Milesight EM320-TILT User manual

Tilt Sensor
Featuring LoRaWAN®
EM320-TILT
User Guide

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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 disassembled or remodeled in any way.
In order to protect the security of the device, please change device password when first
configuration. The default password is 123456.
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.
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.
The battery should be removed from the device if it is not to be used for an extended period.
Otherwise, the battery might leak and damage the device. Never leave a discharged battery
in the battery compartment.
Make sure all batteries are newest when install, or battery life will be reduced.
The device must never be subjected to shocks or impacts.
Declaration of Conformity
EM320-TILT is in conformity with the essential requirements and other relevant provisions of the
CE, FCC, and RoHS.
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: [e-mail]
Support portal: support.milesight-iot.com
Tel: [phone]
Fax: [phone]
Address: Building C09, Software Park III,
Xiamen 361024, China

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Revision History
Date
Doc Version
Description
Feb.14, 2023
V 1.0
Initial version

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Contents
1. Product Introduction ......................................................................................................................... 5
1.1 Overview ...................................................................................................................................5
1.2 Features ................................................................................................................................... 5
2. Hardware Introduction ...................................................................................................................... 5
2.1 Packing List ..............................................................................................................................5
2.2 Hardware Overview ................................................................................................................. 6
2.3 Dimensions(mm) .....................................................................................................................6
3. Operation Guide .................................................................................................................................7
3.1 NFC Configuration ................................................................................................................... 7
3.2 LoRaWAN Settings .................................................................................................................. 8
3.3 Basic Settings ........................................................................................................................10
3.4 Threshold Settings ................................................................................................................ 11
3.5 Maintenance .......................................................................................................................... 13
3.5.1 Upgrade ....................................................................................................................... 13
3.5.2 Backup .........................................................................................................................14
3.5.3 Reset to Factory Default .............................................................................................15
4. Installation ....................................................................................................................................... 15
5. Device Payload ................................................................................................................................ 16
5.1 Basic Information .................................................................................................................. 16
5.2 Sensor Data ........................................................................................................................... 17
5.3 Downlink Commands ............................................................................................................ 18

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1. Product Introduction
1.1 Overview
EM320-TILT is an LoRaWAN®tilt sensor mainly for angle measurement and asset movement
detection. With a compact size and 3-axis accelerometer, EM320-TILT can be installed to the
objects easily to measure its X,Y,Z tilt angles. In addition, EM320-TILT supports customizing
initial position to detect movement based on angle changes and send threshold alarms.
Compliant with Milesight LoRaWAN®gateway and Milesight IoT Cloud solution, users can know
the angles and tilt threshold alarms in real-time via browser or mobile app remotely.
EM320-TILT can be widely used in tree monitoring, pole lean detection, landslide monitoring, etc.
1.2 Features
Built-in MEMS accelerometer sensor to measure the 3-axis angles of any objects
Flexible threshold condition settings, suitable for different kinds of applications
Easy to install, suitable for various types of objects as trees, poles, grounds, etc.
IP67 waterproof enclosure for outdoor applications
Anti-theft design on back cover to secure firm and sturdy installation
Ultra-wide-distance wireless transmission up to line of sight of 15km
Equipped with NFC for one touch configuration
Function well with standard LoRaWAN®gateways and network servers
Compliant with Milesight IoT Cloud
2. Hardware Introduction
2.1 Packing List
1 × EM320-TILT
Sensor
2 × Wall
Mounting Kits
1 × Fixing Screw
1 × Quick Start
Guide
1 × Warranty
Card
If any of the above items is missing or damaged, please contact your sales Representative.

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2.2 Hardware Overview
When you install EM320-TILT on site, below is the angle number you can expect with
corresponding device gesture.
2.3 Dimensions(mm)

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2.4 Power Button
The LED indicator and power button are inside the device. Switch on/off and reset can also be
configured via NFC.
Function
Action
LED Indication
Turn On
Press and hold the button for more than 3 seconds.
Off →On
Turn Off
Press and hold the button for more than 3 seconds.
On →Off
Reset
Press and hold the button for more than 10 seconds.
Blink 3 times.
Check
On/Off Status
Quickly press the power button.
Light On: Device is on.
Light Off: Device is off.
3. Operation Guide
3.1 NFC Configuration
EM320-TILT sensor can be monitored and configured via NFC. Please refer the following steps
to complete configuration.
1. Download and install “Milesight ToolBox” App from Google Play or Apple App Store.
2. Enable NFC on the smartphone and launch Milesight ToolBox.
3. Attach the smartphone with NFC area to the device to read device information. Basic
information and settings of the device will be shown on ToolBox App if it’s recognized
successfully. You can read and configure the device by tapping the Read/Write device on the
App. In order to protect the security of the device, please change password when first
configuration. The default password is 123456.
Note:
1) Ensure the location of smartphone NFC area and it’s recommended to take off phone case.
2) If the smartphone fails to read/write configurations via NFC, keep the phone away and back
to try again.
3) EM320-TILT sensor can also be configured by dedicated NFC reader, which can be
purchased from Milesight IoT.

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3.2 LoRaWAN Settings
LoRaWAN settings is used for configuring the transmission parameters in LoRaWAN®network.
Basic LoRaWAN Settings:
Go to Device > Settings > LoRaWAN Settings of ToolBox App to configure join type, App EUI, App
Key and other information. You can also keep all settings by default.
Parameters
Description
Device EUI
Unique ID of the device which can also be found on the label.

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App EUI
Default App EUI is 24E124C0002A0001.
Application Port
The port is 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 network server to adjust data rate of the device.
Tx Power
Transmit power of the device.
Note:
1) Please contact sales for device EUI list if there are many units.
2) Please contact sales if you need random App keys before purchase.
3) Select OTAA mode if you use Milesight IoT cloud to manage devices.
4) Only OTAA mode supports rejoin mode.
LoRaWAN Frequency Settings:
Go to Settings > LoRaWAN Settings to select supported frequency and select channels to send

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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
3.3 Basic Settings
Go to Device > Settings > General Settings to change the reporting interval, etc.

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Parameters
Description
Reporting Interval
Reporting interval of transmitting current sensor values to network
server. Default: 1080 mins, Range: 1-1080 mins
Change Password
Change the password for ToolBox App or software to read/write this
device.
3.4 Threshold Settings
Go to Device > Settings > Threshold Settings to enable the threshold settings and input the angle
threshold. You can set a relative initial surface to measure the deviance from an initial one and if
the device detects the angle of a certain axis reaches the threshold based on the initial position,
it will upload the current data instantly.

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Parameters
Description
Initial Position
Click Setting to set current position of device as initial position to measure
the deflection angle.
Click Clear to change the initial position back to (0.00°, 0.00°, -90.00°).
Note: after writing Setting or Clear configuration, click Read to read the device
to check if the initial position changes successfully.
Over / °
The maximum/upper limit of angle threshold.
Below / °
The minimum/lower limit of angle threshold.
Alarm Condition
Acceptable elements are “X”, “Y”, “Z”, “and”, “or” “only”, it takes 2 or 3 axes to
complete an expression and the device will only read from left to right. If left
blank, it will consider the condition as “or”.
Example:
1) XandYorZ means (X and Y) or Z, that is XandY meets the threshold or Z
meets the threshold.
2) XorYandZ means (X or Y) and Z, that is XandZ meets the threshold or YorZ
meets the threshold.
Alarm Reporting
Interval
After the threshold is triggered, the device will detect if the threshold is
triggered again according to this reporting interval.
Alarm Reporting
Times
After the threshold is triggered, the device will detect according to Alarm
Reporting Interval and if still triggered, the device will send the certain number
of alarms to NS.
Example:
When X axis is detected to 0° (0° - 1.91° = -1.91° < -1°), it will trigger the threshold and upload a
alarm package right away. If it changes back to normal, the device will also upload a data
package immediately; if not, it will send alarm package after 1 minute. This process will repeat 2
times.

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3.5 Maintenance
3.5.1 Upgrade
1. Download firmware from www.milesight-iot.com to your smartphone.
2. Open ToolBox App and click Browse to import firmware and upgrade the device.
Note:
1) Operation on ToolBox is not supported during the upgrade.
2) Only Android version ToolBox supports the upgrade feature.

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3.5.2 Backup
EM320-TILT sensor supports configuration backup for easy and quick device configuration in
bulk. Backup is allowed only for devices with the same model and LoRaWAN®frequency band.
1. Go to Template page on the App and save current settings as a template. You can also edit
the template file.
2. Select one template file that saved in the smartphone and click Write, then attach it to another
device to write configuration.
Note: Slide the template item to the left to edit or delete it. Click the template to edit the
configurations.

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3.5.3 Reset to Factory Default
Please select one of following methods to reset device:
Via Hardware: Hold on reset button inside the device more than 10s.
Via ToolBox App: Go to Device > Maintenance > Reset to click Reset, then attach smart phone
with NFC area to device to complete reset.
4. Installation
1. Remove the backplate on the back of the device, screw the wall plugs into the wall and fix the
backplate with screws on it, then install back the device. Note that the vent of device should not
face upwards when installing.
2. Fix the bottom of the device to the cover with a fixing screw.

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Installation Location:
Ensure the location of device is within the communication range of LoRaWAN®gateway and keep it
away from metal objects.
Ensure that the device is tightly attached without any gap to the surface to be measured of a certain
object, and one of the 3 axes should be paralleled with the measuring axis of the object, otherwise,
the result may not be correct.
5. Device Payload
All data are based on following format (HEX), the Data field should follow little-endian:
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.
5.1 Basic Information
EM320-TILT sensors report basic information of sensor whenever joining the network.
Channel
Type
Description
ff
01(Protocol Version)
01=>V1
09 (Hardware Version)
01 40 => V1.4
0a (Software Version)
01 14 => V1.14

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0b (Power On)
Device is on
0f (Device Type)
00: Class A, 01: Class B, 02: Class C
16 (Device SN)
16 digits
Example:
ff0bff ff0101 ff166785c38144050018 ff090110 ff0a0101 ff0f00
Channel
Type
Value
Channel
Type
Value
ff
0b
(Power On)
ff
(Reserved)
ff
01
(Protocol Version)
01
(V1.0)
Channel
Type
Value
Channel
Type
Value
ff
16
(Device SN)
6785c381440
50018
ff
09
(Hardware version)
0110
(V1.1)
Channel
Type
Value
Channel
Type
Value
ff
0a
(Software
version)
0101
(V1.1)
ff
0f
(Device Type)
00
(Class A)
5.2 Sensor Data
EM320-TILT sensors report sensor data according to reporting interval (1080mins by default).
Example:
017564 03d498fd 44ff 6b22
Channel
Type
Value
Channel
Type
Value
01
75
(Battery Level)
64=>100%
03
d4
(Angle)
X: 98 fd => fd 98
= (-616-0)/2 * 0.01
= -3.08°
Y: 44 ff => ff 44
= (-188-0)/2 * 0.01
= -0.94°
Item
Channel
Type
Description
Battery Level
01
75
UINT8, Unit: %
Angle
03
d4
6 Bytes, INT16
angle_x (2B) + angle_y(2B) + angle_z(2B),
Unit:°, Resolution: 0.01°
angle_x bit0: 0-normal; 1-trigger
angle_y bit0: 0-normal; 1-trigger
angle-z bit0: 0-normal; 1-trigger

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Z: 6b 22 => 22 6b
= (8811-1)/2 * 0.01
= 44.05°
X=fd 98 => 1111 1101
1001 1000
X_bit0: 0 => normal
Y_bit0: 0 => normal
Z_bit0: 1 => trigger
5.3 Downlink Commands
EM320-TILT sensors support downlink commands to configure the device. The application port
is 85 by default.
Channel
Type
Description
ff
03 (Set Reporting Interval)
2 Bytes, unit: s
06 (Set Threshold)
9 Bytes:
Threshold Type(1B) + Min Threshold (2B) + Max
Threshold (2B)+ Alarm Reporting Interval (2B) +
Alarm Reporting Time (2B)
Threshold Type:
Bit0~Bit2:
000-disable
001-below (minimum threshold)
010-over (maximum threshold)
011-within
100-below or above
Bit3: X-axis angle
Bit4: Y-axis angle
Bit5: Z-axis angle
Bit6~Bit7: Reserved
10 (Reboot)
ff (Reserved)
62 (Set Initial Position)
ff: set current position as initial position
fe: set the initial position to (0.00°, 0.00°, -90.00°)
63 (Set Alarm Condition)
8 Bytes, hex string of ASCII expression; if ASCII
expression takes less than 8 bytes, add 0 in the

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end to meet the size.
Note: before setting the condition, ensure the
corresponding axis threshold is enabled, or this
condition will not work
Example:
1. Set reporting interval as 20 minutes.
ff03b004
Channel
Type
Value
ff
03 (Set Reporting Interval)
b0 04=>04 b0=1200s =20 minutes
2. Set X-axis threshold between 10° and 20°, it will detect the threshold every 1 minute, send
alarm 3 times at most.
3. Reboot the device.
ff10ff
Channel
Type
Value
ff
10 (Reboot)
ff (Reserved)
4. Set the alarm condition to be X and Y or Z, before setting ensure X, Y and Z thresholds are
enabled.
ff635826597c5a0000
Channel
Type
Value
ff
63 (Set Alarm Condition)
5826597c5a0000 = X&Y|Z
5. Set current position as initial position.
ff62ff
Channel
Type
Value
ff
62 (Set Initial Position)
ff = set current position as initial position
-END-
ff060ce803d0073c000300
Channel
Type
Value
ff
06 (Set Threshold)
0c => 00 001 100 = when X axis angle is
below or above,
e803 => 1000 = 10.00°
d007 => 2000 = 20.00°
3c00 => 60 s = 1 min
0300 => 00 03 = 3 times