Changes for page DS20L -- LoRaWAN Smart Distance Detector User Manual 01

Last modified by Mengting Qiu on 2023/12/14 11:15

From 80.3 to 80.2 From 92.1 to 91.1

From version 91.1

edited by Saxer Lin
on 2023/08/05 10:39

Change comment: Uploaded new attachment "image-20230805103904-1.png", version {1}

To version 80.3

edited by Xiaoling
on 2023/06/14 15:53

Change comment: There is no comment for this version

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

Content

@@ -35,7 +35,7 @@
  Each LDS12-LB is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local LoRaWAN server and it will auto connect after power on.
--[[image:image-20230615152941-1.png||height="459" width="800"]]
++[[image:image-20230613140115-3.png||height="453" width="800"]]
  == 1.2 Features ==
@@ -44,18 +44,19 @@
  * LoRaWAN 1.0.3 Class A
  * Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
  * Ultra-low power consumption
--* Laser technology for distance detection
--* Measure Distance: 0.1m~~12m @ 90% Reflectivity
--* Accuracy :  ±5cm@(0.1-6m), ±1%@(6m-12m)
--* Monitor Battery Level
++* Liquid Level Measurement by Ultrasonic technology
++* Measure through container, No need to contact Liquid
++* Valid level range 20mm - 2000mm
++* Accuracy: ±(5mm+S*0.5%) (S: Measure Value)
++* Cable Length : 25cm
  * Support Bluetooth v5.1 and LoRaWAN remote configure
  * Support wireless OTA update firmware
  * AT Commands to change parameters
  * Downlink to change configure
++* IP66 Waterproof Enclosure
  * 8500mAh Battery for long term use
--
  == 1.3 Specification ==
@@ -64,23 +64,6 @@
  * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
  * Operating Temperature: -40 ~~ 85°C
--(% style="color:#037691" %)**Probe Specification:**
--
--* Storage temperature：-20℃~~75℃
--* Operating temperature : -20℃~~60℃
--* Measure Distance:
--** 0.1m ~~ 12m @ 90% Reflectivity
--** 0.1m ~~ 4m @ 10% Reflectivity
--* Accuracy : ±5cm@(0.1-6m), ±1%@(6m-12m)
--* Distance resolution : 5mm
--* Ambient light immunity : 70klux
--* Enclosure rating : IP65
--* Light source : LED
--* Central wavelength : 850nm
--* FOV : 3.6°
--* Material of enclosure : ABS+PC
--* Wire length : 25cm
--
  (% style="color:#037691" %)**LoRa Spec:**
  * Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
@@ -102,23 +102,137 @@
  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
++== 1.4 Suitable Container & Liquid ==
--== 1.4 Applications ==
++* Solid Wall container such as: steel, iron, glass, ceramics, non-foaming plastics etc.
++* Container shape is regular, and surface is smooth.
++* Container Thickness:
++** Pure metal material.  2~~8mm, best is 3~~5mm
++** Pure non metal material: <10 mm
++* Pure liquid without irregular deposition.
--* Horizontal distance measurement
--* Parking management system
--* Object proximity and presence detection
--* Intelligent trash can management system
--* Robot obstacle avoidance
--* Automatic control
--* Sewer
++(% style="display:none" %)
++== 1.5 Install DDS20-LB ==
++
++(% style="color:blue" %)**Step 1**(%%):  ** Choose the installation point.**
++
++DDS20-LB (% style="color:red" %)**MUST**(%%) be installed on the container bottom middle position.
++
++[[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-20220615091045-3.png?rev=1.1||alt="image-20220615091045-3.png"]]
++
++
++(((
++(% style="color:blue" %)**Step 2**(%%):   **Polish the installation point.**
++)))
++
++(((
++For Metal Surface with paint, it is important to polish the surface, first use crude sand paper to polish the paint level , then use exquisite sand paper to polish the metal level to make it shine & smooth.
++)))
++
++[[image:image-20230613143052-5.png]]
++
++
++No polish needed if the container is shine metal surface without paint or non-metal container.
++
++[[image:image-20230613143125-6.png]]
++
++
++(((
++(% style="color:blue" %)**Step3:   **(%%)**Test the installation point.**
++)))
++
++(((
++Power on DDS20-LB, check if the blue LED is on, If the blue LED is on, means the sensor works. Then put ultrasonic coupling paste on the sensor and put it tightly on the installation point.
++)))
++
++(((
++It is necessary to put the coupling paste between the sensor and the container, otherwise DDS20-LB won't detect the liquid level.
++)))
++
++(((
++After paste the DDS20-LB well, power on DDS20-LB. In the first 30 seconds of booting, device will check the sensors status and BLUE LED will show the status as below. After 30 seconds, BLUE LED will be off to save battery life.
++)))
++
++
++(((
++(% style="color:blue" %)**LED Status:**
++)))
++
++* (((
++**Onboard LED**: When power on device, the onboard LED will fast blink 4 times which means detect the sensor well.
++)))
++
++* (((
++(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** always ON**(%%): Sensor is power on but doesn't detect liquid. There is problem in installation point.
++)))
++* (((
++(% style="color:blue" %)**BLUE LED**(% style="color:red" %)** slowly blinking**(%%): Sensor detects Liquid Level, The installation point is good.
++)))
++
++(((
++LDDS20 will enter into low power mode at 30 seconds after system reset or power on, Blue LED will be off after that.
++)))
++
++
++(((
++(% style="color:red" %)**Note :**(%%)** (% style="color:blue" %)Ultrasonic coupling paste(%%)**(% style="color:blue" %) (%%) is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
++)))
++
++
++(((
++(% style="color:blue" %)**Step4:   **(%%)**Install use Epoxy ab glue.**
++)))
++
++(((
++Prepare Eproxy AB glue.
++)))
++
++(((
++Put Eproxy AB glue in the sensor and press it hard on the container installation point.
++)))
++
++(((
++Reset DDS20-LB and see if the BLUE LED is slowly blinking.
++)))
++
++[[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-20220615091045-8.png?width=341&height=203&rev=1.1||alt="image-20220615091045-8.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-20220615091045-9.png?width=284&height=200&rev=1.1||alt="image-20220615091045-9.png"]]
++
++
++(((
++(% style="color:red" %)**Note :**
++
++(% style="color:red" %)**1:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** needs 3~~ 5 minutes to stable attached. we can use other glue material to keep it in the position.
++)))
++
++(((
++(% style="color:red" %)**2:**(%%)** (% style="color:blue" %)Eproxy AB glue(%%)** is subjected in most shipping way. So the default package doesn't include it and user needs to purchase locally.
++)))
++
++
++== 1.6 Applications ==
++
++
++* Smart liquid control solution
++
++* Smart liquefied gas solution
++
++
++== 1.7 Precautions ==
++
++
++* At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
++
++* For containers of the same material at room temperature, the detection blind zone and detection limit height are also different for the thickness of the container.
++
++* When the detected liquid level exceeds the effective detection value of the sensor, and the liquid level of the liquid to be measured shakes or tilts, the detected liquid height is unstable.
++
  (% style="display:none" %)
--== 1.5 Sleep mode and working mode ==
++== 1.8 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.
@@ -126,7 +126,7 @@
  (% 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.
--== 1.6 Button & LEDs ==
++== 1.9 Button & LEDs ==
  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
@@ -133,7 +133,7 @@
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|=(% style="width: 167px;background-color:#4F81BD;color:white" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 225px;background-color:#4F81BD;color:white" %)**Action**
++|=(% style="width: 167px;background-color:#D9E2F3;color:#0070C0" %)**Behavior on ACT**|=(% style="width: 117px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 225px;background-color:#D9E2F3;color:#0070C0" %)**Action**
  |(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((
  If sensor is already Joined to LoRaWAN network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.
  Meanwhile, BLE module will be active and user can connect via BLE to configure device.
@@ -146,12 +146,11 @@
  |(% 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 ==
--== 1.7 BLE connection ==
++DDS20-LB support BLE remote configure.
--LDS12-LB support BLE remote configure.
--
  BLE can be used to configure the parameter of sensor or see the console output from sensor. BLE will be only activate on below case:
  * Press button to send an uplink
@@ -161,12 +161,12 @@
  If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
--== 1.8 Pin Definitions ==
++== 1.11 Pin Definitions ==
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/WL03A-LB_LoRaWAN_None-Position_Rope_Type_Water_Leak_Controller_User_Manual/WebHome/image-20230613144156-1.png?rev=1.1||alt="image-20230613144156-1.png"]]
++[[image:image-20230523174230-1.png]]
--== 1.9 Mechanical ==
++== 1.12 Mechanical ==
  [[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
@@ -180,16 +180,18 @@
  (% 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/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654827224480-952.png?rev=1.1||alt="1654827224480-952.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. Configure LDS12-LB to connect to LoRaWAN network =
++= 2. Configure DDS20-LB to connect to LoRaWAN network =
++
  == 2.1 How it works ==
--The LDS12-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the LDS12-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
++The DDS20-LB is configured as (% style="color:#037691" %)**LoRaWAN OTAA Class A**(%%) mode by default. It has OTAA keys to join LoRaWAN network. To connect a local LoRaWAN network, you need to input the OTAA keys in the LoRaWAN IoT server and press the button to activate the DDS20-LB. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
  (% style="display:none" %) (%%)
@@ -200,12 +200,12 @@
  The LPS8v2 is already set to connected to [[TTN network >>url:https://console.cloud.thethings.network/]], so what we need to now is configure the TTN server.
--[[image:image-20230615153004-2.png||height="459" width="800"]](% style="display:none" %)
++[[image:image-20230613140140-4.png||height="453" width="800"]](% style="display:none" %)
--(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
++(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DDS20-LB.
--Each LDS12-LB is shipped with a sticker with the default device EUI as below:
++Each DDS20-LB is shipped with a sticker with the default device EUI as below:
  [[image:image-20230426084152-1.png||alt="图片-20230426084152-1.png" height="233" width="502"]]
@@ -234,10 +234,10 @@
  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-S31-S31B%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20User%20Manual/WebHome/image-20220611161308-6.png?width=744&height=485&rev=1.1||alt="图片-20220611161308-6.png"]]
--(% style="color:blue" %)**Step 2:**(%%) Activate on LDS12-LB
++(% style="color:blue" %)**Step 2:**(%%) Activate on DDS20-LB
--Press the button for 5 seconds to activate the LDS12-LB.
++Press the button for 5 seconds to activate the DDS20-LB.
  (% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:blue" %)**OTA mode**(%%) for 3 seconds. And then start to JOIN LoRaWAN network. (% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.
@@ -244,154 +244,64 @@
  After join success, it will start to upload messages to TTN and you can see the messages in the panel.
--== 2.3 Uplink Payload ==
++== 2.3  Uplink Payload ==
--=== 2.3.1 Device Status, FPORT~=5 ===
++(((
++DDS20-LB will uplink payload via LoRaWAN with below payload format:
++)))
--Users can use the downlink command(**0x26 01**) to ask LDS12-LB to send device configure detail, include device configure status. LDS12-LB will uplink a payload via FPort=5 to server.
++(((
++Uplink payload includes in total 8 bytes.
++)))
--The Payload format is as below.
--
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
++(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
++|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)(((
  **Size(bytes)**
--)))|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**1**|=(% style="width: 100px; background-color: #4F81BD;color:white;" %)**2**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 100px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 50px;" %)**2**
--|(% style="width:62.5px" %)Value|(% style="width:110px" %)Sensor Model|(% style="width:48px" %)Firmware Version|(% style="width:94px" %)Frequency Band|(% style="width:91px" %)Sub-band|(% style="width:60px" %)BAT
++)))|=(% style="width: 62.5px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="background-color:#D9E2F3;color:#0070C0" %)1|=(% style="background-color:#D9E2F3;color:#0070C0" %)2|=(% style="background-color:#D9E2F3;color:#0070C0" %)**1**
++|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[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"]]
--Example parse in TTNv3
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS20%20-%20LoRaWAN%20Liquid%20Level%20Sensor%20User%20Manual/WebHome/1654850511545-399.png?rev=1.1||alt="1654850511545-399.png"]]
--(% style="color:blue" %)**Sensor Model**(%%): For LDS12-LB, this value is 0x24
--(% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
++=== 2.3.1  Battery Info ===
--(% style="color:blue" %)**Frequency Band**:
--0x01: EU868
++Check the battery voltage for DDS20-LB.
--0x02: US915
--
--0x03: IN865
--
--0x04: AU915
--
--0x05: KZ865
--
--0x06: RU864
--
--0x07: AS923
--
--0x08: AS923-1
--
--0x09: AS923-2
--
--0x0a: AS923-3
--
--0x0b: CN470
--
--0x0c: EU433
--
--0x0d: KR920
--
--0x0e: MA869
--
--(% style="color:blue" %)**Sub-Band**:
--
--AU915 and US915:value 0x00 ~~ 0x08
--
--CN470: value 0x0B ~~ 0x0C
--
--Other Bands: Always 0x00
--
--(% style="color:blue" %)**Battery Info**:
--
--Check the battery voltage.
--
  Ex1: 0x0B45 = 2885mV
  Ex2: 0x0B49 = 2889mV
--=== 2.3.2 Uplink Payload, FPORT~=2 ===
++=== 2.3.2  Distance ===
  (((
--LDS12-LB will uplink payload via LoRaWAN with below payload format:
++Get the distance. Flat object range 20mm - 2000mm.
  )))
  (((
--Uplink payload includes in total 11 bytes.
--)))
++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" %)** **
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
--**Size(bytes)**
--)))|=(% style="width: 30px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**2**|=(% style="width: 70px;background-color:#4F81BD;color:white" %)**2**|=(% style="background-color:#4F81BD;color:white; width: 80px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**|=(% style="background-color: #4F81BD;color:white; width: 70px;" %)**1**
--|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((
--[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]
--)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((
--[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]
--)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((
--[[Message Type>>||anchor="HMessageType"]]
++(% style="color:blue" %)**0605(H) = 1541 (D) = 1541 mm.**
  )))
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654833689380-972.png?rev=1.1||alt="1654833689380-972.png"]]
++* If the sensor value is 0x0000, it means system doesn't detect ultrasonic sensor.
++* If the sensor value lower than 0x0014 (20mm), the sensor value will be invalid.
--==== (% style="color:blue" %)**Battery Info**(%%) ====
++=== 2.3.3  Interrupt Pin ===
--Check the battery voltage for LDS12-LB.
--Ex1: 0x0B45 = 2885mV
--
--Ex2: 0x0B49 = 2889mV
--
--
--==== (% style="color:blue" %)**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.
--
--
--==== (% style="color:blue" %)**Distance**(%%) ====
--
--
--Represents the distance value of the measurement output, the default unit is cm, and the value range parsed as a decimal number is 0-1200. In actual use, when the signal strength value Strength.
--
--
--**Example**:
--
--If the data you get from the register is 0x0B 0xEA, the distance between the sensor and the measured object is 0BEA(H) = 3050 (D)/10 = 305cm.
--
--
--==== (% style="color:blue" %)**Distance signal strength**(%%) ====
--
--
--Refers to the signal strength, the default output value will be between 0-65535. When the distance measurement gear is fixed, the farther the distance measurement is, the lower the signal strength; the lower the target reflectivity, the lower the signal strength. When Strength is greater than 100 and not equal to 65535, the measured value of Dist is considered credible.
--
--
--**Example**:
--
--If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
--
--Customers can judge whether they need to adjust the environment based on the signal strength.
--
--
--==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
--
--
  This data field shows if this packet is generated by interrupt or not. [[Click here>>||anchor="H3.3.2SetInterruptMode"]] for the hardware and software set up.
--Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]].
--
  **Example:**
 x00: Normal uplink packet.
@@ -399,60 +399,53 @@
 x01: Interrupt Uplink Packet.
--==== (% style="color:blue" %)**LiDAR temp**(%%) ====
++=== 2.3.4  DS18B20 Temperature sensor ===
--Characterize the internal temperature value of the 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: 1C(H) <<24>>24=28(D),LiDAR temp=28℃.
--If payload is: F2(H) <<24>>24=-14(D),LiDAR temp=-14℃.
++**Example**:
++If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
--==== (% style="color:blue" %)**Message Type**(%%) ====
++If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
++=== 2.3.5  Sensor Flag ===
++
++
  (((
--For a normal uplink payload, the message type is always 0x01.
++0x01: Detect Ultrasonic Sensor
  )))
  (((
--Valid Message Type:
++0x00: No Ultrasonic Sensor
  )))
--(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)
--|=(% style="width: 161px;background-color:#4F81BD;color:white" %)**Message Type Code**|=(% style="width: 164px;background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 174px;background-color:#4F81BD;color:white" %)**Payload**
--|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)[[Normal Uplink Payload>>||anchor="H2.3200BUplinkPayload"]]
--|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)[[Configure Info Payload>>||anchor="H3.ConfigureLDS12-LB"]]
++=== 2.3.6  Decode payload in The Things Network ===
--=== 2.3.3 Decode payload in The Things Network ===
--
--
  While using TTN network, you can add the payload format to decode the payload.
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654592762713-715.png?rev=1.1||alt="1654592762713-715.png"]]
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654850829385-439.png?rev=1.1||alt="1654850829385-439.png"]]
++The payload decoder function for TTN V3 is here:
  (((
--The payload decoder function for TTN is here:
++DDS20-LB TTN V3 Payload Decoder:  [[ttps:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
  )))
--(((
--LDS12-LB TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
--)))
++== 2.4  Uplink Interval ==
--== 2.4 Uplink Interval ==
++The DDS20-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>||anchor="H3.3.1SetTransmitIntervalTime"]]
--The LDS12-LB by default uplink the sensor data every 20 minutes. User can change this interval by AT Command or LoRaWAN Downlink Command. See this link: [[Change Uplink Interval>>||anchor="H3.3.1SetTransmitIntervalTime"]]
++== 2.5  Show Data in DataCake IoT Server ==
--== 2.5 Show Data in DataCake IoT Server ==
--
  (((
  [[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, once we have data in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
  )))
@@ -475,7 +475,7 @@
  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
--(% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.**
++(% style="color:blue" %)**Step 4**(%%)**: Search the DDS20-LB and add DevEUI.**
  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
@@ -488,19 +488,19 @@
  == 2.6 Datalog Feature ==
--Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LDS12-LB will store the reading for future retrieving purposes.
++Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DDS20-LB will store the reading for future retrieving purposes.
  === 2.6.1 Ways to get datalog via LoRaWAN ===
--Set PNACKMD=1, LDS12-LB will wait for ACK for every uplink, when there is no LoRaWAN network,LDS12-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
++Set PNACKMD=1, DDS20-LB will wait for ACK for every uplink, when there is no LoRaWAN network,DDS20-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
  * (((
--a) LDS12-LB will do an ACK check for data records sending to make sure every data arrive server.
++a) DDS20-LB will do an ACK check for data records sending to make sure every data arrive server.
  )))
  * (((
--b) LDS12-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but LDS12-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if LDS12-LB gets a ACK, LDS12-LB will consider there is a network connection and resend all NONE-ACK messages.
++b) DDS20-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but DDS20-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if DDS20-LB gets a ACK, DDS20-LB will consider there is a network connection and resend all NONE-ACK messages.
  )))
  Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
@@ -511,7 +511,7 @@
  === 2.6.2 Unix TimeStamp ===
--LDS12-LB uses Unix TimeStamp format based on
++DDS20-LB uses Unix TimeStamp format based on
  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
@@ -530,7 +530,7 @@
  User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
--Once LDS12-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to LDS12-LB. If LDS12-LB fails to get the time from the server, LDS12-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
++Once DDS20-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DDS20-LB. If DDS20-LB fails to get the time from the server, DDS20-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
  (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
@@ -541,7 +541,7 @@
  Users can poll sensor values based on timestamps. Below is the downlink command.
  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:425.818px" %)
--|(% colspan="4" style="background-color:#4f81bd; color:white; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
++|(% colspan="4" style="background-color:#d9e2f3; color:#0070c0; width:423px" %)**Downlink Command to poll Open/Close status (0x31)**
  |(% style="width:58px" %)**1byte**|(% style="width:127px" %)**4bytes**|(% style="width:124px" %)**4bytes**|(% style="width:114px" %)**1byte**
  |(% style="width:58px" %)31|(% style="width:127px" %)Timestamp start|(% style="width:124px" %)Timestamp end|(% style="width:114px" %)Uplink Interval
@@ -558,7 +558,7 @@
  )))
  (((
--Uplink Internal =5s，means LDS12-LB will send one packet every 5s. range 5~~255s.
++Uplink Internal =5s，means DDS20-LB will send one packet every 5s. range 5~~255s.
  )))
@@ -565,105 +565,17 @@
  == 2.7 Frequency Plans ==
--The LDS12-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
++The DDS20-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
--== 2.8 LiDAR ToF Measurement ==
++= 3. Configure DDS20-LB =
--=== 2.8.1 Principle of Distance Measurement ===
--
--
--The LiDAR probe is based on TOF, namely, Time of Flight principle. To be specific, the product emits modulation wave of near infrared ray on a periodic basis, which will be reflected after contacting object. The product obtains the time of flight by measuring round-trip phase difference and then calculates relative range between the product and the detection object, as shown below.
--
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831757579-263.png?rev=1.1||alt="1654831757579-263.png"]]
--
--
--=== 2.8.2 Distance Measurement Characteristics ===
--
--
--With optimization of light path and algorithm, The LiDAR probe has minimized influence from external environment on distance measurement performance. Despite that, the range of distance measurement may still be affected by the environment illumination intensity and the reflectivity of detection object. As shown in below:
--
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831774373-275.png?rev=1.1||alt="1654831774373-275.png"]]
--
--
--(((
--(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
--)))
--
--(((
--(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
--)))
--
--(((
--(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
--)))
--
--
--(((
--Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
--)))
--
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831797521-720.png?rev=1.1||alt="1654831797521-720.png"]]
--
--(((
--In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
--)))
--
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831810009-716.png?rev=1.1||alt="1654831810009-716.png"]]
--
--(((
--If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
--)))
--
--
--=== 2.8.3  Notice of usage ===
--
--
--Possible invalid /wrong reading for LiDAR ToF tech:
--
--* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.
--* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might be wrong.
--* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.
--* The sensor window is made by Acrylic. Don't touch it with alcohol material. This will destroy the sensor window.
--
--
--
--=== 2.8.4  Reflectivity of different objects ===
--
--
--(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:379px" %)
--|=(% style="width: 54px;background-color:#4F81BD;color:white" %)Item|=(% style="width: 231px;background-color:#4F81BD;color:white" %)Material|=(% style="width: 94px;background-color:#4F81BD;color:white" %)Relectivity
--|(% style="width:53px" %)1|(% style="width:229px" %)Black foam rubber|(% style="width:93px" %)2.4%
--|(% style="width:53px" %)2|(% style="width:229px" %)Black fabric|(% style="width:93px" %)3%
--|(% style="width:53px" %)3|(% style="width:229px" %)Black rubber|(% style="width:93px" %)4%
--|(% style="width:53px" %)4|(% style="width:229px" %)Coal (different types of coal)|(% style="width:93px" %)4~~8%
--|(% style="width:53px" %)5|(% style="width:229px" %)Black car paint|(% style="width:93px" %)5%
--|(% style="width:53px" %)6|(% style="width:229px" %)Black Jam|(% style="width:93px" %)10%
--|(% style="width:53px" %)7|(% style="width:229px" %)Opaque black plastic|(% style="width:93px" %)14%
--|(% style="width:53px" %)8|(% style="width:229px" %)Clean rough board|(% style="width:93px" %)20%
--|(% style="width:53px" %)9|(% style="width:229px" %)Translucent plastic bottle|(% style="width:93px" %)62%
--|(% style="width:53px" %)10|(% style="width:229px" %)Carton cardboard|(% style="width:93px" %)68%
--|(% style="width:53px" %)11|(% style="width:229px" %)Clean pine|(% style="width:93px" %)70%
--|(% style="width:53px" %)12|(% style="width:229px" %)Opaque white plastic|(% style="width:93px" %)87%
--|(% style="width:53px" %)13|(% style="width:229px" %)White Jam|(% style="width:93px" %)90%
--|(% style="width:53px" %)14|(% style="width:229px" %)Kodak Standard Whiteboard|(% style="width:93px" %)100%
--|(% style="width:53px" %)15|(% style="width:229px" %)(((
--Unpolished white metal surface
--)))|(% style="width:93px" %)130%
--|(% style="width:53px" %)16|(% style="width:229px" %)Glossy light metal surface|(% style="width:93px" %)150%
--|(% style="width:53px" %)17|(% style="width:229px" %)stainless steel|(% style="width:93px" %)200%
--|(% style="width:53px" %)18|(% style="width:229px" %)Reflector plate, reflective tape|(% style="width:93px" %)>300%
--
--
--
--= 3. Configure LDS12-LB =
--
  == 3.1 Configure Methods ==
--LDS12-LB supports below configure method:
++DDS20-LB 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/]].
@@ -672,7 +672,6 @@
  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
--
  == 3.2 General Commands ==
@@ -687,10 +687,10 @@
  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/]]
--== 3.3 Commands special design for LDS12-LB ==
++== 3.3 Commands special design for DDS20-LB ==
--These commands only valid for LDS12-LB, as below:
++These commands only valid for DDS20-LB, as below:
  === 3.3.1 Set Transmit Interval Time ===
@@ -705,7 +705,7 @@
  )))
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**
++|=(% style="width: 156px;background-color:#D9E2F3; color:#0070c0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3; color:#0070c0" %)**Function**|=(% style="background-color:#D9E2F3; color:#0070c0" %)**Response**
  |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
  OK
@@ -748,7 +748,7 @@
  (% style="color:blue" %)**AT Command: AT+INTMOD**
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
++|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
  |(% style="width:154px" %)AT+INTMOD=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
  OK
@@ -773,40 +773,10 @@
  * Example 2: Downlink Payload: 06000003      ~/~/   Set the interrupt mode to rising edge trigger
--
--=== 3.3.3  Set Power Output Duration ===
--
--Control the output duration 3V3 . Before each sampling, device will
--
--~1. first enable the power output to external sensor,
--
--2. keep it on as per duration, read sensor value and construct uplink payload
--
--3. final, close the power output.
--
--(% style="color:blue" %)**AT Command: AT+3V3T**
--
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
--|(% style="width:154px" %)AT+3V3T=?|(% style="width:196px" %)Show 3V3 open time.|(% style="width:157px" %)0 (default)
--OK
--|(% style="width:154px" %)AT+3V3T=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
--|(% style="width:154px" %)AT+3V3T=0|(% style="width:196px" %)Always turn on the power supply of 3V3 pin.|(% style="width:157px" %)OK
--
--(% style="color:blue" %)**Downlink Command: 0x07**(%%)
--Format: Command Code (0x07) followed by 3 bytes.
--
--The first byte is 01,the second and third bytes are the time to turn on.
--
--* Example 1: Downlink Payload: 07 01 00 00     **~-~-->**   AT+3V3T=0
--* Example 2: Downlink Payload: 07 01 01 F4      **~-~-->**  AT+3V3T=500
--
--
--
  = 4. Battery & Power Consumption =
--LDS12-LB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.
++DDS20-LB 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/]] .
@@ -815,7 +815,7 @@
  (% class="wikigeneratedid" %)
--User can change firmware LDS12-LB to:
++User can change firmware DDS20-LB to:
  * Change Frequency band/ region.
@@ -823,7 +823,7 @@
  * Fix bugs.
--Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/w1p7ukjrx49e62r/AAB3uCNCt-koYUvMkZUPBRSca?dl=0]]**
++Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/ph4uyz0rchflrnw/AADr1f_5Sg30804NItpfOQbla?dl=0]]**
  Methods to Update Firmware:
@@ -832,41 +832,41 @@
  * 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 What is the frequency plan for LDS12-LB? ==
++== 6.1  What is the frequency plan for DDS20-LB? ==
--LDS12-LB use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
++DDS20-LB use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
--= 7. Trouble Shooting =
++== 6.2  Can I use DDS20-LB in condensation environment? ==
--== 7.1 AT Command input doesn't work ==
++DDS20-LB is not suitable to be used in condensation environment. Condensation on the DDS20-LB probe will affect the reading and always got 0.
--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:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
++= 7.  Trouble Shooting =
--== 7.2 Significant error between the output distant value of LiDAR and actual distance ==
++== 7.1  Why I can't join TTN V3 in US915 / AU915 bands? ==
--(((
--(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance. (such as glass and water, etc.)
--)))
++It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
--(((
--(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.
--)))
++== 7.2  AT Command input doesn't work ==
--(((
--(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
--)))
++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:blue" %)**ENTER**(%%) while sending out the command. Some serial tool doesn't send (% style="color:blue" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
++
++
++== 7.3  Why i always see 0x0000 or 0 for the distance value? ==
++
++
  (((
--(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.
++LDDS20 has a strict [[**installation requirement**>>||anchor="H1.5A0InstallDDS20-LB"]]. 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.
  )))
@@ -873,7 +873,7 @@
  = 8. Order Info =
--Part Number: (% style="color:blue" %)**LDS12-LB-XXX**
++Part Number: (% style="color:blue" %)**DDS20-LB-XXX**
  (% style="color:red" %)**XXX**(%%): **The default frequency band**
@@ -894,13 +894,12 @@
  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
--
  = 9. Packing Info =
  (% style="color:#037691" %)**Package Includes**:
--* LDS12-LB LoRaWAN LiDAR ToF Distance Sensor x 1
++* DDS20-LB LoRaWAN Ultrasonic Liquid Level Sensor x 1
  (% style="color:#037691" %)**Dimension and weight**:
@@ -913,7 +913,6 @@
  * Weight / pcs : g
--
  = 10. Support =

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