netvox R311B User manual

WirelessLight Sensor
Model: R311B
Wireless Light Sensor
R311B
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.

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Table of Content
1. Introduction.......................................................................................................................................................................................2
2. Appearance.......................................................................................................................................................................................3
3. Main Features ...................................................................................................................................................................................3
4. Set up Instruction..............................................................................................................................................................................4
5. Data Report.......................................................................................................................................................................................5
5.1 Example of ReportDataCmd ....................................................................................................................................................5
5.2 Example of ConfigureCmd.......................................................................................................................................................6
5.3 Example for MinTime/MaxTime logic.....................................................................................................................................7
5.4 Difference between R311B and R311G ...................................................................................................................................8
6. Installation ........................................................................................................................................................................................9
7. Important Maintenance Instruction ................................................................................................................................................10

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1. Introduction
R311B is a long-distance Wireless Light Sensor based on the LoRaWAN open protocol (Class A).
When the illuminance exceeds the set threshold, a report will be sent immediately.
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.
This device has been certified by the LoRaAlliance and is allowed to use the following logo on the product:

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2. Appearance
3. Main Features
Compatible with LoRaWAN
2 sections of 3V CR2450 button battery power supply
Illuminance detection
Simple operation and setting
Protection level IP30
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
Note*:
Battery life is determined by the sensor reporting frequency and other variables, please refer to
http://www.netvox.com.tw/electric/electric_calc.html On this website, users can find battery life time for varied models at
different configurations.
Indicator
Light Sensor Function Key

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4. Set up Instruction
On/Off
Power on Insert batteries. (users may need a screwdriver to open) ;
Insert two sections of 3V CR2450 button batteries and close the battery cover.)
Turn on Press any function key till green and red 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 memorizes previous on/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. Press any function key and insert batteries at the same time; it will enter engineer testing
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
Fail to join the network
(when the device is on)
Suggest to check the device verification information on the gateway or consult your platform
server provider.
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 2.4V

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5. Data Report
Data report configuration and sending period are as following:
5.1 Example of ReportDataCmd
FPort：0x06
Bytes 1 1 1 Var(Fix=8 Bytes)
Version DeviceType Report Type NetvoxPayLoadData
Version– 1 byte –0x01——the Version of NetvoxLoRaWAN Application Command Version
DeviceType– 1 byte – Device Type of Device
The device type is listed in Netvox LoRaWAN Application Devicetype doc
ReportType – 1 byte –the presentation of the NetvoxPayLoadData，according the devicetype
NetvoxPayLoadData– Fixed bytes (Fixed =8bytes)
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
When the device is powered on and activated, it will immediately send a version package.
Data will be reported once per hour by default setting.
Default setting:
Maximum time: 3600s
Minimum time: 3600s
BatteryChange: 0x01 (0.1V)
Illuminance Threshold:
When the illuminance exceeds the set threshold, a report will be sent immediately.
Illuminance Threshold: 0x00FF (255 LUX)// The threshold setting range is 0x0000-0x0BB8 (0~3000 LUX)
Note:
MinInterval is the sampling period for the Sensor. Sampling period >= MinInterval.
The reported data is decoded by the Netvox LoRaWANApplication Command document and
http://loraresolver.netvoxcloud.com:8888/page/index

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Device DeviceType ReportType NetvoxPayLoadData
R311B 0x4B 0x01 Battery
(1Byte, unit:0.1V)
illuminance
(2Bytes,unit:1Lux)
Reserved
(5Bytes,fixed 0x00)
Uplink: 014B011C03840000000000
1st byte (01): Version
2nd byte (4B): DeviceType 0x4B －R311B
3rd byte (01): Report Type
4th byte (1C): Battery－2.8v , 1C Hex=28 Dec 28*0.1v=2.8v
5th 6th byte (0384): illuminance－900 LUX, 384 Hex=900 Dec
7th ~ 11th byte (0000000000): Reserved
5.2 Example of ConfigureCmd
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)
(1)Command Configuration:
MinTime = 1min、MaxTime = 1min、BatteryChange = 0.1v、IlluminanceThreshold= 200 lux
Downlink：014B003C003C0100C80000 003C(Hex) = 60(Dec) , C8(Hex) = 200(Dec)
Response：
814B000000000000000000 (Configuration success)
814B010000000000000000 (Configuration failure)
Description Device CmdID Device
Type NetvoxPayLoadData
Config
ReportReq
R311B
0x01
0x4B
MinTime
(2bytes Unit:s) MaxTime (2bytes Unit:s) BatteryChange (1byte Unit:0.1v) Illuminancethreshold (2bytes Unit：1Lux) Reserved (2Bytes,Fixed 0x00)
Config
ReportRsp 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) Illuminancethreshold (2bytes Unit：1Lux) Reserved (2Bytes,Fixed 0x00)

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(2)Read Configuration:
Downlink：024B000000000000000000
Response：
824B003C003C0100C80000（Current configuration）
5.3 Example for MinTime/MaxTime logic
Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V
Max Time Max Time
Sleeping (Min Time) Sleeping (Min Time)
1H 2H 3H
Note:
MaxTime=MinTime. Data will only be report according to MaxTime (MinTime) duration regardless BatteryVoltageChange
value.
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 2H
Wakes up and
collects data
2.8V
Does not report
Wakes up and
collects data
REPORTS 2.8V
Wakes up and
collects data
REPORT 2.8V
Wake up and
collects data
REPORTS 2.8V
Wakes up and
collects data
REPORTS 2.8V
Wakes up and
collects data
REPORTS 2.8V
Wakes up and
collects data
2.8V
Does not report
Wakes up and
collects data
2.8V
Does not report

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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 change value 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 to set 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.
5.4 Difference between R311B and R311G
Wakes up and
collects data
REPORTS
2.8V
Wakes up and
collects data
2.7V |2.7-2.8|=0.1
REPORTS 2.7V
Wakes up and
collects data
2.7V
Does not report
Wakes up and
collects data
2.7V
Does not report
Wakes up and
collects data
2.7V
Does not report
Wakes up and
collects data 2.7V
Does not report
Wakes up and
collects data
2.7V
Does not report
Wakes up and
collects data
REPORTS
2.7V
Wakes up and
collects data
2.8V
Does not report
Users push the button,
REPORTS 2.7V.
Recalculate MaxTime.

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6. Installation
(1) This product does not have a waterproof function.After the joining is completed, please place it indoors.
(2) The dust in the installation position of the equipment needs to be wiped clean and then affixed to the equipment.
(3) The battery installation method is shown in the figure below (battery with "+" facing outward).
Note:
To install the battery, use a screwdriver or similar tool to assist in opening the battery cover.
1. Remove the 3M adhesive on the back of the light sensor and
attach the device to the position where the light value needs to
be detected (please do not stick it to a rough surface to
prevent the device from falling off after a long time).
Note:
(1)Wipe the surface clean before installation to avoid dust on
the surface and affect the adhesion of the device.
(2)Do not install the device in a metal shielded box or other
electrical equipment around it to avoid affecting the
wireless transmission of the device.
2. When the illuminance exceeds the set threshold (default is 255
LUX), a report will be sent immediately.
This figure shows the scene where the light sensor (R311B)
is applied in the office.
It can also be applied to the following scenarios:
Home
School
Storage room
Hospital
Bar
Stairs
Agricultural greenhouse
Places which need to detect the illumination value

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7. 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.