netvox R718X User manual

Model：R718X
Wireless Ultrasonic Distance Sensor
R718X
User Manual
Copyright©Netvox Technology Co., Ltd.
This document contains proprietary technical information which is the property of NETVOX Technology. It shall be maintained
in strict confidence and shall not be disclosed to other parties, in whole or in part, without written permission of NETVOX
Technology. The specifications are subject to change without prior notice.
Wireless Ultrasonic Distance Sensor

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Table of Content
1. Introduction.......................................................................................................................................................................................3
2.Appearance........................................................................................................................................................................................3
3. Main Features ...................................................................................................................................................................................4
4. Set up Instruction..............................................................................................................................................................................5
5. Data Report.......................................................................................................................................................................................6
6.Application scenario .......................................................................................................................................................................13
7. Installation ......................................................................................................................................................................................15
8. Information about Battery Passivation...........................................................................................................................................18
8.1 To determine whether a battery requires activation................................................................................................................18
8.2 How to activate the battery.....................................................................................................................................................18
9. Important Maintenance Instruction ................................................................................................................................................19

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1. Introduction
The R718X is a LoRaWAN Class A device and it is compatible with LoRaWAN protocol. R718X has a built-in ultrasonic ranging
sensor that can detect the distance from the sensor to the detected object (for example: detect the height of garbage in the waste
bin). R718X also has tilt angle and temperature detection function, it can detect the tilt angle and temperature of the waste bin.
R718X would send out the detected data through wireless network.
LoRa Wireless Technology:
LoRa is a wireless communication technology famous for its long-distance transmission and low power consumption. Compared
with other communication methods, LoRa spread spectrum modulation technique greatly extend the communication distance. It
can be widely used in any use case that requires long-distance and low-data wireless communications. For example, automatic
meter reading, building automation equipment, wireless security systems, industrial monitoring. It has features like small size,
low power consumption, long transmission distance, strong anti-interference ability and so on.
LoRaWAN:
LoRaWAN uses LoRa technology to define end-to-end standard specifications to ensure interoperability between devices and
gateways from different manufacturers.
2. Appearance
Indicator
Function Key
Ultrasonic Ranging Sensor
Built-in NTC Temperature Sensor

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3. Main Features
Apply SX1276 wireless communication module
2 sections ER14505 3.6V Lithium AA battery
Tilt angle detection
Temperature detection
Distance detection
The base is attached with a magnet that can be attached to a ferromagnetic material object
Protection level: Main body IP65
Compatible with LoRaWANTM Class A
Frequency hopping spread spectrum technology
Configuration parameters can be configured through third-party software platforms, data can be read and alarms can be set via
SMS text and email (optional)
Available third-party platform: Actility / ThingPark, TTN, MyDevices/Cayenne
Low power consumption and long battery life
Battery Life:
⁻Please refer to web: http://www.netvox.com.tw/electric/electric_calc.html
⁻At this website, users can find battery lifetime for variety models at different configurations.
1. Actual range may vary depending on environment.
2. Battery life is determined by sensor reporting frequency and other variables.

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4. Set up Instruction
On/Off
Power on Insert batteries. (users may need a screwdriver to open)
Turn on Press and hold the function key for 3 seconds till the green indicator flashes once.
Turn off
(Restore to factory setting) Press and hold the function key for 5 seconds till green indicator flashes for 20 times.
Power off Remove Batteries.
Note:
1. Remove and insert the battery; the device is at off state by default.
2. On/off interval is suggested to be about 10 seconds to avoid the interference of capacitor
inductance and other energy storage components.
3. Five seconds after power on, the device will be in engineering test mode.
Network Joining
Never joined the network
Turn on the device to search the network.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Had joined the network
Turn on the device to search the previous network.
The green indicator stays on for 5 seconds: success
The green indicator remains off: fail
Function Key
Press and hold for 5 seconds
Restore to factory setting / Turn off
The green indicator flashes for 20 times: success
The green indicator remains off: fail
Press once The device is in the network: green indicator flashes once and sends a report
The device is not in the network: green indicator remains off
Sleeping Mode
The device is on and in the
network
Sleeping period: Min Interval.
When the reportchange exceeds setting value or the state changes: send a data report according to
Min Interval.
Low Voltage Warning
Low Voltage 3.2V

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5. Data Report
Data report configuration and sending period are as following:
Min Interval
(Unit: second)
Max Interval
(Unit: second) Reportable Change Current Change≥ Reportable Change
Current Change＜
Reportable Change
Any number between
1~65535
Any number between
1~65535 Can not be 0. Report per Min Interval
Report
per Max Interval
The device will immediately send a version packet report along with an uplink packet including status,distance, temperature,
angle of tilt, fill level of percentage.
The device sends data in the default configuration before any configuration is done.
Default Setting:
MaxTime: Max Interval = 15 min = 900s
MinTime: Max Interval = 15 min = 900s
BatteryChange = 0x01 (0.1v)
DistanceChange = 0x012C (300mm)
TemperatureChange = 0x0A (1°C)
OnDistanceThreshold = 0x01F4 (500mm)
FillMaxDistance = 0x07D0 (2000mm)
AngleChange = 0x0F (15°) *Cannot be modified
Data packet:
a. When used in waste bin detection:Distance, Temperature, AngleofInclination, FillLevel;
Status=0 (Invalid)
b. When used in parking detection: Status, Distance, Temperature, AngleofInclination;
FillLevel=0 (Invalid)
Note:
(1) The device report interval will be programmed based on the default firmware which may vary.
(2) The interval between two reports must be the minimum time.
Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver
http://www.netvox.com.cn:8888/page/index to resolve uplink data.

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Example of data configuration
FPort：0x07
Bytes 1 1 Var(Fix =9 Bytes)
CmdID DeviceType NetvoxPayLoadData
CmdID– 1 byte
DeviceType– 1 byte – Device Type of Device
NetvoxPayLoadData– var bytes (Max=9bytes)
Description Device Cmd
ID Device Type NetvoxPayLoadData
ConfigReport
Req
R718X
0x01
0x34
MinTime
(2bytes Unit:s) MaxTime (2bytes Unit:s) BatteryChange (1byte Unit:0.1v) DistanceChange (2byte Unit:1mm)
Temperature
Change
(2byte Unit:0.1℃)
ConfigReport
Rsp 0x81 Status (0x00_success) Reserved (8Bytes,Fixed 0x00)
ReadConfig
ReportReq 0x02 Reserved (9Bytes,Fixed 0x00)
ReadConfig
ReportRsp 0x82 MinTime (2bytes Unit:s) MaxTime (2bytes Unit:s) BatteryChange (1byte Unit:0.1v) DistanceChange (2byte Unit:1mm)
Temperature
Change
(2byte Unit:0.1℃)
SetOnDistanceTh
resholdRreq 0x03 OnDistanceThreshold (2byte Unit:1mm) Reserved (7Bytes,Fixed 0x00)
SetOnDistanceTh
resholdRrsp 0x83 Status (0x00_success) Reserved (8Bytes,Fixed 0x00)
GetOnDistanceTh
resholdRreq 0x04 Reserved (9Bytes,Fixed 0x00)
GetOnDistanceTh
resholdRrsp 0x84 OnDistanceThreshold (2byte Unit:1mm) Reserved (7Bytes,Fixed 0x00)
SetFillMax
DistanceReq 0x05 FillMaxDistance (2byte Unit:1mm) Reserved (7Bytes,Fixed 0x00)
SetFillMax
DistanceRsp 0x85 Status (0x00_success) Reserved (8Bytes,Fixed 0x00)
GetFillMax
DistanceReq 0x06 Reserved (9Bytes,Fixed 0x00)
GetFillMax
DistanceRsp 0x86 FillMaxDistance (2byte Unit:1mm) Reserved (7Bytes,Fixed 0x00)

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Set Report Time
(1) Configure device parameters MinTime = 1min, MaxTime = 1min, BatteryChange = 0.1v,DistanceChange = 500mm、
TemperatureChange=2°C
Downlink: 0134003C003C0101F40014 003C(Hex) = 60(Dec),01F4(Hex) = 500(Dec),14(Hex) = 20(Dec)
Device returns:
8134000000000000000000 (Configuration is successful)
8134010000000000000000 (Configuration failed)
(2)Read device parameters
Downlink: 0234000000000000000000
Device returns:
8234003C003C0101F40014 (current device parameters)
Set Total Height of The Container
(3)Setting the total height of the container, FillMaxDistance = 5000mm
Downlink: 0534138800000000000000 1388(Hex) = 5000(Dec),
Device returns:
8534000000000000000000 (Configuration is successful)
8534010000000000000000 (Configuration failed)
(4)Read the total height of the container (FillMaxDistance)
Downlink:0634000000000000000000
Device returns:
8634138800000000000000 (Device current parameter)
Switch the Mode
If the mode of the device is waste bin detection, switch it to parking detection.
(5)Set FillMaxDistance to 0
Downlink：0534000000000000000000
Device returns：
8534000000000000000000
(6)Read FillMaxDistance, and check whether it is set successfully.
Downlink：0634000000000000000000
Device returns：
8634000000000000000000

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Set Distance Threshold
(7)Set OnDistanceThreshold to the appropriate value
Downlink：033401F400000000000000 // 01F4 (Hex) = 500 (Dec)
Device returns：
8334000000000000000000
(8)Read OnDistanceThreshold, and check whether it is set successfully.
Downlink：0434000000000000000000
Device returns：
833401F400000000000000
*The mode switches via setting the value of FillMaxDistance and OnDistanceThreshold.
If the current mode of the device is waste bin detection, it can be switched to the parking detection by setting FillMaxDistance to
0 first, and then setting OnDistanceThreshold.
Conversely, the current mode of the device is parking detection, it can be switched to the waste bin detection by setting
OnDistanceThreshold to 0 first, and then setting FillMaxDistance.
Example of Temperature/Distance/Angle Sensor calibration
Port:0x0E
Description CmdID SensorType PayLoad(Fix =9 Bytes)
SetGlobal
CalibrateReq 0x01
0x01
0x36
0x37
Channel(1Byte)
0_Channel1,
1_Channel2,etc
Multiplier
(2bytes,Unsigned) Divisor (2bytes,Unsigned) DeltValue (2bytes,Signed) Reserved (2Bytes,Fixed 0x00)
SetGlobal
CalibrateRsp 0x81
Channel(1Byte)
0_Channel1,
1_Channel2,etc
Status
(1Byte,0x00_success) Reserved (7Bytes,Fixed 0x00)
GetGlobal
CalibrateReq 0x02 Channel (1Byte,0_Channel1,1_Channel2,etc) Reserved (8Bytes,Fixed 0x00)
GetGlobal
CalibrateRsp 0x82
Channel(1Byte)
0_Channel1,
1_Channel2,etc
Multiplier
(2bytes,Unsigned) Divisor (2bytes,Unsigned) DeltValue (2bytes,Signed) Reserved (2Bytes,Fixed 0x00)
ClearGlobal
CalibrateReq 0x03 Reserved (10Bytes,Fixed 0x00)
ClearGlobal
CalibrateRsp 0x83 Status (1Byte,0x00_success) Reserved (9Bytes,Fixed 0x00)
SensorType
Temperature 0x01
Distance 0x36
AngleSensor 0x37

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(1)Set the distance calibration:
If the distance between the device and detected object the R718X detects is 490mm and the actual distance is 500mm, it means
the calibration we want to make is +10mm.
SensorType =0x36, Channel 1= 00, Multiplier = 000A, Divisor = 0000, DeltValue=0001
Downlink：013600000A000000010000
Response：
8136000000000000000000（Configuration success）
(2)Check whether the setting in (1) calibration
Downlink：0236000000000000000000
Response：
823600000A000000010000 (Current configuration)
(3)Set the temperaturecalibration:
If the temperature the R718X detects is 26° and the actual temperature is 27°, it means the calibration we want to make is +1°.
SensorType =0x01 ,Channel 2= 01, Multiplier = 000A, Divisor = 0000, DeltValue=0001
Downlink：010101000A000000010000
Response：
8101010000000000000000（Configuration success）
(4)Check whether the setting in (3) calibration
Downlink：0201010000000000000000
Response：
820101000A000000010000（Current configuration）
(5)Set the angle sensor calibration:
The calibration we want to make Xaxis angle is +10°
SensorType =0x37,Channel 3= 02, Multiplier = 000A, Divisor = 0000, DeltValue=0001
The calibration we want to make Yaxis angle is +10°
SensorType =0x37,Channel 4= 03, Multiplier = 000A, Divisor = 0000, DeltValue=0001
Downlink：
013702000A000000010000 //X axis
013703000A000000010000 //Y axis
Response：
8137020000000000000000 //X axis (Configuration success)
8137030000000000000000 //Y axis (Configuration success)

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(6)Check whether the setting in (5) calibration
Downlink：
0237020000000000000000 //X axis
0237030000000000000000 //Y axis
Response：
823702000A000000010000 //X axis (Current configuration)
823703000A000000010000 //Y axis (Current configuration)
(7) Clear all Channels calibration
Downlink：0300000000000000000000
Response：
8300000000000000000000（Configuration success）
Note:
1. When Multiplier is not 1, Calibration value = DeltValue*Multiplier.
2. When Divisor is not 1, Calibration value = DeltValue/Divisor.
3. The choices of the Channel would be 00-03 Channel
4. With different sensor type, it is forbidden to use that same Channel number.
5. This universal calibration supports calibration of positive and negative numbers.
Example for MinTime/MaxTime logic:
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V
MaxTime MaxTime
Sleeping(MinTime) Sleeping(MinTime)
Note: MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless BatteryVoltageChange
value.
Wake up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V
Wakes up and collects data
REPORTS 3.6V

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Example#2 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
Sleeping(MinTime) sleeping sleeping sleeping
0H 15th M 30th M 45th M 1H
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange= 0.1V.
MaxTime
sleeping sleeping ...
0H 15th M 30th M 45th M 1H 1H 10th M 1H 25th M 1H 40th M 1H 55th M 2H 10th M
Notes :
1) The device only wakes up and performs data sampling according to MinTime Interval. When it is sleeping, it does not
collect data.
2) The data collected is compared with the last data reported. If the data variation is greater than the ReportableChange value,
the device reports according to MinTime interval. If the data variation is not greater than the last data reported, the device
reports according to MaxTime interval.
3) We do not recommend setting the MinTime Interval value too low. If the MinTime Interval is too low, the device wakes
up frequently and the battery will be drained soon.
4) Whenever the device sends a report, no matter resulting from data variation, button pushed or MaxTime interval, another
cycle of MinTime/MaxTime calculation is started.
Wakes up and
collects data
3.6V
Does not report
Wakes up and
collects data
3.6V
Does not report
Wakes up and
collects data
3.6V
Does not report
Wakes up and
collects data
REPORTS 3.6V
Wakes up and
collects data
REPORT 3.6V
Wakes up and
collects data
REPORTS 3.6V
Wakes up and collects data
3.5V |3.5-3.6|=0.1
REPORTS 3.5V
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data 3.5V
Does not report
Wakes up and
collects data
3.5V
Does not report
Wakes up and
collects data
REPORTS 3.5V
Wakes up and
collects data
3.6V
Does not report
Users push the button,
REPORTS 3.5V.
Recalculate MaxTime.

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6. Application scenario
In the use case of detecting the garbage in waste bin, the device should be installed on the top of the waste bin.
After the device is installed and powered, turn on the device and it will detect the distance between the device and the garbage as
well as the percentage of the garbage in the waste bin.
Hmeans the height of the waste bin (this value can be set with the payload command; the “fillmaxdistance” in payload means H)
Dmeans the distance between the device and the garbage (this value is “distance” in uplinks)
Lmeans the garbage (this value can be calculated by the “distance” in uplink and “fillmaxdistance” in payload)
Calculation: L = fillmaxdistacnce - distance
FillLevel means the percentage of the garbage in the waste bin.
FillLevel = ((H - D) / H) * 100%
Illustration 1.

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Illustration 2.
If the R718X is installed as the following way, then the measured distance needs to add the height of the device itself which is
28mm.
Note:
(1) The default value of OnDistanceThreshold is 500mm, and the default value of FillMaxDistance is 2000mm.
(2) The detecting range of the device is 200mm~3500mm
(3) The data of tilt angle that sensor reported would be the one with larger tilt angle between X axis and Y axis.

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7. Installation
When the device turns on, please make sure that the device is on the horizontal surface. Then, use the device after it join the
network successfully. The purpose is to ensure that the angle calibration is complete.
7.1 The waste bin with frame
7.2 The waste bin without the frame but an upper cover
The waste bin without the frame but an upper cover needs to be drilled out the required mounting holes in the cover, and then
install the sensor on the cover. User should find and make sure the installation location that is parallel to the bottom of the waste
bin. Namely, the detecting direction is perpendicular to the bottom of the waste bin.
When the device is installed under the cover of the waste bin, the appearance may be like the figure below.
When the cover is completely opened, the inclination angle is about 90°
(Errors in the result of the device test. The actual inclination angle is about 86°.), and the horizontal plane is 0° reference plane.
R718X
The bottom of waste bin
Outer frame
Install the sensor above the outer frame,
and make it be parallel to the bottom of
the waste bin.
Horizontal Plane

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7.3 Plastic Bucket Installation
Use screws and locking nuts to fix the device, as the figure for reference.
1. After finding the installation position, use the tool to drill 2 holes in the upper cover.
M4 screws can be inserted into the hole.
2. Insert the screw with the gasket into the hole to install the device.
M4 Locking Nut
M4 Gasket
M4*20 Machine Screw

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3. Use a tool to tighten the locking nut.
Note:
1.The installation location can not be at the center of the cover.
Suggest that installing the sensor should be outside the area of the circle with radius 5cm from the center of the cover.
If the ultrasonic sensor is installed in the center, the ultrasonic signal will generate gain which will affect the
measurement result
2.Please do not disassemble the device unless it is required to replace the batteries.
Do not touch the waterproof gasket, LED indicator light, function keys when replacing the batteries.
Please use suitable screwdriver to tighten the screws
(if using an electric screwdriver, it is recommended to set the torque as 4kgf) to ensure the device is impermeable.
Container
R718X
5cm
✖

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8. Information about Battery Passivation
Many of Netvox devices are powered by 3.6V ER14505 Li-SOCl2 (lithium-thionyl chloride) batteries that offer many
advantages including low self-discharge rate and high energy density.
However, primary lithium batteries like Li-SOCl2 batteries will form a passivation layer as a reaction between the lithium
anode and thionyl chloride if they are in storage for a long time or if the storage temperature is too high. This lithium chloride
layer prevents rapid self-discharge caused by continuous reaction between lithium and thionyl chloride, but battery passivation
may also lead to voltage delay when the batteries are put into operation, and our devices may not work correctly in this situation.
As a result, please make sure to source batteries from reliable vendors, and the batteries should be produced within the last
three months.
If encountering the situation of battery passivation, users can activate the battery to eliminate the battery hysteresis.
8.1 To determine whether a battery requires activation
Connect a new ER14505 battery to a 68ohm resistor in parallel, and check the voltage of the circuit.
If the voltage is below 3.3V, it means the battery requires activation.
8.2 How to activate the battery
a. Connect a battery to a 68ohm resistor in parallel
b. Keep the connection for 6~8 minutes
c. The voltage of the circuit should be ≧3.3V

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9. Important Maintenance Instruction
Kindly pay attention to the following in order to achieve the best maintenance of the product:
• Keep the device dry. Rain, moisture, or any liquid might contain minerals and thus corrode electronic circuits. If the device gets
wet, please dry it completely.
• Do not use or store the device in dusty or dirty environment. It might damage its detachable parts and electronic components.
• Do not store the device under excessive heat condition. High temperature can shorten the life of electronic devices, destroy
batteries, and deform or melt some plastic parts.
• Do not store the device in places that are too cold. Otherwise, when the temperature rises to normal temperature, moisture will
form inside, which will destroy the board.
• Do not throw, knock or shake the device. Rough handling of equipment can destroy internal circuit boards and delicate
structures.
• Do not clean the device with strong chemicals, detergents or strong detergents.
• Do not apply the device with paint. Smudges might block in the device and affect the operation.
• Do not throw the battery into the fire, or the battery will explode. Damaged batteries may also explode.
All of the above applies to your device, battery and accessories. If any device is not working properly, please take it to the nearest
authorized service facility for repair.