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Last modified by Mengting Qiu on 2024/09/05 17:35

From 88.1 to 88.2 From 101.8 to 101.9

From version 88.2

edited by Mengting Qiu
on 2023/09/20 17:35

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To version 101.8

edited by Xiaoling
on 2023/10/10 11:56

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Title

@@ -1,1 +1,1 @@
--DDS45-NB -- NB-IoT Distance Detection Sensor User Manual
++SW3L-NB -- NB-IoT Flow Sensor User Manual

Author

@@ -1,1 +1,1 @@
--XWiki.ting
++XWiki.Xiaoling

Content

@@ -1,5 +1,5 @@
  (% style="text-align:center" %)
--[[image:image-20230912085600-1.png||height="519" width="731"]]
++[[image:image-20231010090810-1.png||height="518" width="839"]]
@@ -8,7 +8,6 @@
--
  **Table of Contents:**
  {{toc/}}
@@ -20,38 +20,37 @@
  = 1. Introduction =
--== 1.1 What is DDS45-NB NB-IoT Distance Detection Sensor ==
++== 1.1 What is SW3L-NB NB-IoT Flow Sensor ==
--The Dragino DDS45-NB is a (% style="color:blue" %)** NB-IoT Distance Detection Sensor**(%%) for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses (% style="color:blue" %)** ultrasonic sensing technology**(%%) for distance measurement, and (% style="color:blue" %)** temperature compensation**(%%) is performed internally to improve the reliability of data. The DDS45-NB can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, bottom water level monitoring, etc.
++The Dragino SW3L-NB is a (% style="color:blue" %)**NB-IoT Flow Sensor**(%%). It detects water flow volume and uplink to IoT server via NB-IoT network. User can use this to (% style="color:blue" %)**monitor the water usage for buildings**.
--It detects the distance (% style="color:blue" %)** between the measured object and the sensor**(%%), and and send IoT platform via NB-IoT network.
++The SW3L-NB will send water flow volume every 20 minutes. It can also detect the (% style="color:blue" %)**water flow status and send Alarm**(%%), to avoid the waste for water usage such as broken toilet case.
--DDS45-NB supports different uplink methods including (% style="color:blue" %)**MQTT, MQTTs, UDP & TCP**(%%) for different application requirement, and support uplinks to various IoT Servers.
++SW3L-NB is designed for both indoor and outdoor use. It has a weatherproof enclosure and industrial level battery to (% style="color:blue" %)**work in low to high temperatures**.
--DDS45-NB (% style="color:blue" %)**supports BLE configure **(%%)and(% style="color:blue" %)** OTA update**(%%) which make user easy to use.
++SW3L-NB supports different uplink methods including (% style="color:blue" %)**MQTT, MQTTs, UDP & TCP**(%%) for different application requirement, and support uplinks to various IoT Servers.
--DDS45-NB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long-term use up to severa years.
++SW3L-NB (% style="color:blue" %)**supports BLE configure **(%%)and(% style="color:blue" %)** OTA update**(%%) which make user easy to use.
--DDS45-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
++SW3L-NB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long-term use up to several years.
--[[image:image-20230912102813-2.png||height="320" width="923"]]
++SW3L-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
++[[image:image-20231010091546-2.png||height="348" width="909"]]
++
  == 1.2 Features ==
  * NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
  * Ultra-low power consumption
--* Distance Detection by Ultrasonic technology
--* Flat object range 30mm - 4500mm
--* Accuracy: ±(1cm+S*0.3%) (S: Distance)
--* Measure Angle: 60°
++* Upload water flow volume
++* Monitor water waste
  * Multiply Sampling and one uplink
  * Support Bluetooth v5.1 remote configure and update firmware
  * Uplink on periodically
  * Downlink to change configure
--* IP66 Waterproof Enclosure
  * 8500mAh Battery for long term use
  * Nano SIM card slot for NB-IoT SIM
@@ -100,65 +100,40 @@
  * STOP Mode: 10uA @ 3.3v
  * Max transmit power: 350mA@3.3v
--== 1.4 Rated environmental conditions ==
++(% class="wikigeneratedid" id="H1.4Ratedenvironmentalconditions" %)
++(% style="display:none" %) (%%)
++== 1.4 Flow Sensor Spec ==
--(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
--|(% style="background-color:#4f81bd; color:white; width:163px" %)**Item**|(% style="background-color:#4f81bd; color:white; width:90px" %)**Minimum value**|(% style="background-color:#4f81bd; color:white; width:70px" %)**Typical value**|(% style="background-color:#4f81bd; color:white; width:87px" %)**Maximum value**|(% style="background-color:#4f81bd; color:white; width:40px" %)**Unit**|(% style="background-color:#4f81bd; color:white; width:50px" %)**Remarks**
--|(% style="width:174px" %)Storage temperature|(% style="width:86px" %)-25|(% style="width:66px" %)25|(% style="width:90px" %)80|(% style="width:48px" %)℃|(% style="width:203px" %)
--|(% style="width:174px" %)Storage humidity|(% style="width:86px" %) |(% style="width:66px" %)65%|(% style="width:90px" %)90%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
--|(% style="width:174px" %)Operating temperature|(% style="width:86px" %)-15|(% style="width:66px" %)25|(% style="width:90px" %)60|(% style="width:48px" %)℃|(% style="width:203px" %)
--|(% style="width:174px" %)Working humidity|(% style="width:86px" %)(((
--
--
--)))|(% style="width:66px" %)65%|(% style="width:90px" %)80%|(% style="width:48px" %)RH|(% style="width:203px" %)(1)
--
  (((
--(% style="color:red" %)**Remarks: (1)  a. When the ambient temperature is 0-39 ℃, the maximum humidity is 90% (non-condensing);       **
--
--(% style="color:red" %)**                       b. When the ambient temperature is 40-50 ℃, the highest humidity is the highest humidity in the natural world at the current temperature (no condensation)**
--
--
++(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
++|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**Model**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**Probe**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**Diameter**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**Range**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**Max Pressure**|=(% style="width: 110px;background-color:#D9E2F3;color:#0070C0" %)**Measure**
++|(% style="width:88px" %)SW3L-004|(% style="width:75px" %)DW-004|(% style="width:107px" %)G1/2" /DN15|(% style="width:101px" %)1~~30L/min|(% style="width:116px" %)≤ 2.0Mpa|(% style="width:124px" %)450 pulse = 1 L
++|(% style="width:88px" %)SW3L-006|(% style="width:75px" %)DW-006|(% style="width:107px" %)G3/4" /DN20|(% style="width:101px" %)1~~60L/min|(% style="width:116px" %)≤ 1.2Mpa|(% style="width:124px" %)390 pulse = 1 L
++|(% style="width:88px" %)SW3L-010|(% style="width:75px" %)DW-010|(% style="width:107px" %)G 1" /DN25|(% style="width:101px" %)2~~100L/min|(% style="width:116px" %)≤ 2.0Mpa|(% style="width:124px" %)64 pulse = 1 L
  )))
--== 1.5 Effective measurement range Reference beam pattern ==
++== 1.5 Applications ==
--(% style="color:blue" %)**1. The tested object is a white cylindrical tube made of PVC, with a height of 100cm and a diameter of 7.5cm.**
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852253176-749.png?rev=1.1||alt="1654852253176-749.png"]]
++* Flow Sensor application
++* Water Control
++* Toilet Flow Sensor
++* Monitor Waste water
++== 1.6 Sleep mode and working mode ==
--(% style="color:blue" %)**2. The object to be tested is a "corrugated cardboard box" perpendicular to the central axis of 0 °, and the length * width is 60cm * 50cm.**
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654852175653-550.png?rev=1.1||alt="1654852175653-550.png"]]
++(% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any NB-IoT activate. This mode is used for storage and shipping to save battery life.
++(% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as NB-IoT Sensor to Join NB-IoT network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
--== 1.6 Applications ==
++== 1.7 Button & LEDs ==
--* Horizontal distance measurement
--* Liquid level measurement
--* Parking management system
--* Object proximity and presence detection
--* Intelligent trash can management system
--* Robot obstacle avoidance
--* Automatic control
--* Sewer
--* Bottom water level monitoring
--== 1.7 Sleep mode and working mode ==
--
--
--(% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.
--
--(% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.
--
--
--== 1.8 Button & LEDs ==
--
--
  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
@@ -175,7 +175,7 @@
  )))
  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
--== 1.9 BLE connection ==
++== 1.8 BLE connection ==
  DDS45-NB support BLE remote configure and firmware update.
@@ -190,7 +190,7 @@
  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
--== 1.10 Pin Definitions & Switch ==
++== 1.9 Pin Definitions & Switch ==
  [[image:image-20230819104805-5.png]]
@@ -227,14 +227,27 @@
  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675143909447-639.png?rev=1.1||alt="1675143909447-639.png"]]
--(% style="color:blue" %)**Probe Mechanical:**
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS45%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654915562090-396.png?rev=1.1||alt="1654915562090-396.png"]]
++**Probe Mechanical:**
++(% style="color:blue" %)**DW-004 Flow Sensor: diameter: G1/2” / DN15.  450 pulse = 1 L**
--= 2. Use DDS45-NB to communicate with IoT Server =
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519091350-1.png?width=722&height=385&rev=1.1||alt="image-20220519091350-1.png"]]
++
++(% style="color:blue" %)**006: DW-006 Flow Sensor: diameter: G3/4” / DN20.  390 pulse = 1 L**
++
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519091423-2.png?width=723&height=258&rev=1.1||alt="image-20220519091423-2.png"]]
++
++
++(% style="color:blue" %)**010: DW-010 Flow Sensor: diameter: G 1” / DN25.   64 pulse = 1 L**
++
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L%20LoRaWAN%20Outdoor%20Flow%20Sensor/WebHome/image-20220519091423-3.png?width=724&height=448&rev=1.1||alt="image-20220519091423-3.png"]]
++
++
++= 2. Use SW3L-NB to communicate with IoT Server =
++
  == 2.1 Send data to IoT server via NB-IoT network ==
@@ -243,7 +243,7 @@
  Below shows the network structure:
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS45-NB_NB-IoT_Distance_Detection_Sensor_User_Manual/WebHome/image-20230912102813-2.png?width=923&height=320&rev=1.1||alt="image-20230912102813-2.png"]]
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SW3L-NB_NB-IoT_Flow_Sensor_User_Manual/WebHome/image-20231010091546-2.png?width=909&height=348&rev=1.1||alt="image-20231010091546-2.png"]]
  There are two version: (% style="color:blue" %)**-GE**(%%) and (% style="color:blue" %)**-1D**(%%) version of DDS45-NB.
@@ -311,14 +311,17 @@
  This is the General Json Format. As below:
--(% style="color:#4472c4" %)**{"IMEI":866207053462762,"temperature":29.2,"humidity":54.2,"battery":3.27,"signal":24,"Model":DDS45-NB, "1":{28.2,48.3,2023/08/10 08:00:37},"2":{28.1,49.1,2023/08/10 07:57:37},"3":{28.1,48.5,2023/08/10 07:54:37},"4":{28.2,48.6,2023/08/10 07:51:37},"5":{28.1,48.9,2023/08/10 07:48:37},"6":{28.2,48.8,2023/08/10 07:45:37},"7":{28.2,48.8,2023/08/10 07:42:37},"8":{28.0,48.8,2023/08/10 07:39:37}}**
++(% style="color:#4472c4" %)**{"IMEI":"866207058378443","Model":"DDS45-NB","distance":217,"battery":3.54,"signal":24,"1":{221,2023/09/20 09:47:01},"2":{0,2023/09/20 09:15:04},"3":{0,2023/09/20 09:00:04},"4":{0,2023/09/20 08:45:03},"5":{0,2023/09/20 08:30:03},"6":{0,2023/09/20 08:15:03},"7":{0,2023/09/20 08:00:04},"8":{0,2023/09/20 07:45:04}}**
++[[image:image-20230920175015-3.png||height="613" width="890"]]
++
++
  (% style="color:red" %)**Notice, from above payload:**
--* Temperature , Humidity , Battery & Signal are the value at uplink time.
++* Distance , Battery & Signal are the value at uplink time.
--* Json entry 1 ~~ 8 are the last 1 ~~ 8 sampling data as specify by (% style="color:#037691" %)**AT+NOUD=8 ** (%%)Command. Each entry includes (from left to right): Temperature, Humidity, Sampling time.
++* Json entry 1 ~~ 8 are the last 1 ~~ 8 sampling data as specify by (% style="color:#037691" %)**AT+NOUD=8 ** (%%)Command. Each entry includes (from left to right): Distance, Sampling time.
  === 2.2.2 HEX format Payload(Type~=0) ===
@@ -327,25 +327,26 @@
  (% style="color:#4472c4" %)**f8662070583784430b640dda15010003a4650abc400000650ab8180000650ab4940000650ab10f0000650aad8b0000650aaa070000650aa6840000650aa3000000650a9308**
--[[image:image-20230920172200-1.png||height="198" width="1085"]]
++[[image:image-20230920172200-1.png||height="191" width="1047"]]
  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.
--[[image:image-20230920173352-2.png||height="700" width="1012"]]
++[[image:image-20230920173352-2.png||height="636" width="919"]]
++
  (% style="color:blue" %)**Version:**
  These bytes include the hardware and software version.
--(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for DDS45-NB
++(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x0b for DDS45-NB
--(% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 100
++(% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 1.0.0
  (% style="color:blue" %)**BAT (Battery Info):**
--Ex1: 0x0CBA = 3258mV
++Ex1: 0x0dda = 3546mV
  (% style="color:blue" %)**Signal Strength:**
@@ -352,7 +352,7 @@
  NB-IoT Network signal Strength.
--**Ex1: 0x16 = 22**
++**Ex1: 0x15 = 21**
  **0**        -113dBm or less
@@ -365,33 +365,44 @@
  **99**      Not known or not detectable
--(% style="color:blue" %)**TimeStamp:   **
++(% style="color:blue" %)**Distance:  **
--Unit TimeStamp Example: 64d49439(H) = 1691653177(D)
++Ex1: 0x03a4 = 932 mm
--Put the decimal value into this link(https:~/~/www.epochconverter.com/) to get the time.
++(% style="color:blue" %)**Timestamp:   **
++Unit Timestamp Example: 650abc40(H) = 1695202368(D)
++
++Put the decimal value into this link([[https:~~/~~/www.epochconverter.com)>>https://www.epochconverter.com]]) to get the time.
++
++
  === 2.2.3 ThingsBoard Payload(Type~=3) ===
  Type3 payload special design for ThingsBoard, it will also configure other default server to ThingsBoard.
--(% style="color:#4472c4" %)**{"IMEI":866207053462762,"temperature":29.2,"humidity":54.2,"battery":3.27,"signal":24}**
++(% style="color:#4472c4" %)** {"IMEI": "866207058378443","Model": "DDS45-NB","distance": 502,"battery": 3.57,"signal": 23}**
++[[image:image-20230922094043-2.png||height="558" width="851"]]
++
++===   ===
++
  === 2.2.4 ThingSpeak Payload(Type~=1) ===
--This payload meets ThingSpeak platform requirement. It includes only four fields. Form 1~~4 are:
++This payload meets ThingSpeak platform requirement. It includes only four fields. Form 1~~3 are:
--Temperature, Humidity, Battery & Signal. This payload type only valid for ThingsSpeak Platform
++Distance, Battery & Signal. This payload type only valid for ThingsSpeak Platform
  As below:
--(% style="color:#4472c4" %)**field1=27.9&field2=49.9&field3=3.23&field4=28**
++(% style="color:#4472c4" %)**field1=Distance value&field2=Battery value&field3=Singal value**
++[[image:image-20230921104741-1.png||height="565" width="826"]]
++
  == 2.3  Uplink Payload ==
@@ -400,21 +400,28 @@
  )))
  (((
--Uplink payload includes in total 8 bytes.
++Uplink payload includes in total 21 bytes.
  )))
  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
--|=(% style="width: 95px; background-color:#4F81BD;color:white" %)Size(bytes)|=(% style="width: 61px; background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)1|=(% style="background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)1
--|(% style="width:95px" %)Value|(% style="width:61px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(((
--[[Distance>>||anchor="H2.3.2A0Distance"]]
--(unit: mm)
--)))|[[Digital Interrupt (Optional)>>||anchor="H2.3.3A0InterruptPin"]]|(((
--[[Temperature (Optional)>>||anchor="H2.3.4A0DS18B20Temperaturesensor"]]
--)))|[[Sensor Flag>>||anchor="H2.3.5A0SensorFlag"]]
++|=(% style="width: 95px; background-color:#4F81BD;color:white" %)Size(bytes)|=(% style="width: 61px; background-color:#4F81BD;color:white" %)8|=(% style="width: 61px; background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)1|=(% style="background-color: rgb(79, 129, 189); color: white; width: 49px;" %)1|=(% style="background-color: rgb(79, 129, 189); color: white; width: 79px;" %)1|=(% style="background-color:#4F81BD;color:white" %)2|=(% style="background-color:#4F81BD;color:white" %)4
++|(% style="width:95px" %)Value|(% style="width:61px" %)f+IMEI|(% style="width:61px" %)Ver|(% style="width:61px" %)[[BAT>>||anchor="H2.3.1A0BatteryInfo"]]|(% style="width:61px" %)(((
++Singal
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DDS20-LB_LoRaWAN_Ultrasonic_Liquid_Level_Sensor_User_Manual/WebHome/%E5%BE%AE%E4%BF%A1%E6%88%AA%E5%9B%BE_20230702135733.png?width=964&height=215&rev=1.1||alt="微信截图_20230702135733.png"]]
++Strength
++)))|(% style="width:49px" %)Mod|(% style="width:79px" %)[[Digital Interrupt >>||anchor="H2.3.2A0Interrupt"]]|(% style="width:61px" %)[[Distance>>||anchor="H2.3.3A0Distance"]](unit: mm)|(% style="width:61px" %)(((
++Timestamp
++
++)))
++If the cache upload mechanism is turned on, you will receive the payload shown in the figure below.
++
++(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:512px" %)
++|(% style="width:115px" %)**Frame header**|(% style="width:118px" %)**Frame data(1)**|(% style="width:116px" %)**Frame data(2)**|(% style="width:39px" %)**F…**|(% style="width:117px" %)**Frame data(X)**
++
++===   ===
++
  === 2.3.1  Battery Info ===
@@ -425,26 +425,9 @@
  Ex2: 0x0B49 = 2889mV
--=== 2.3.2  Distance ===
++=== 2.3.2  Interrupt ===
--(((
--Get the distance. Flat object range 30mm - 4500mm.
--)))
--
--(((
--For example, if the data you get from the register is **0x0B 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
--
--(% style="color:blue" %)**0B05(H) = 2821 (D) = 2821 mm.**
--)))
--
--* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
--
--* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
--
--=== 2.3.3  Interrupt Pin ===
--
--
  This data field shows if this packet is generated by interrupt or not.
  **Example:**
@@ -454,28 +454,24 @@
 x01: Interrupt Uplink Packet.
--=== 2.3.4  DS18B20 Temperature sensor ===
++=== 2.3.3  Distance ===
--This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
++(((
++Get the distance. Flat object range 30mm - 4500mm.
++)))
--**Example**:
++(((
++For example, if the data you get from the register is **0x0B 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
--If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
++(% style="color:blue" %)**0B05(H) = 2821 (D) = 2821 mm.**
++)))
--If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
++* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
++* If the sensor value lower than 0x001E (30mm), the sensor value will be 0x00.
--=== 2.3.5  Sensor Flag ===
--
--
  (((
--0x01: Detect Ultrasonic Sensor
--)))
--
--(((
--0x00: No Ultrasonic Sensor
--
  )))
@@ -494,7 +494,7 @@
  == 2.5 Multi-Samplings and One uplink ==
--To save battery life, DDS45-NB will sample temperature & humidity data every 15 minutes and send one uplink every 2 hours. So each uplink it will include 8 stored data + 1 real-time data. They are defined by:
++To save battery life, DDS45-NB will sample Distance data every 15 minutes and send one uplink every 2 hours. So each uplink it will include 8 stored data + 1 real-time data. They are defined by:
  * (% style="color:#037691" %)**AT+TR=900**   (%%)     ~/~/ The unit is seconds, and the default is to record data once every 900 seconds (15 minutes, the minimum can be set to 180 seconds)

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