Changes for page NDDS75 -- NB-IoT Distance Detect Sensor User Manual

Last modified by Bei Jinggeng on 2024/05/31 09:53

From version < 65.12 >

edited by Xiaoling
on 2022/07/08 15:49

To version < 63.2 >

edited by Xiaoling
on 2022/07/08 14:18

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@@ -13,14 +13,11 @@
  **Table of Contents:**
--{{toc/}}
--
--
  = 1.  Introduction =
  == 1.1  What is LoRaWAN Soil Moisture & EC Sensor ==
@@ -28,21 +28,13 @@
  (((
--(((
  Dragino NSE01 is an (% style="color:blue" %)**NB-IOT soil moisture & EC sensor**(%%) for agricultural IoT. Used to measure the soil moisture of saline-alkali soil and loam. The soil sensor uses the FDR method to calculate soil moisture and compensates it with soil temperature and electrical conductivity. It has also been calibrated for mineral soil types at the factory.
--)))
--(((
  It can detect (% style="color:blue" %)**Soil Moisture, Soil Temperature and Soil Conductivity**(%%), and upload its value to the server wirelessly.
--)))
--(((
  The wireless technology used in NSE01 allows the device to send data at a low data rate and reach ultra-long distances, providing ultra-long-distance spread spectrum Communication.
--)))
--(((
  NSE01 are powered by (% style="color:blue" %)**8500mAh Li-SOCI2**(%%) batteries, which can be used for up to 5 years.
--)))
  )))
@@ -54,8 +54,9 @@
--== 1.2  Features ==
++== 1.2 Features ==
++
  * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
  * Monitor Soil Moisture
  * Monitor Soil Temperature
@@ -69,7 +69,6 @@
  * Micro SIM card slot for NB-IoT SIM
  * 8500mAh Battery for long term use
--
  == 1.3  Specification ==
@@ -87,7 +87,7 @@
  * - B20 @H-FDD: 800MHz
  * - B28 @H-FDD: 700MHz
--Probe(% style="color:#037691" %)** Specification:**
++(% style="color:#037691" %)**Probe Specification:**
  Measure Volume: Base on the centra pin of the probe, a cylinder with 7cm diameter and 10cm height.
@@ -137,9 +137,7 @@
  === 2.2.1  Test Requirement ===
--(((
  To use NSE01 in your city, make sure meet below requirements:
--)))
  * Your local operator has already distributed a NB-IoT Network there.
  * The local NB-IoT network used the band that NSE01 supports.
@@ -156,13 +156,9 @@
  === 2.2.2  Insert SIM card ===
--(((
  Insert the NB-IoT Card get from your provider.
--)))
--(((
  User need to take out the NB-IoT module and insert the SIM card like below:
--)))
  [[image:1657249468462-536.png]]
@@ -201,9 +201,7 @@
  [[image:image-20220708110657-3.png]]
--(((
  (% style="color:red" %)Note: the valid AT Commands can be found at: (%%)[[http:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
--)))
@@ -306,10 +306,10 @@
  In this mode, uplink payload includes in total 18 bytes
  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
--|=(% style="width: 60px;" %)(((
++|=(% style="width: 50px;" %)(((
  **Size(bytes)**
--)))|=(% style="width: 50px;" %)**6**|=(% style="width: 25px;" %)2|=(% style="width: 25px;" %)**2**|=(% style="width: 70px;" %)**1**|=(% style="width: 60px;" %)**2**|=(% style="width: 80px;" %)**2**|=(% style="width: 90px;" %)**2**|=(% style="width: 50px;" %)**1**
--|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:108px" %)[[Soil Moisture>>||anchor="H2.4.5A0SoilMoisture"]]|(% style="width:133px" %)[[Soil Temperature>>||anchor="H2.4.6A0SoilTemperature"]]|(% style="width:159px" %)[[Soil Conductivity(EC)>>||anchor="H2.4.7A0SoilConductivity28EC29"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.8A0DigitalInterrupt"]]
++)))|=(% style="width: 50px;" %)**6**|=(% style="width: 25px;" %)2|=(% style="width: 25px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 80px;" %)**2**|=(% style="width: 80px;" %)**2**|=(% style="width: 80px;" %)**2**|=(% style="width: 40px;" %)**1**
++|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H"]]|(% style="width:41px" %)[[Ver>>||anchor="H"]]|(% style="width:46px" %)[[BAT>>||anchor="H"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H"]]|(% style="width:108px" %)[[Soil Moisture>>||anchor="H"]]|(% style="width:133px" %)[[Soil Temperature>>||anchor="H"]]|(% style="width:159px" %)[[Soil Conductivity(EC)>>||anchor="H"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H"]]
  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSE01 uplink data.
@@ -331,7 +331,6 @@
  * Soil Conductivity(EC) = 0x02f9 =761 uS /cm
  * Interrupt: 0x00 = 0
--
  == 2.4  Payload Explanation and Sensor Interface ==
@@ -462,7 +462,7 @@
  (% style="color:blue" %)**AT+INTMOD=3 **(%%)   ~/~/(more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.**
--The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up.
++The lower four bits of this data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H"]] for the hardware and software set up.
  Example:
@@ -493,6 +493,7 @@
  [[image:image-20220708133731-5.png]]
++
  (((
  (% style="color:blue" %)**Examples:**
  )))
@@ -587,7 +587,7 @@
  [[www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/Firmware/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/Firmware/]]
--Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]]
++Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H"]]
@@ -605,7 +605,7 @@
  The battery related documents as below:
  * [[Battery Dimension>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
--* [[Lithium-Thionyl Chloride Battery datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
++* [[Lithium-Thionyl Chloride Battery>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]][[ datasheet>>https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
  * [[Lithium-ion Battery-Capacitor datasheet>>http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
  (((
@@ -675,151 +675,293 @@
  )))
  (((
--The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]]
++The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]]
  )))
--[[image:1657261278785-153.png]]
++[[image:1657261119050-993.png]]
++[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]]
--= 4.  Using the AT Commands =
--== 4.1  Access AT Commands ==
++== 3.1 Access AT Commands ==
--See this link for detail: [[http:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NSE01/>>url:http://www.dragino.com/downloads/index.php?dir=NB-IoT/NBSN50/]]
++LSE01 supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to LSE01 for using AT command, as below.
--AT+<CMD>?                    : Help on <CMD>
++[[image:1654501986557-872.png||height="391" width="800"]]
--AT+<CMD>                      : Run <CMD>
--AT+<CMD>=<value>      : Set the value
++Or if you have below board, use below connection:
--AT+<CMD>=?                  : Get the value
++[[image:1654502005655-729.png||height="503" width="801"]]
++
++
++In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for LSE01. LSE01 will output system info once power on as below:
++
++
++ [[image:1654502050864-459.png||height="564" width="806"]]
++
++
++Below are the available commands, a more detailed AT Command manual can be found at [[AT Command Manual>>https://www.dropbox.com/sh/qr6vproz4z4kzjz/AAAD48h3OyWrU1hq_Cqm8jIwa?dl=0]]: [[https:~~/~~/www.dropbox.com/sh/qr6vproz4z4kzjz/AAAD48h3OyWrU1hq_Cqm8jIwa?dl=0>>https://www.dropbox.com/sh/qr6vproz4z4kzjz/AAAD48h3OyWrU1hq_Cqm8jIwa?dl=0]]
++
++
++(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>? **(%%)                   : Help on <CMD>
++
++(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD> **(%%)                     : Run <CMD>
++
++(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>=<value>**(%%)      : Set the value
++
++(% style="background-color:#dcdcdc" %)**AT+<CMD>=?AT+<CMD>=?**(%%)                  : Get the value
++
++
  (% style="color:#037691" %)**General Commands**(%%)
--AT                            : Attention
++(% style="background-color:#dcdcdc" %)**AT**(%%)                   : Attention
--AT?                           : Short Help
++(% style="background-color:#dcdcdc" %)**AT?**(%%)                  : Short Help
--ATZ                          : MCU Reset
++(% style="background-color:#dcdcdc" %)**ATZ**(%%)                 : MCU Reset
--AT+TDC                   : Application Data Transmission Interval
++(% style="background-color:#dcdcdc" %)**AT+TDC**(%%)          : Application Data Transmission Interval
--AT+CFG                   : Print all configurations
--AT+CFGMOD           : Working mode selection
++(% style="color:#037691" %)**Keys, IDs and EUIs management**
--AT+INTMOD            : Set the trigger interrupt mode
++(% style="background-color:#dcdcdc" %)**AT+APPEUI**(%%)              : Application EUI
--AT+5VT                     : Set extend the time of 5V power
++(% style="background-color:#dcdcdc" %)**AT+APPKEY**(%%)              : Application Key
--AT+PRO                    : Choose agreement
++(% style="background-color:#dcdcdc" %)**AT+APPSKEY**(%%)            : Application Session Key
--AT+WEIGRE              : Get weight or set weight to 0
++(% style="background-color:#dcdcdc" %)**AT+DADDR**(%%)              : Device Address
--AT+WEIGAP              : Get or Set the GapValue of weight
++(% style="background-color:#dcdcdc" %)**AT+DEUI**(%%)                   : Device EUI
--AT+RXDL                   : Extend the sending and receiving time
++(% style="background-color:#dcdcdc" %)**AT+NWKID**(%%)               : Network ID (You can enter this command change only after successful network connection)
--AT+CNTFAC              : Get or set counting parameters
++(% style="background-color:#dcdcdc" %)**AT+NWKSKEY**(%%)          : Network Session Key Joining and sending date on LoRa network
--AT+SERVADDR          : Server Address
++(% style="background-color:#dcdcdc" %)**AT+CFM**(%%)                   : Confirm Mode
++(% style="background-color:#dcdcdc" %)**AT+CFS**(%%)                     : Confirm Status
--(% style="color:#037691" %)**COAP Management**
++(% style="background-color:#dcdcdc" %)**AT+JOIN**(%%)                   : Join LoRa? Network
--AT+URI            : Resource parameters
++(% style="background-color:#dcdcdc" %)**AT+NJM**(%%)                    : LoRa? Network Join Mode
++(% style="background-color:#dcdcdc" %)**AT+NJS**(%%)                     : LoRa? Network Join Status
--(% style="color:#037691" %)**UDP Management**
++(% style="background-color:#dcdcdc" %)**AT+RECV**(%%)                  : Print Last Received Data in Raw Format
--AT+CFM          : Upload confirmation mode (only valid for UDP)
++(% style="background-color:#dcdcdc" %)**AT+RECVB**(%%)                : Print Last Received Data in Binary Format
++(% style="background-color:#dcdcdc" %)**AT+SEND**(%%)                  : Send Text Data
--(% style="color:#037691" %)**MQTT Management**
++(% style="background-color:#dcdcdc" %)**AT+SENB**(%%)                  : Send Hexadecimal Data
--AT+CLIENT               : Get or Set MQTT client
--AT+UNAME             : Get or Set MQTT Username
++(% style="color:#037691" %)**LoRa Network Management**
--AT+PWD                  : Get or Set MQTT password
++(% style="background-color:#dcdcdc" %)**AT+ADR**(%%)          : Adaptive Rate
--AT+PUBTOPIC          : Get or Set MQTT publish topic
++(% style="background-color:#dcdcdc" %)**AT+CLASS**(%%)      : LoRa Class(Currently only support class A
--AT+SUBTOPIC          : Get or Set MQTT subscription topic
++(% style="background-color:#dcdcdc" %)**AT+DCS**(%%)          : Duty Cycle Setting
++(% style="background-color:#dcdcdc" %)**AT+DR**(%%)            : Data Rate (Can Only be Modified after ADR=0)
--(% style="color:#037691" %)**Information**
++(% style="background-color:#dcdcdc" %)**AT+FCD**(%%)          : Frame Counter Downlink
--AT+FDR              : Factory Data Reset
++(% style="background-color:#dcdcdc" %)**AT+FCU**(%%)          : Frame Counter Uplink
--AT+PWORD       : Serial Access Password
++(% style="background-color:#dcdcdc" %)**AT+JN1DL**(%%)      : Join Accept Delay1
++(% style="background-color:#dcdcdc" %)**AT+JN2DL**(%%)      : Join Accept Delay2
++(% style="background-color:#dcdcdc" %)**AT+PNM**(%%)        : Public Network Mode
--= 5.  FAQ =
++(% style="background-color:#dcdcdc" %)**AT+RX1DL**(%%)     : Receive Delay1
--== 5.1  How to Upgrade Firmware ==
++(% style="background-color:#dcdcdc" %)**AT+RX2DL**(%%)     : Receive Delay2
++(% style="background-color:#dcdcdc" %)**AT+RX2DR**(%%)     : Rx2 Window Data Rate
++(% style="background-color:#dcdcdc" %)**AT+RX2FQ**(%%)     : Rx2 Window Frequency
++
++(% style="background-color:#dcdcdc" %)**AT+TXP**(%%)          : Transmit Power
++
++(% style="background-color:#dcdcdc" %)**AT+ MOD**(%%)       : Set work mode
++
++
++(% style="color:#037691" %)**Information**
++
++(% style="background-color:#dcdcdc" %)**AT+RSSI**(%%)           : RSSI of the Last Received Packet
++
++(% style="background-color:#dcdcdc" %)**AT+SNR**(%%)           : SNR of the Last Received Packet
++
++(% style="background-color:#dcdcdc" %)**AT+VER**(%%)           : Image Version and Frequency Band
++
++(% style="background-color:#dcdcdc" %)**AT+FDR**(%%)           : Factory Data Reset
++
++(% style="background-color:#dcdcdc" %)**AT+PORT**(%%)        : Application Port
++
++(% style="background-color:#dcdcdc" %)**AT+CHS**(%%)          : Get or Set Frequency (Unit: Hz) for Single Channel Mode
++
++ (% style="background-color:#dcdcdc" %)**AT+CHE**(%%)         : Get or Set eight channels mode, Only for US915, AU915, CN470
++
++
++= 4. FAQ =
++
++== 4.1 How to change the LoRa Frequency Bands/Region? ==
++
  (((
--User can upgrade the firmware for 1) bug fix, 2) new feature release.
++You can follow the instructions for [[how to upgrade image>>||anchor="H2.10200BFirmwareChangeLog"]].
++When downloading the images, choose the required image file for download.
  )))
  (((
--Please see this link for how to upgrade:  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]]
++
  )))
  (((
--(% style="color:red" %)Notice, NSE01 and LSE01 share the same mother board. They use the same connection and method to update.
++How to set up LSE01 to work in 8 channel mode By default, the frequency bands US915, AU915, CN470 work in 72 frequencies. Many gateways are 8 channel gateways, and in this case, the OTAA join time and uplink schedule is long and unpredictable while the end node is hopping in 72 frequencies.
  )))
++(((
++
++)))
++(((
++You can configure the end node to work in 8 channel mode by using the AT+CHE command. The 500kHz channels are always included for OTAA.
++)))
--= 6.  Trouble Shooting =
++(((
++
++)))
--== 6.1  Connection problem when uploading firmware ==
++(((
++For example, in **US915** band, the frequency table is as below. By default, the end node will use all channels (0~~71) for OTAA Join process. After the OTAA Join, the end node will use these all channels (0~~71) to send uplink packets.
++)))
++[[image:image-20220606154726-3.png]]
--(% class="wikigeneratedid" %)
++
++When you use the TTN network, the US915 frequency bands use are:
++
++* 903.9 - SF7BW125 to SF10BW125
++* 904.1 - SF7BW125 to SF10BW125
++* 904.3 - SF7BW125 to SF10BW125
++* 904.5 - SF7BW125 to SF10BW125
++* 904.7 - SF7BW125 to SF10BW125
++* 904.9 - SF7BW125 to SF10BW125
++* 905.1 - SF7BW125 to SF10BW125
++* 905.3 - SF7BW125 to SF10BW125
++* 904.6 - SF8BW500
++
  (((
--(% style="font-size:14px" %)**Please see: **(%%)[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting||style="background-color: rgb(255, 255, 255); font-size: 14px;"]]
++Because the end node is now hopping in 72 frequency, it makes it difficult for the devices to Join the TTN network and uplink data. To solve this issue, you can access the device via the AT commands and run:
++
++* (% style="color:#037691" %)**AT+CHE=2**
++* (% style="color:#037691" %)**ATZ**
  )))
++(((
++
++to set the end node to work in 8 channel mode. The device will work in Channel 8-15 & 64-71 for OTAA, and channel 8-15 for Uplink.
++)))
--== 6.2  AT Command input doesn't work ==
++(((
++
++)))
  (((
++The **AU915** band is similar. Below are the AU915 Uplink Channels.
++)))
++
++[[image:image-20220606154825-4.png]]
++
++
++== 4.2 Can I calibrate LSE01 to different soil types? ==
++
++LSE01 is calibrated for saline-alkali soil and loamy soil. If users want to use it for other soil, they can calibrate the value in the IoT platform base on the value measured by saline-alkali soil and loamy soil. The formula can be found at [[this link>>https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/LSE01/&file=Calibrate_to_other_Soil_20220605.pdf]].
++
++
++= 5. Trouble Shooting =
++
++== 5.1 Why I can't join TTN in US915 / AU915 bands? ==
++
++It is due to channel mapping. Please see the [[Eight Channel Mode>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.19EightChannelMode"]] section above for details.
++
++
++== 5.2 AT Command input doesn't work ==
++
++(((
  In the case if user can see the console output but can't type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
  )))
++== 5.3 Device rejoin in at the second uplink packet ==
--= 7.  Order Info =
++(% style="color:#4f81bd" %)**Issue describe as below:**
++[[image:1654500909990-784.png]]
--Part Number**:** (% style="color:#4f81bd" %)**NSE01**
++(% style="color:#4f81bd" %)**Cause for this issue:**
++(((
++The fuse on LSE01 is not large enough, some of the soil probe require large current up to 5v 800mA, in a short pulse. When this happen, it cause the device reboot so user see rejoin.
++)))
++
++
++(% style="color:#4f81bd" %)**Solution: **
++
++All new shipped LSE01 after 2020-May-30 will have this to fix. For the customer who see this issue, please bypass the fuse as below:
++
++[[image:1654500929571-736.png||height="458" width="832"]]
++
++
++= 6. Order Info =
++
++
++Part Number**:** (% style="color:#4f81bd" %)**LSE01-XX-YY**
++
++
++(% style="color:#4f81bd" %)**XX**(%%)**:** The default frequency band
++
++* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band
++* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band
++* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band
++* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band
++* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band
++* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band
++* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
++* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
++
++(% style="color:#4f81bd" %)**YY**(%%)**: **Battery Option
++
++* (% style="color:red" %)**4**(%%): 4000mAh battery
++* (% style="color:red" %)**8**(%%): 8500mAh battery
++
  (% class="wikigeneratedid" %)
  (((
  )))
--= 8.  Packing Info =
++= 7. Packing Info =
  (((
  (% style="color:#037691" %)**Package Includes**:
++)))
--
--* NSE01 NB-IoT Soil Moisture & EC Sensor x 1
--* External antenna x 1
++* (((
++LSE01 LoRaWAN Soil Moisture & EC Sensor x 1
  )))
  (((
@@ -826,20 +826,24 @@
  (% style="color:#037691" %)**Dimension and weight**:
++)))
--
--* Size: 195 x 125 x 55 mm
--* Weight:   420g
++* (((
++Device Size: cm
  )))
++* (((
++Device Weight: g
++)))
++* (((
++Package Size / pcs : cm
++)))
++* (((
++Weight / pcs : g
--(((
--
--
--
  )))
--= 9.  Support =
++= 8. Support =
  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
  * Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]

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Changes for page NDDS75 -- NB-IoT Distance Detect Sensor User Manual

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