCheckReq MAC packets to the network server every 30 mins to validate connectivity; if there is no response, the device will re-join the network.

Reporting interval > 30 mins: the device will send a specific number of LinkCheckReq MAC packets to the network server every reporting interval to validate connectivity; if there is no response, the device will re-join the

network.

Set the number of packets sent|

When rejoin mode is enabled, set the number of LinkCheckReq packets sent.

ADR Mode| Allow the network server to adjust data rate of the device.
Tx Power| Transmit power of device.

Note:

Please contact sales for device EUI list if there are many units.
Please contact sales if you need random App keys before purchase.
Select OTAA mode if you use Milesight IoT cloud to manage devices.
Only OTAA mode supports rejoin mode.

LoRaWAN Frequency Settings:

Go to Setting > LoRaWAN Settings of ToolBox App to select supported frequency and select channels to send uplinks. Make sure the channels match the LoRaWAN® gateway.

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

Milesight EM400-MUD Multifunctional Ultrasonic Distance Sensor-
fig-11

Basic Settings
Go to Device > Setting > General Settings of ToolBox App to change the reporting interval, etc.

Parameters	Description
Device Mode	Select from Standard Mode, Bin Mode or Parking Lot Mode.

Reporting Interval

| Reporting interval of transmitting data to a network server.

Standard Mode: 10 minutes as default;

Bin mode: 20 minutes as default;

Parking Lot Mode: 1080 minutes as default. If the sensor detects the occupancy status change, it will report it immediately.

Collecting Interval

| Collecting interval of measuring distance on Parking Lot Mode. Default:

20s; Range: 1~600s

Installation Height| Set the installation height between device and ground when in Parking Lot Mode. Default: 3m; Range: 0.030~4.500m

Threshold Distance Value (Δ) is 1m as default, triggering logic is as below:

Installation Height – Detected Distance < Δ, the sensor will reports occupied immediately.

Installation Height – Distance Distance > Δ, the sensor will reports vacant immediately.

Tilt & Distance

Switch

| When detecting that the offset angle is greater than 20 degrees, turn off

the distance sensor.

---|---

Change Password

|

Change the password for ToolBox App or software to access this device.

Advanced Settings

Calibration Settings
Go to Device > Setting > Calibration Settings to enable calibration. EM400-MUD supports two calibration types.

Numerical Calibration: users can define calibration value to correct every distance.
Measure Outlier Calibration: users can define either outlier range or value When the device distance value exceeds the outlier range (or range) comparing to last value, the device will measure the distance again.

Threshold Settings
Go to Device > Setting > Threshold Settings to enable the threshold settings and input the distance threshold. EM400-MUD will detect whether the distance reaches the threshold according to collecting interval. If threshold is triggered, it uploads the current data once instantly.
Note: threshold setting is only for bin mode and standard mode.

Parameters	Description

Collecting Interval

| Collecting interval to detect distance, this should be smaller than or equal

to reporting interval.

Threshold Dismiss

Report

| When the collected value changes from outside the threshold to within the

threshold, a threshold release packet will be reported.

Maintenance

Upgrade

Download firmware from Milesight website to your smartphone.
Open Toolbox App, go to Device > Maintenance and click Browse to import firmware and upgrade the device.
Note:
Operation on ToolBox is not supported during a firmware upgrade.
Only Android version ToolBox supports the upgrade feature.

Backup

EM400-MUD support configuration backup for easy and quick device configuration in bulk. Backup is allowed only for devices with the same model and LoRaWAN® frequency band.

Go to Template page on the App and save current settings as a template. You can also edit the template file.
Select one template file which saved in the smartphone and click Write, then attach to another device to write configuration.

Note : Slide the template item left to edit or delete the template. Click the template to edit the configurations.

Reset to Factory Default

Please select one of the following methods to reset the device:
Via Hardware: Hold on the power button (internal) for more than 10s.
Via ToolBox App: Go to Device > Maintenance to click Reset, then attach the smartphone with NFC area to device to complete reset. Milesight EM400-MUD
Multifunctional Ultrasonic Distance Sensor-fig-20

Installation

Drill two holes on the container cover according to the location of device mounting holes.
Put the device under container cover and align the holes in order to perfectly screw the bolts into the holes from the other side of the cover.
Besides, the device can also be fixed by two M4 mounting screws and wall plugs.

Installation location:

In order to provide the best data transmission, please ensure the device is deployed within the signal range of the LoRaWAN® gateway and keep it away from metal objects and obstacles.
The device must be placed in a horizontal position above the detected object so that it has a clear path to the object.
The device should be installed at least 30cm away from the side-wall without obstructions blocking the ultrasonic signal. If the device needs to be installed on the side wall, please ensure the ultrasonic horn is away from the side wall.
When EM400-MUD is in waste bin mode, place the device in the center of waste bin mode here are some recommended sizes of waste bins: when the height is 88cm, the minimum radius should be 24cm.

Device 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	…

For decoder examples please find files on https://github.com/Milesight- IoT/SensorDecoders.

Basic Information
EM400-MUD reports basic information of sensor whenever it joins the network.

Channel	Type	Description

ff

Example:

ff0bff ff0101 ff166329c42503920003 ff090100 ff0a0101 ff0f00

(Power On)

| ff

(Reserved)

| ff| 01

(Protocol Version)

ff

| 0a (Software

version)

| 0101 (V1.1)|

ff

| 0f (Device Type)| 00

(Class A)

Sensor Data
EM400-MUD reports sensor data according to different mode settings.

Channel	Type	Description
01	75(Battery Level)	UINT8, Unit: %
03	67 (Temperature)	INT16, Unit: °C
04	82 (Distance)	INT16, Unit: mm

05

|

00 (Device Position)

| 00: Normal (horizontal offset angle < 20°) 01: Tilt (horizontal offset angle ≥ 20°)

Example:

017564 0367f800 04820101 050000

01

| 75

(Battery)

|

64 => 100%

|

03

| 67

(Temperature)

| f8 00 => 00 f8

= 248 * 0.1

=24.8 °C

(Distance)

| 01 01

=257mm

| 05| 00

(Device Position)

| 00=Normal
| | =0.257m| | |

Threshold Packet:

When collected distance exceeds threshold, EM400-MUD will report a distance alarm packet; besides, it will also report a alarm dismiss packet if distance returns back to normal value. When the abrupt change of temperature is greater than 5 °C, it will report a temperature alarm packet.

Channel	Type	Description
		3 Bytes,
		Distance (2 Bytes) + Alarm Status (1 Byte)

84

| 82

(Distance )

| Distance: unit — mm

Alarm Status:

83

| 67

(Temperature)

| Temperature: unit — °C

Alarm Status:

| | 00 -Alarm dismiss
| | 01 -Alarm

Example:

Distance Threshold
8482330701

Channel| Type| Value
84| 82

(Distance)

| Distance: 33 07 =>07 33 = 1843mm = 1.843m

Alarm Status: 01= Alarm

Temperature Threshold
8367220101

Channel| Type| Value
83| 67

(Temperature)

| Temperature: 22 01 =>01 22 = 290 * 0.1 = 29°C

Alarm Status: 01= Alarm

Downlink Commands

EM400-MUD supports downlink commands to configure the device. Application port is 85 by default.

Channel	Type	Description
ff	10 (Reboot)	ff (Reserved)
03 (Set Reporting Interval)	2 Bytes, unit: s

71 (Set Device Mode)

| 00 = Standard Mode; 01 = Bin Mode; 02 = Parking Lot Mode
3e (Set Tilt & Distance Switch)| 00 = Disable; 01 = Enable
56 (Set Ultrasonic Distance

Sensor)

|

00 = Disable; 01 = Enable

06 (Set Threshold Alarm)| 9 Bytes, CTRL(1B)+Min(2B)+Max(2B)+00000000(4B)CTRL:

Bit2~Bit0:

00- disable 001-below 010-above 011-within

below or above Bit5~Bit3:

01- Standard Mode

| | 010-Bin Mode Bit6=0

Bit7:

0 – disable threshold dismiss report 1 – enable threshold dismiss report

---|---|---
70 (Set Height Threshold in Parking Lot Mode)|

2 Bytes, unit: mm

77 (Set Installation Height)| 2 Bytes, unit: mm

Example:

Set reporting interval as 20 minutes.
ff03b004

Channel| Type| Value
ff| 03 (Set Reporting Interval)| b0 04 => 04 b0 = 1200s = 20 minutes
Reboot the device.
ff10ff

Channel| Type| Value
ff| 10 (Reboot)| ff (Reserved)
Set the device as standard mode.
ff7100

Channel| Type| Value
ff| 71 (Set Device Mode)| 00 = Standard Mode
Enable the “Tilt & Distance Switch” feature.
ff3e01

Channel| Type| Value
ff| 3e (Set Tilt & Distance Switch)| 01 = Enable
When the distance is below 20cm or above 80cm, the sensor will send a threshold alarm.
ff3e 8c c800 2003 0000 0000

Channel| Type| Value