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

From 84.6 to 84.7 From 84.26 to 84.27

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edited by Xiaoling
on 2023/09/11 14:54

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edited by Xiaoling
on 2023/09/11 18:31

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@@ -16,19 +16,19 @@
  == 1.1 What is DDS20-NB NB-IoT Ultrasonic liquid level Sensor ==
--The Dragino DDS20-NB is a **NB-IoT Ultrasonic liquid level sensor** for Internet of Things solution. It uses **none-contact method **to measure the **height of liquid** in a container without opening the container, and send IoT platform via NB-IoT network.
++The Dragino DDS20-NB is a (% style="color:blue" %)**NB-IoT Ultrasonic liquid level sensor**(%%) for Internet of Things solution. It uses (% style="color:blue" %)**none-contact method **(%%)to measure the (% style="color:blue" %)**height of liquid**(%%) in a container without opening the container, and send IoT platform via NB-IoT network.
  The DDS20-NB sensor is installed directly below the container to detect the height of the liquid level. User doesn't need to open a hole on the container to be tested. The none-contact measurement makes the measurement safety, easier and possible for some strict situation.
--DDS20-NB uses **ultrasonic sensing technology** for distance measurement. DDS20-NB is of high accuracy to measure various liquid such as: **toxic substances**, **strong acids**, **strong alkalis** and **various pure liquids** in high-temperature and high-pressure airtight containers.
++DDS20-NB uses (% style="color:blue" %)**ultrasonic sensing technology**(%%) for distance measurement. DDS20-NB is of high accuracy to measure various liquid such as: (% style="color:blue" %)**toxic substances**, **strong acids**, **strong alkalis**(%%) and (% style="color:blue" %)**various pure liquids**(%%) in high-temperature and high-pressure airtight containers.
--PS-NB-NA supports different uplink methods including **MQTT, MQTTs, UDP & TCP** for different application requirement, and support uplinks to various IoT Servers.
++DDS20-NB supports different uplink methods including (% style="color:blue" %)**MQTT, MQTTs, UDP & TCP**(%%) for different application requirement, and support uplinks to various IoT Servers.
--PS-NB-NA **supports BLE configure **and** OTA update** which make user easy to use.
++DDS20-NB (% style="color:blue" %)**supports BLE configure **(%%)and(% style="color:blue" %)** OTA update**(%%) which make user easy to use.
--PS-NB-NA is powered by **8500mAh Li-SOCI2 battery**, it is designed for long-term use up to severa years.
++DDS20-NB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long-term use up to severa years.
--PS-NB-NA has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
++DDS20-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.
  [[image:image-20230911140426-2.png||height="320" width="951"]]
@@ -51,6 +51,8 @@
  * 8500mAh Battery for long term use
  * Nano SIM card slot for NB-IoT SIM
++
++
  == 1.3 Specification ==
@@ -96,6 +96,8 @@
  * STOP Mode: 10uA @ 3.3v
  * Max transmit power: 350mA@3.3v
++
++
  == 1.4 Suitable Container & Liquid ==
@@ -106,6 +106,8 @@
  ** Pure non metal material: <10 mm
  * Pure liquid without irregular deposition.
++
++
  (% style="display:none" %)
  == 1.5 Install DDS20-NB ==
@@ -192,7 +192,7 @@
  Reset DDS20-NB and see if the BLUE LED is slowly blinking.
  )))
--[[image:image-20230809172509-1.png]]
++[[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/image-20230809172509-1.png?rev=1.1||alt="image-20230809172509-1.png"]]
  (((
  (% style="color:red" %)**Note :**(% style="color:red; display:none" %)** **
@@ -212,6 +212,8 @@
  * Smart liquefied gas solution
++
++
  == 1.7 Precautions ==
@@ -252,6 +252,8 @@
  )))
  |(% 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.
++
++
  == 1.10 BLE connection ==
@@ -295,8 +295,25 @@
  (% style="display:none" %)
--= 2. Use S31-NB to communicate with IoT Server =
++== 1.12 Mechanical ==
++
++[[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/1675143884058-338.png?rev=1.1||alt="1675143884058-338.png"]]
++
++[[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/1675143899218-599.png?rev=1.1||alt="1675143899218-599.png"]]
++
++[[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/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615090910-1.png?rev=1.1||alt="image-20220615090910-1.png"]]
++
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/image-20220615090910-2.png?rev=1.1||alt="image-20220615090910-2.png"]]
++
++
++= 2. Use DDS20-NB to communicate with IoT Server =
++
  == 2.1 Send data to IoT server via NB-IoT network ==
@@ -382,6 +382,8 @@
  * 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.
++
++
  === 2.2.2 HEX format Payload(Type~=0) ===
@@ -396,7 +396,7 @@
  These bytes include the hardware and software version.
--(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for S31B-NB & S31-NB
++(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x00 for DDS20-NB
  (% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 100
@@ -423,20 +423,6 @@
  **99**      Not known or not detectable
--(% style="color:blue" %)**Temperature: **
--
--If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
--
--If payload is: FF3FH :  (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
--
--(FF3F & 8000: Judge whether the highest bit is 1, when the highest bit is 1, it is negative)
--
--
--(% style="color:blue" %)**Humidity:   **
--
--Read:0295(H)=661(D)    Value:  661 / 10=66.1, So 66.1%
--
--
  (% style="color:blue" %)**TimeStamp:   **
  Unit TimeStamp Example: 64d49439(H) = 1691653177(D)
@@ -464,60 +464,125 @@
  (% style="color:#4472c4" %)**field1=27.9&field2=49.9&field3=3.23&field4=28**
--== 2.3 Test Uplink and Change Update Interval ==
++== 2.3  Uplink Payload ==
--By default, Sensor will send uplinks (% style="color:blue" %)**every 2 hours**(%%) & AT+NOUD=8
++(((
++DDS20-NB will uplink payload via LoRaWAN with below payload format:
++)))
--User can use below commands to change the (% style="color:blue" %)**uplink interval**.
++(((
++Uplink payload includes in total 8 bytes.
++)))
--(% style="color:#037691" %)**AT+TDC=600 ** (%%)      ~/~/ Set Update Interval to 600s
++(% 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"]]
--User can also push the button for more than 1 seconds to activate an uplink.
++[[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"]]
--== 2.4 Multi-Samplings and One uplink ==
++=== 2.3.1  Battery Info ===
--To save battery life, S31-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:
++Check the battery voltage for DDS20-NB.
--* (% 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)
++Ex1: 0x0B45 = 2885mV
--* (% style="color:#037691" %)**AT+NOUD=8**     (%%)~/~/  The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
++Ex2: 0x0B49 = 2889mV
--The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
--[[image:1692424376354-959.png]]
++=== 2.3.2  Distance ===
--== 2.5 Humidity and Temperature alarm function ==
++(((
++Get the distance. Flat object range 20mm - 2000mm.
++)))
++(((
++For example, if the data you get from the register is **0x06 0x05**, the distance between the sensor and the measured object is(% style="color:#4472c4" %)** **
--On each sampling define by AT+TR ( default 900s or 15 minutes), when the value exceed the range, it will trigger an Alarm and immediately sends a uplink.
++(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
++)))
++* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
--(% style="color:blue" %)**AT Commands:**
++* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
--(% style="color:#037691" %)**AT+ SHHUM=min,max**
--Example: AT+ SHHUM=50,80     ~/~/ Alarm when humidity lower than 50 or higher than 80.
++=== 2.3.3  Interrupt Pin ===
--(% style="color:#037691" %)**AT+ SHTEMP=min,max**
--Example: AT+ SHTEMP=20,30   ~/~/ Alarm when temperature lower than 20 or higher than 30
++This data field shows if this packet is generated by interrupt or not.
++**Example:**
--(% style="color:red" %)**Notice:**
++0x00: Normal uplink packet.
--* To disable Alarm, user can set min and max to same value , such as (% style="color:#037691" %)**AT+SHTEMP=0,0.**
++0x01: Interrupt Uplink Packet.
--* If user only want to send only min or max, user can set the alarm to a value that device won’t reach. For example: (% style="color:#037691" %)**AT+SHTEMP=-80,0.**
++=== 2.3.4  DS18B20 Temperature sensor ===
++
++
++This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
++
++**Example**:
++
++If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
++
++If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
++
++
++=== 2.3.5  Sensor Flag ===
++
++
++(((
++0x01: Detect Ultrasonic Sensor
++)))
++
++(((
++0x00: No Ultrasonic Sensor
++
++
++)))
++
++== 2.4 Test Uplink and Change Update Interval ==
++
++
++By default, Sensor will send uplinks (% style="color:blue" %)**every 2 hours**(%%) & AT+NOUD=8
++
++User can use below commands to change the (% style="color:blue" %)**uplink interval**.
++
++(% style="color:#037691" %)**AT+TDC=600 ** (%%)      ~/~/ Set Update Interval to 600s
++
++User can also push the button for more than 1 seconds to activate an uplink.
++
++
++== 2.5 Multi-Samplings and One uplink ==
++
++
++To save battery life, DDS20-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:
++
++* (% 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)
++
++* (% style="color:#037691" %)**AT+NOUD=8**     (%%)~/~/  The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
++
++The diagram below explains the relationship between TR, NOUD, and TDC more clearly:
++
++[[image:1692424376354-959.png]]
++
++
  == 2.6 Trggier an uplink by external interrupt ==
--S31-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
++DDS20-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.
  (% style="color:blue" %)**AT command:**
@@ -531,17 +531,21 @@
  * (% style="color:#037691" %)**AT+INTMOD=3  **(%%)  ~/~/ Trigger by rising edge
--= 3. Configure S31x-NB =
++
++= 3. Configure DDS20-NB =
++
  == 3.1 Configure Methods ==
--S31x-NB supports below configure method:
++DDS20-NB supports below configure method:
  * AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].
  * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
++
++
  == 3.2 AT Commands Set ==
@@ -625,7 +625,7 @@
  = 4. Battery & Power Consumption =
--S31x-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
++DDS20-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
  [[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .
@@ -639,7 +639,7 @@
  * Fix bugs.
--Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/fhb3uyl4gt6clru/AAAiZVTFcxrfE1JOOyfcgO9ha?dl=0]]**
++Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/nyzeu0lf0amcaek/AAC6UZrqyTcAyJgXOH7l9F9Ka?dl=0]]**
  Methods to Update Firmware:
@@ -647,6 +647,8 @@
  * Update through UART TTL interface : **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
++
++
  = 6. FAQ =
  == 6.1 How can I access t BC660K-GL AT Commands? ==
@@ -657,11 +657,24 @@
  [[See BC660K-GL AT Command set>>url:https://www.dropbox.com/sh/5f6ssda5fum8rvs/AABT68l8ZzWOvZ5eg2qwOoFda?dl=0]]
--= 7. Order Info =
++= 7.  Trouble Shooting =
++== 7.1  Why i always see 0x0000 or 0 for the distance value? ==
--Part Number: (% style="color:blue" %)**S31-NB-XX  / S31B-NB-XX**
++(((
++DDS20-NB has a strict [[**installation requirement**>>||anchor="H1.5A0InstallDDS20-NB"]]. Please make sure the installation method exactly follows up with the installation requirement. Otherwise, the reading might be always 0x00.
++
++If you have followed the instruction requirement exactly but still see the 0x00 reading issue, please. please double-check the decoder, you can check the raw payload to verify.
++
++
++)))
++
++= 8. Order Info =
++
++
++Part Number: (% style="color:blue" %)**DDS20-NB-XX**
++
  (% style="color:red" %)**XX**(%%):
  * (% style="color:#037691" %)**GE**(%%): General version ( Exclude SIM card)
@@ -671,12 +671,12 @@
  (% style="color:#037691" %)**1NCE SIM Card NB-IoT network coverage**(%%): Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Finland, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Latvia, Malta, Netherlands, Norway, Puerto Rico, Russia, Slovak , Republic, Slovenia, Spain, Sweden, Switzerland, Taiwan, USA, US Virgin Islands
--= 8. Packing Info =
++= 9. Packing Info =
  (% style="color:#037691" %)**Package Includes**:
--* S31-NB or S31-NB NB-IoT Sensor Node x 1
++* DDS20-NB NB-IoT Ultrasonic liquid level sensor x 1
  * External antenna x 1
@@ -690,9 +690,11 @@
  * Weight / pcs : 180g
--= 9. Support =
++= 10. 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.cc>>mailto:Support@dragino.cc]].

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