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

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

From 96.1 to 95.1 From 120.4 to 120.3

From version 120.3

edited by Xiaoling
on 2023/11/28 14:43

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To version 96.1

edited by Saxer Lin
on 2023/08/05 14:50

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Title

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--DS20L -- LoRaWAN Smart Distance Detector User Manual
++LDS12-LB -- LoRaWAN LiDAR ToF Distance Sensor User Manual

Author

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

Content

@@ -1,5 +1,5 @@
  (% style="text-align:center" %)
--[[image:image-20231110085342-2.png||height="481" width="481"]]
++[[image:image-20230614153353-1.png]]
@@ -7,7 +7,6 @@
--
  **Table of Contents：**
  {{toc/}}
@@ -19,66 +19,174 @@
  = 1. Introduction =
--== 1.1 What is LoRaWAN Smart Distance Detector ==
++== 1.1 What is LoRaWAN LiDAR ToF Distance Sensor ==
--The Dragino (% style="color:blue" %)**DS20L is a smart distance detector**(%%) base on long-range wireless LoRaWAN technology. It uses (% style="color:blue" %)**LiDAR sensor**(%%) to detect the distance between DS20L and object, then DS20L will send the distance data to the IoT Platform via LoRaWAN. DS20L can measure range between 3cm ~~ 200cm.
++The Dragino LDS12-LB is a (% style="color:blue" %)**LoRaWAN LiDAR ToF (Time of Flight) Distance Sensor**(%%) for Internet of Things solution. It is capable to measure the distance to an object as close as 10 centimeters (+/- 5cm up to 6m) and as far as 12 meters (+/-1% starting at 6m)!. The LiDAR probe uses laser induction technology for distance measurement.
--DS20L allows users to send data and reach extremely long ranges via LoRaWAN. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current
--consumption. It targets professional wireless sensor network applications such smart cities, building automation, and so on.
++The LDS12-LB can be applied to scenarios such as horizontal distance measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control, sewer, etc.
--DS20L has a (% style="color:blue" %)**built-in 2400mAh non-chargeable battery**(%%) for long-term use up to several years*. Users can also power DS20L with an external power source for (% style="color:blue" %)**continuous measuring and distance alarm / counting purposes.**
++It detects the distance between the measured object and the sensor, and uploads the value via wireless to LoRaWAN IoT Server.
--DS20L is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
++The LoRa wireless technology used in LDS12-LB allows device to send data and reach extremely long ranges at low data-rates. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.
++LDS12-LB (% style="color:blue" %)**supports BLE configure**(%%) and (% style="color:blue" %)**wireless OTA update**(%%) which make user easy to use.
--[[image:image-20231110102635-5.png||height="402" width="807"]]
++LDS12-LB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long term use up to 5 years.
++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"]]
++
++
  == 1.2 Features ==
--* LoRaWAN Class A protocol
--* LiDAR distance detector, range 3 ~~ 200cm
--* Periodically detect or continuously detect mode
++* 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
++* Support Bluetooth v5.1 and LoRaWAN remote configure
++* Support wireless OTA update firmware
  * AT Commands to change parameters
--* Remotely configure parameters via LoRaWAN Downlink
--* Alarm & Counting mode
--* Firmware upgradable via program port or LoRa protocol
--* Built-in 2400mAh battery or power by external power source
++* Downlink to change configure
++* 8500mAh Battery for long term use
++
  == 1.3 Specification ==
--(% style="color:#037691" %)**LiDAR Sensor:**
++(% style="color:#037691" %)**Common DC Characteristics:**
--* Operation Temperature: -40 ~~ 80 °C
--* Operation Humidity: 0~~99.9%RH (no Dew)
--* Storage Temperature: -10 ~~ 45°C
--* Measure Range: 3cm~~200cm @ 90% reflectivity
--* Accuracy: ±2cm @ (3cm~~100cm); ±5% @ (100~~200cm)
--* ToF FoV: ±9°, Total 18°
--* Light source: VCSEL
++* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
++* Operating Temperature: -40 ~~ 85°C
--== 1.4 Power Consumption ==
++(% 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" %)**Battery Power Mode:**
++(% style="color:#037691" %)**LoRa Spec:**
--* Idle: 0.003 mA @ 3.3v
--* Max : 360 mA
++* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
++* Max +22 dBm constant RF output vs.
++* RX sensitivity: down to -139 dBm.
++* Excellent blocking immunity
--(% style="color:#037691" %)**Continuously mode**:
++(% style="color:#037691" %)**Battery:**
--* Idle: 21 mA @ 3.3v
--* Max : 360 mA
++* Li/SOCI2 un-chargeable battery
++* Capacity: 8500mAh
++* Self-Discharge: <1% / Year @ 25°C
++* Max continuously current: 130mA
++* Max boost current: 2A, 1 second
--= 2. Configure DS20L to connect to LoRaWAN network =
++(% style="color:#037691" %)**Power Consumption**
++* Sleep Mode: 5uA @ 3.3v
++* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
++
++
++== 1.4 Applications ==
++
++
++* 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 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.
++
++
++== 1.6 Button & LEDs ==
++
++
++[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]
++
++
++(% 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" %)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.
++)))
++|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((
++(% style="color:green" %)**Green led**(%%) will fast blink 5 times, device will enter (% style="color:#037691" %)**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.
++Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device join or not join LoRaWAN network.
++)))
++|(% 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.
++
++
++== 1.7 BLE connection ==
++
++
++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
++* Press button to active device.
++* Device Power on or reset.
++
++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 ==
++
++[[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"]]
++
++
++== 1.9 Mechanical ==
++
++
++[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143884058-338.png]]
++
++
++[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143899218-599.png]]
++
++
++[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675143909447-639.png]]
++
++
++(% style="color:blue" %)**Probe Mechanical:**
++
++
++[[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"]]
++
++
++= 2. Configure LDS12-LB to connect to LoRaWAN network =
++
  == 2.1 How it works ==
--The DS20L 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 DS20L. It will automatically join the network via OTAA and start to send the sensor value. The default uplink interval is 20 minutes.
++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.
  (% style="display:none" %) (%%)
@@ -87,14 +87,15 @@
  Following is an example for how to join the [[TTN v3 LoRaWAN Network>>url:https://console.cloud.thethings.network/]]. Below is the network structure; we use the [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]]  as a LoRaWAN gateway in this example.
--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.(% style="display:none" %)
++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-20231110102635-5.png||height="402" width="807"]](% style="display:none" %)
++[[image:image-20230615153004-2.png||height="459" width="800"]](% style="display:none" %)
--(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from DS20L.
--Each DS20L is shipped with a sticker with the default device EUI as below:
++(% style="color:blue" %)**Step 1:**(%%) Create a device in TTN with the OTAA keys from LDS12-LB.
++Each LDS12-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"]]
@@ -122,11 +122,10 @@
  [[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 DS20L
++(% style="color:blue" %)**Step 2:**(%%) Activate on LDS12-LB
--[[image:image-20231128133704-1.png||height="189" width="441"]]
--Press the button for 5 seconds to activate the DS20L.
++Press the button for 5 seconds to activate the LDS12-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.
@@ -138,7 +138,7 @@
  === 2.3.1 Device Status, FPORT~=5 ===
--Users can use the downlink command(**0x26 01**) to ask DS20L to send device configure detail, include device configure status. DS20L will uplink a payload via FPort=5 to server.
++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.
  The Payload format is as below.
@@ -150,9 +150,9 @@
  Example parse in TTNv3
--[[image:1701149922873-259.png]]
++[[image:image-20230805103904-1.png||height="131" width="711"]]
--(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x21
++(% style="color:blue" %)**Sensor Model**(%%): For LDS12-LB, this value is 0x24
  (% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
@@ -207,9 +207,9 @@
  (((
--DS20L will send this uplink **after** Device Status once join the LoRaWAN network successfully. And DS20L will:
++LDS12-LB will send this uplink **after** Device Status once join the LoRaWAN network successfully. And LDS12-LB will:
--periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
++periodically send this uplink every 20 minutes, this interval [[can be changed>>https://111]].
  Uplink Payload totals 11 bytes.
  )))
@@ -226,258 +226,326 @@
  [[Message Type>>||anchor="HMessageType"]]
  )))
--==== **MOD~=1** ====
++[[image:image-20230805104104-2.png||height="136" width="754"]]
--Regularly detect distance and report. When the distance exceeds the limit, the alarm flag is set to 1, and the report can be triggered by external interrupts.
--Uplink Payload totals 10 bytes.
++==== (% style="color:blue" %)**Battery Info**(%%) ====
--(% border="1" cellspacing="4" style="width:510px;background-color:#f2f2f2" %)
--|(% style="width:60px;background-color:#4F81BD;color:white" %)**Size(bytes)**|(% style="width:30px;background-color:#4F81BD;color:white" %)**2**|(% style="width:130px;background-color:#4F81BD;color:white" %)**1**|(% style="width:70px;background-color:#4F81BD;color:white" %)**2**|(% style="width:100px;background-color:#4F81BD;color:white" %)**1**|(% style="width:120px;background-color:#4F81BD;color:white" %)**4**
--|(% style="width:91px" %)Value|(% style="width:41px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:176px" %)MOD+ Alarm+Interrupt|(% style="width:74px" %)Distance|(% style="width:100px" %)Sensor State|(% style="width:119px" %)Interrupt Count
++Check the battery voltage for LDS12-LB.
--[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
++Ex1: 0x0B45 = 2885mV
--==== **Battery Info** ====
++Ex2: 0x0B49 = 2889mV
--Check the battery voltage for DS20L
--Ex1: 0x0E10 = 3600mV
++==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
--**MOD & Alarm & Interrupt**
--**MOD:**
++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: ** (0x60>>6) & 0x3f =1
--**0x01:**  Regularly detect distance and report.
--**0x02: ** Uninterrupted measurement (external power supply).
++**Example**:
--**Alarm:**
++If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
--When the detection distance exceeds the limit, the alarm flag is set to 1.
++If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
--**Interrupt:**
--Whether it is an external interrupt.
++==== (% style="color:blue" %)**Distance**(%%) ====
--==== Distance** info** ====
++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 payload is: 0708H: distance = 0708H = 1800 mm
++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.
--==== **Sensor State** ====
--Ex1: 0x00: Normal collection distance
++==== (% style="color:blue" %)**Distance signal strength**(%%) ====
--Ex2 0x0x: Distance collection is wrong
--==== **Interript Count** ====
++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.
--If payload is:000007D0H: count = 07D0H =2000
--**MOD=2**
++**Example**:
--Uninterrupted measurement. When the distance exceeds the limit, the output IO is set high and reports are reported every five minutes. The time can be set and powered by an external power supply.Uplink Payload totals 11bytes.
++If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.
--|**Size(bytes)**|**2**|**1**|**4**|**2**|**2**
--|Value|[[BAT>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/DS20L_LoRaWAN_Smart_Distance_Detector_User_Manual/#HBatteryInfo]]|MOD+ Alarm+Do+ Limit flag|Distance Limit  Alarm count|Upper limit|Lower limit
++Customers can judge whether they need to adjust the environment based on the signal strength.
--[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
++==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
--**MOD & Alarm & Do & Limit** **flag**
--**MOD:**
++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.
--**Example: ** (0x60>>6) & 0x3f =1
++Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]].
--**0x01:**  Regularly detect distance and report.
--**0x02: ** Uninterrupted measurement (external power supply).
++**Example:**
--**Alarm:**
++0x00: Normal uplink packet.
--When the detection distance exceeds the limit, the alarm flag is set to 1.
++0x01: Interrupt Uplink Packet.
--**Do:**
--When the distance exceeds the set threshold, pull the Do pin high.
++==== (% style="color:blue" %)**LiDAR temp**(%%) ====
--**Limit** **flag:**
--Mode for setting threshold: 0~~5
++Characterize the internal temperature value of the sensor.
--0: does not use upper and lower limits
++**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℃.
--1: Use upper and lower limits
--2: is less than the lower limit value
++==== (% style="color:blue" %)**Message Type**(%%) ====
--3: is greater than the lower limit value
--4: is less than the upper limit
++(((
++For a normal uplink payload, the message type is always 0x01.
++)))
--5: is greater than the upper limit
++(((
++Valid Message Type:
++)))
--**Upper limit:**
++(% 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"]]
--The upper limit of the threshold cannot exceed 2000mm.
--**Lower limit:**
++=== 2.3.3 Decode payload in The Things Network ===
--The lower limit of the threshold cannot be less than 3mm.
++While using TTN network, you can add the payload format to decode the payload.
--=== 2.3.3 Historical measuring distance, FPORT~=3 ===
++[[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"]]
--DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
++(((
++The payload decoder function for TTN is here:
++)))
--The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
++(((
++LDS12-LB TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
++)))
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
--**Size(bytes)**
--)))|=(% style="width: 80px;background-color:#4F81BD;color:white" %)1|=(% style="width: 80px;background-color:#4F81BD;color:white" %)**1**|=(% 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: 85px;" %)**1**|=(% style="background-color: #4F81BD; color: white; width: 85px;" %)4
--|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((
--Reserve(0xFF)
--)))|Distance|Distance signal strength|(% style="width:88px" %)(((
--LiDAR temp
--)))|(% style="width:85px" %)Unix TimeStamp
--**Interrupt flag & Interrupt level:**
++== 2.4 Show Data in DataCake IoT Server ==
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)
--|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((
--**Size(bit)**
--)))|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit7**|=(% style="width: 90px;background-color:#4F81BD;color:white" %)**bit6**|=(% style="width: 60px;background-color:#4F81BD;color:white" %)**[bit5:bit2]**|=(% style="width: 90px; background-color: #4F81BD; color: white;" %)**bit1**|=(% style="background-color: #4F81BD; color: white; width: 90px;" %)**bit0**
--|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)No ACK message|(% style="width:62.5px" %)Poll Message Flag|Reserve|(% style="width:91px" %)Interrupt level|(% style="width:88px" %)(((
--Interrupt flag
++
++(((
++[[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:
  )))
--* (((
--Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, DS20L will send max bytes according to the current DR and Frequency bands.
++
++(((
++(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
  )))
--For example, in the US915 band, the max payload for different DR is:
++(((
++(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
++)))
--**a) DR0:** max is 11 bytes so one entry of data
--**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592790040-760.png?rev=1.1||alt="1654592790040-760.png"]]
--**c) DR2:** total payload includes 11 entries of data
--**d) DR3:** total payload includes 22 entries of data.
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592800389-571.png?rev=1.1||alt="1654592800389-571.png"]]
--If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
++(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
--**Downlink:**
++(% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.**
--0x31 64 CC 68 0C 64 CC 69 74 05
++[[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"]]
--[[image:image-20230805144936-2.png||height="113" width="746"]]
--**Uplink:**
++After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
--43 FF 0E 10 00 B0 1E 64 CC 68 0C 40 FF 0D DE 00 A8 1E 64 CC 68 29 40 FF 09 92 00 D3 1E 64 CC 68 65 40 FF 02 3A 02 BC 1E 64 CC 68 A1 41 FF 0E 1A 00 A4 1E 64 CC 68 C0 40 FF 0D 2A 00 B8 1E 64 CC 68 E8 40 FF 00 C8 11 6A 1E 64 CC 69 24 40 FF 0E 24 00 AD 1E 64 CC 69 6D
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/image-20220610165129-11.png?width=1088&height=595&rev=1.1||alt="image-20220610165129-11.png"]]
--**Parsed Value:**
++== 2.5 Datalog Feature ==
--[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
++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.
--[360,176,30,High,True,2023-08-04 02:53:00],
--[355,168,30,Low,False,2023-08-04 02:53:29],
++=== 2.5.1 Ways to get datalog via LoRaWAN ===
--[245,211,30,Low,False,2023-08-04 02:54:29],
--[57,700,30,Low,False,2023-08-04 02:55:29],
++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.
--[361,164,30,Low,True,2023-08-04 02:56:00],
++* (((
++a) LDS12-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.
++)))
--[337,184,30,Low,False,2023-08-04 02:56:40],
++Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
--[20,4458,30,Low,False,2023-08-04 02:57:40],
++[[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-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]
--[362,173,30,Low,False,2023-08-04 02:58:53],
++=== 2.5.2 Unix TimeStamp ===
--**History read from serial port：**
--[[image:image-20230805145056-3.png]]
++LDS12-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"]]
--=== 2.3.4 Decode payload in The Things Network ===
++User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
++Below is the converter example
--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/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220523001219-12.png?width=720&height=298&rev=1.1||alt="图片-20220523001219-12.png" height="298" width="720"]]
--[[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"]]
++So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
++
++=== 2.5.3 Set Device Time ===
++
++
++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).
++
++(% 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.**
++
++
++=== 2.5.4 Poll sensor value ===
++
++
++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)**
++|(% 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
++
  (((
--The payload decoder function for TTN is here:
++Timestamp start and Timestamp end-use Unix TimeStamp format as mentioned above. Devices will reply with all data logs during this period, using the uplink interval.
  )))
  (((
--DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
++For example, downlink command [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/CPL01%20LoRaWAN%20Outdoor%20PulseContact%20%20Sensor%20Manual/WebHome/image-20220518162852-1.png?rev=1.1||alt="image-20220518162852-1.png"]]
  )))
++(((
++Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
++)))
--== 2.4 Show Data in DataCake IoT Server ==
++(((
++Uplink Internal =5s，means LDS12-LB will send one packet every 5s. range 5~~255s.
++)))
++== 2.6 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.
++
++[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
++
++
++== 2.7 LiDAR ToF Measurement ==
++
++=== 2.7.1 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"]]
++
++
++=== 2.7.2 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"]]
++
++
  (((
--[[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:
++(% 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" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
++(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
  )))
  (((
--(% style="color:blue" %)**Step 2**(%%)**: To configure the Application to forward data to DATACAKE you will need to add integration. To add the DATACAKE integration, perform the following steps:**
++(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
  )))
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592790040-760.png?rev=1.1||alt="1654592790040-760.png"]]
++(((
++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"]]
--[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654592800389-571.png?rev=1.1||alt="1654592800389-571.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"]]
--(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
++(((
++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.
++)))
--(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L 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"]]
++=== 2.7.3  Notice of usage ===
--After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
++Possible invalid /wrong reading for LiDAR ToF tech:
--[[image:1701152946067-561.png]]
++* 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.
--== 2.5 Frequency Plans ==
++=== 2.7.4  Reflectivity of different objects ===
--The DS20L 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.
++(% 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%
--[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
++= 3. Configure LDS12-LB =
--= 3. Configure DS20L =
--
  == 3.1 Configure Methods ==
--DS20L supports below configure method:
++LDS12-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/]].
@@ -485,6 +485,7 @@
  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
++
  == 3.2 General Commands ==
@@ -499,10 +499,10 @@
  [[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 DS20L ==
++== 3.3 Commands special design for LDS12-LB ==
--These commands only valid for DS20L, as below:
++These commands only valid for LDS12-LB, as below:
  === 3.3.1 Set Transmit Interval Time ===
@@ -544,15 +544,18 @@
  Example 1: Downlink Payload: 0100001E       ~/~/ Set Transmit Interval (TDC) = 30 seconds
  )))
  * (((
--Example 2: Downlink Payload: 0100003C      ~/~/ Set Transmit Interval (TDC) = 60 seconds
++Example 2: Downlink Payload: 0100003C      ~/~/ Set Transmit Interval (TDC) = 60 seconds
++
++
++
  )))
  === 3.3.2 Set Interrupt Mode ===
--Feature, Set Interrupt mode for pin of GPIO_EXTI.
++Feature, Set Interrupt mode for PA8 of pin.
--When AT+INTMOD=0 is set, GPIO_EXTI is used as a digital input port.
++When AT+INTMOD=0 is set, PA8 is used as a digital input port.
  (% style="color:blue" %)**AT Command: AT+INTMOD**
@@ -563,11 +563,7 @@
  OK
  the mode is 0 =Disable Interrupt
  )))
--|(% style="width:154px" %)(((
--AT+INTMOD=3
--
--(default)
--)))|(% style="width:196px" %)(((
++|(% style="width:154px" %)AT+INTMOD=2|(% style="width:196px" %)(((
  Set Transmit Interval
 . (Disable Interrupt),
  ~1. (Trigger by rising and falling edge)
@@ -586,77 +586,38 @@
  * Example 2: Downlink Payload: 06000003      ~/~/   Set the interrupt mode to rising edge trigger
--== 3.3.3 Set work mode ==
++=== 3.3.3  Set Power Output Duration ===
++Control the output duration 3V3 . Before each sampling, device will
--Feature: Switch working mode
++~1. first enable the power output to external sensor,
--(% style="color:blue" %)**AT Command: AT+MOD**
++2. keep it on as per duration, read sensor value and construct uplink payload
--(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
--|=(% style="width: 162px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 193px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Response**
--|(% style="width:162px" %)AT+MOD=?|(% style="width:191px" %)Get the current working mode.|(% style="width:106px" %)OK
--|(% style="width:162px" %)AT+MOD=1|(% style="width:191px" %)Set the working mode to Regular measurements.|(% style="width:106px" %)(((
--OK
--Attention:Take effect after ATZ
--)))
++3. final, close the power output.
--(% style="color:blue" %)**Downlink Command:**
++(% style="color:blue" %)**AT Command: AT+3V3T**
--* **Example: **0x0A00       ~/~/  Same as AT+MOD=0
--
--* **Example:** 0x0A01       ~/~/  Same as AT+MOD=1
--
--=== 3.3.4 Set threshold and threshold mode ===
--
--
--Feature, Set threshold and threshold mode
--
--When (% style="color:#037691" %)**AT+DOL=0,0,0,0,400**(%%) is set, No threshold is used, the sampling time is 400ms.
--
--(% style="color:blue" %)**AT Command: AT+DOL**
--
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|(% style="background-color:#4f81bd; color:white; width:162px" %)**Command Example**|(% style="background-color:#4f81bd; color:white; width:240px" %)**Function**|(% style="background-color:#4f81bd; color:white; width:108px" %)**Response**
--|(% style="width:172px" %)AT+ DOL =?|(% style="width:279px" %)Get the current threshold mode and sampling time|(% style="width:118px" %)(((
--0,0,0,0,400
++|=(% 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:172px" %)AT+ DOL =1,1800,100,0,400|(% style="width:279px" %)Set only the upper and lower thresholds|(% style="width:118px" %)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.
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|(% rowspan="11" style="color:blue; width:120px" %)**AT+DOL=5,1800,0,0,400**|(% rowspan="6" style="width:240px" %)The first bit sets the limit mode|(% style="width:150px" %)0: Do not use upper and lower limits
--|(% style="width:251px" %)1: Use upper and lower limits
--|(% style="width:251px" %)2: Less than the lower limit
--|(% style="width:251px" %)3: Greater than the lower limit
--|(% style="width:251px" %)4: Less than the upper limit
--|(% style="width:251px" %)5: Greater than the upper limit
--|(% style="width:226px" %)The second bit sets the upper limit value|(% style="width:251px" %)3~~2000MM
--|(% style="width:226px" %)The third bit sets the lower limit value|(% style="width:251px" %)3~~2000MM
--|(% rowspan="2" style="width:226px" %)The fourth bit sets the over-limit alarm or person or object count.|(% style="width:251px" %)0 Over-limit alarm, DO output is high
--|(% style="width:251px" %)1 Person or object counting statistics
--|(% style="width:226px" %)The fifth bit sets the sampling time|(% style="width:251px" %)(((
--0~~10000ms
++* Example 1: Downlink Payload: 07 01 00 00     **~-~-->**   AT+3V3T=0
++* Example 2: Downlink Payload: 07 01 01 F4      **~-~-->**  AT+3V3T=500
--
--)))
--(% style="color:blue" %)**Downlink Command: 0x07**
--
--Format: Command Code (0x07) followed by 9bytes.
--
--* Example 0: Downlink Payload: 070000000000000190      **~-~-->**   AT+MOD=0,0,0,0,400
--
--* Example 1: Downlink Payload: 070107080064000190      **~-~-->**   AT+MOD=1,1800,100,0,400
--
--
--
  = 4. Battery & Power Consumption =
--DS20L use built-in 2400mAh non-chargeable battery for long-term use up to several years*. See below link for detail information about the battery info and how to replace.
++LDS12-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/]] .
@@ -665,7 +665,7 @@
  (% class="wikigeneratedid" %)
--User can change firmware DS20L to:
++User can change firmware LDS12-LB to:
  * Change Frequency band/ region.
@@ -673,7 +673,7 @@
  * Fix bugs.
--Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/zqv1vt3komgp4tu/AAC33PnXIcWOVl_UXBEAeT_xa?dl=0]]**
++Firmware and changelog can be downloaded from : **[[Firmware download link>>url:https://www.dropbox.com/sh/w1p7ukjrx49e62r/AAB3uCNCt-koYUvMkZUPBRSca?dl=0]]**
  Methods to Update Firmware:
@@ -681,12 +681,13 @@
  * 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 DS20L? ==
++== 6.1 What is the frequency plan for LDS12-LB? ==
--DS20L 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"]]
++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"]]
  = 7. Trouble Shooting =
@@ -721,7 +721,7 @@
  = 8. Order Info =
--Part Number: (% style="color:blue" %)**DS20L-XXX**
++Part Number: (% style="color:blue" %)**LDS12-LB-XXX**
  (% style="color:red" %)**XXX**(%%): **The default frequency band**
@@ -741,12 +741,13 @@
  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
++
  = 9. Packing Info =
  (% style="color:#037691" %)**Package Includes**:
--* DS20L LoRaWAN Smart Distance Detector x 1
++* LDS12-LB LoRaWAN LiDAR ToF Distance Sensor x 1
  (% style="color:#037691" %)**Dimension and weight**:
@@ -758,6 +758,7 @@
  * Weight / pcs : g
++
  = 10. Support =

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