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

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

From 113.3 to 113.2 From 171.3 to 171.2

From version 171.2

edited by Mengting Qiu
on 2023/12/12 11:46

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To version 113.3

edited by Xiaoling
on 2023/11/10 09:28

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--XWiki.ting
++XWiki.Xiaoling

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--**Table of Contents:(% style="display:none" %) (%%)**
++**Table of Contents：**
  {{toc/}}
@@ -22,7 +22,7 @@
  == 1.1 What is LoRaWAN Smart Distance Detector ==
--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 (% 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 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.
@@ -31,68 +31,155 @@
  DS20L is fully compatible with (% style="color:blue" %)**LoRaWAN v1.0.3 Class A protocol**(%%), it can work with a standard LoRaWAN gateway.
++DS20L supports (% style="color:blue" %)**Datalog feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
--[[image:image-20231110102635-5.png||height="402" width="807"]]
++[[image:image-20231110091506-4.png||height="391" width="768"]]
  == 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
++* Accuracy :  ±5cm@(0.1-5m), ±1%@(5m-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:**
--* 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
++(% style="color:#037691" %)**Common DC Characteristics:**
--== 1.4 Power Consumption ==
++* Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v
++* Operating Temperature: -40 ~~ 85°C
++(% style="color:#037691" %)**Probe Specification:**
--(% style="color:#037691" %)**Battery Power Mode:**
++* Storage temperature：-20℃~~75℃
++* Operating temperature : -20℃~~60℃
++* Measure Distance:
++** 0.1m ~~ 12m @ 90% Reflectivity
++** 0.1m ~~ 4m @ 10% Reflectivity
++* Accuracy : ±5cm@(0.1-5m), ±1%@(5m-12m)
++* Distance resolution : 1cm
++* Ambient light immunity : 70klux
++* Enclosure rating : IP65
++* Light source : LED
++* Central wavelength : 850nm
++* FOV : 3.6°
++* Material of enclosure : ABS+PC
++* Wire length : 25cm
--* Idle: 3uA @ 3.3v
--* Max : 360 mA
++(% style="color:#037691" %)**LoRa Spec:**
--(% style="color:#037691" %)**Continuously mode**:
++* Frequency Range,  Band 1 (HF): 862 ~~ 1020 Mhz
++* Max +22 dBm constant RF output vs.
++* RX sensitivity: down to -139 dBm.
++* Excellent blocking immunity
--* Idle: 21 mA @ 3.3v
--* Max : 360 mA
++(% style="color:#037691" %)**Battery:**
--== 1.5 Use Case ==
++* Li/SOCI2 un-chargeable battery
++* Capacity: 8500mAh
++* Self-Discharge: <1% / Year @ 25°C
++* Max continuously current: 130mA
++* Max boost current: 2A, 1 second
--(% class="mark" %)**Regular Distance Detect**
++(% style="color:#037691" %)**Power Consumption**
--[[image:image-20231211220922-1.png||height="352" width="605"]]
++* Sleep Mode: 5uA @ 3.3v
++* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
++== 1.4 Applications ==
--(% class="mark" %)**Counting / Alarm**
--[[image:image-20231211221253-2.png]]
++* 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" %)
--[[image:image-20231211221436-3.png]]
++== 1.5 Sleep mode and working mode ==
--= 2. Configure DS20L to connect to LoRaWAN network =
++(% 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:image-20230805144259-1.png||height="413" width="741"]]
++
++== 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" %) (%%)
@@ -101,53 +101,58 @@
  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-20231110091447-3.png||height="383" width="752"]](% style="display:none" %)
--=== 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"]]
--You can enter this key in the LoRaWAN Server portal. Below is TTN V3 screenshot:
++You can enter this key in the LoRaWAN Server portal. Below is TTN screen shot:
  (% style="color:blue" %)**Register the device**
--[[image:image-20231207144600-2.png||height="703" width="756"]]
++[[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/1654935135620-998.png?rev=1.1||alt="1654935135620-998.png"]]
--(% style="color:blue" %)**Add DevEUI and AppKey**
++(% style="color:blue" %)**Add APP EUI and DEV EUI**
--[[image:image-20231207145121-5.png||height="540" width="756"]]
++[[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-20220611161308-4.png?width=753&height=551&rev=1.1||alt="图片-20220611161308-4.png"]]
++(% style="color:blue" %)**Add APP EUI in the application**
--=== Step 2: Activate DS20L ===
--[[image:image-20231128133704-1.png||height="189" width="441"]]
++[[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-20220611161308-5.png?width=742&height=601&rev=1.1||alt="图片-20220611161308-5.png"]]
--Press the button for 5 seconds to activate the DS20L.
--The switch is switched to (% style="color:blue" %)**E** (%%)and the external power supply is used.
++(% style="color:blue" %)**Add APP KEY**
--The switch is switched to (% style="color:blue" %)**I** (%%)and DS20L will be power by the built-in battery.
++[[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
++
++
++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.
  After join success, it will start to upload messages to TTN and you can see the messages in the panel.
--
  == 2.3 Uplink Payload ==
  === 2.3.1 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.
@@ -159,9 +159,9 @@
  Example parse in TTNv3
--[[image:image-20231206151412-3.png||height="179" width="1070"]]
++[[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
@@ -215,364 +215,443 @@
  === 2.3.2 Uplink Payload, FPORT~=2 ===
--==== (% style="color:red" %)**AT+MOD~=1**(%%) ====
++(((
++LDS12-LB will send this uplink **after** Device Status once join the LoRaWAN network successfully. And LDS12-LB will:
--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.
++periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H3.3.1SetTransmitIntervalTime"]].
--**Uplink Payload totals 10 bytes.**
++Uplink Payload totals 11 bytes.
++)))
  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
--|(% style="background-color:#4f81bd; color:White; width:60px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:White; width:30px" %)**2**|(% style="background-color:#4f81bd; color:White; width:130px" %)**1**|(% style="background-color:#4f81bd; color:White; width:70px" %)**2**|(% style="background-color:#4f81bd; color:White; width:100px" %)**1**|(% style="background-color:#4f81bd; color:White; width:120px" %)**4**
--|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:176px" %)MOD+ Alarm+ Interrupt|(% style="width:74px" %)Distance|(% style="width:100px" %)Sensor State|(% style="width:119px" %)Interrupt Count
++|=(% 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"]]
++)))
--**MOD+ Alarm+ Interrupt:**
++[[image:image-20230805104104-2.png||height="136" width="754"]]
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:400px" %)
--|(% style="background-color:#4f81bd; color:White; width:50px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:White; width:60px" %)**[bit7:bit6]**|(% style="background-color:#4f81bd; color:White; width:70px" %)**bit5**|(% style="background-color:#4f81bd; color:White; width:120px" %)**bit4**
--|(% style="width:80px" %)Value|(% style="width:80px" %)MOD|(% style="width:89px" %)Digital Interrupt
-- |(% style="width:167px" %)(((
--Distance Alarm
--0: No Alarm;
++==== (% style="color:blue" %)**Battery Info**(%%) ====
--1: Alarm
--)))
--Example parse in TTNv3
++Check the battery voltage for LDS12-LB.
--[[image:image-20231209152917-1.png||height="300" width="1172"]]
++Ex1: 0x0B45 = 2885mV
--(% style="color:blue" %)**Battery Info:**
++Ex2: 0x0B49 = 2889mV
--Check the battery voltage for DS20L
--Ex1: 0x0E10 = 3600mV
++==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====
--(% style="color:blue" %)**MOD & Alarm & Interrupt:**
++This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.
--(% style="color:red" %)**MOD:**
--**Example: ** (0x60>>6) & 0x3f =1
++**Example**:
--**0x01:**  Regularly detect distance and report.
--**0x02: ** Uninterrupted measurement (external power supply).
++If payload is: 0105H:  (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree
--(% style="color:red" %)**Alarm:**
++If payload is: FF3FH :  (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.
--When the detection distance exceeds the limit, the alarm flag is set to 1.
--(% style="color:red" %)**Interrupt:**
++==== (% style="color:blue" %)**Distance**(%%) ====
--Whether it is an external interrupt.
++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.
--(% style="color:blue" %)**Distance info:**
  **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.
--(% style="color:blue" %)**Sensor State:**
++==== (% style="color:blue" %)**Distance signal strength**(%%) ====
--Ex1: 0x00: Distance Reading is valid
--Ex2: 0x0x: Distance Reading is invalid
++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.
--(% style="color:blue" %)**Interrupt Count:**
++**Example**:
--If payload is:000007D0H: count = 07D0H =2000
++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:red" %)**AT+MOD~=2**(%%)** ** ====
++**1) When the sensor detects valid data:**
++[[image:image-20230805155335-1.png||height="145" width="724"]]
--The power consumption of uninterrupted measurement is high, and the device needs to use external power supply.(The switch is switched to E and the external power supply is used.)
--[[image:image-20231128133704-1.png||height="189" width="441"]]
++**2) When the sensor detects invalid data:**
++[[image:image-20230805155428-2.png||height="139" width="726"]]
--* **Set over-limit alarm mode: AT+DOL=3,500,244,**(% style="color:red" %)0(%%)**,120**
--(% class="wikigeneratedid" id="HUninterruptedmeasurement.Whenthedistanceexceedsthelimit2CtheoutputIOissethighandreportsarereportedeveryfiveminutes.Thetimecanbesetandpoweredbyanexternalpowersupply.UplinkPayloadtotals11bytes." %)
--Uninterrupted measurement. When the distance exceeds the limit, the output IO high, instant alarm.
++**3) When the sensor is not connected:**
--(% class="wikigeneratedid" %)
--**Uplink Payload totals 9 bytes.**
++[[image:image-20230805155515-3.png||height="143" width="725"]]
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:680px" %)
--|(% style="background-color:#4f81bd; color:white; width:70px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:40px" %)**2**|(% style="background-color:#4f81bd; color:white; width:130px" %)**1**|(% style="background-color:#4f81bd; color:white; width:130px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**
--|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:210px" %)MOD+ DO+ Alarm+ DO flag+ Limit flag|(% style="width:74px" %)Distance |(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
--**MOD+DO+ Alarm+ Do flag+ Limit flag:**
++==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:680px" %)
--|(% style="background-color:#4f81bd; color:white; width:50px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[bit7:bit6]**|(% style="background-color:#4f81bd; color:white; width:90px" %)**bit5**|(% style="background-color:#4f81bd; color:white; width:90px" %)**bit4**|(% style="background-color:#4f81bd; color:white; width:120px" %)**bit3**|(% style="background-color:#4f81bd; color:white; width:100px" %)**[bit2:bit1:bit0]**
--|(% style="width:50px" %)Value|(% style="width:60px" %)MOD|(% style="width:89px" %)(((
++
++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"]] of GPIO_EXTI .
++
++**Example:**
++
++If byte[0]&0x01=0x00 : Normal uplink packet.
++
++If byte[0]&0x01=0x01 : Interrupt Uplink Packet.
++
++
++==== (% style="color:blue" %)**LiDAR temp**(%%) ====
++
++
++Characterize the internal temperature value of the sensor.
++
++**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℃.
++
++
++==== (% style="color:blue" %)**Message Type**(%%) ====
++
++
  (((
--DO
++For a normal uplink payload, the message type is always 0x01.
  )))
  (((
--0：Within limit
--
--1：Out of limit
++Valid Message Type:
  )))
--)))|(% style="width:73px" %)(((
--Alarm
--0: No Alarm;
++(% 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
++|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload
--1: Alarm
--)))|(% style="width:150px" %)(((
--DO flag
++[[image:image-20230805150315-4.png||height="233" width="723"]]
--0：the over-limit alarm mode
--1：the person or object count mode
--)))|(% style="width:103px" %)Limit flag
--(0~~3)
++=== 2.3.3 Historical measuring distance, FPORT~=3 ===
--Example parse in TTNv3
--[[image:image-20231209171127-3.png||height="374" width="1209"]]
++LDS12-LB stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
--(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
++The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
--(% style="color:red" %)**MOD:**
++(% 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
--**Example: ** (0x60>>6) & 0x3f =1
++**Interrupt flag & Interrupt level:**
--**0x01:**  Regularly detect distance and report.
--**0x02: ** Uninterrupted measurement (external power supply).
++(% 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
++)))
--(% style="color:red" %)**Alarm:**
++* (((
++Each data entry is 11 bytes and has the same structure as [[Uplink Payload>>||anchor="H2.3.2UplinkPayload2CFPORT3D2"]], to save airtime and battery, LDS12-LB will send max bytes according to the current DR and Frequency bands.
++)))
--When the detection distance exceeds the limit, the alarm flag is set to 1.
++For example, in the US915 band, the max payload for different DR is:
--(% style="color:red" %)**DO:**
++**a) DR0:** max is 11 bytes so one entry of data
--Shows the DO pin status, while there is alarm trigger, The DO pin will be set to high (3.3v), It will be set to 0 low level when there is no alarm.
++**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
--(% style="color:red" %)**Threshold Flag for Alarm:**
++**c) DR2:** total payload includes 11 entries of data
--Mode for setting threshold: **0~~3**
++**d) DR3:** total payload includes 22 entries of data.
--**0:** Distance limit range is not enabled, alarm:0.
++If LDS12-LB doesn't have any data in the polling time. It will uplink 11 bytes of 0
--**1:** Trigger Alarm if distance exceed the range between lower and upper.
--**2:** Trigger Alarm if distance smaller than the upper limit.
++**Downlink:**
--**3: **Trigger Alarm if distance bigger than the lower limit .
++0x31 64 CC 68 0C 64 CC 69 74 05
++[[image:image-20230805144936-2.png||height="113" width="746"]]
--(% style="color:blue" %)**Distance:**
++**Uplink:**
-- Actual sampling distance values.
++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
--**Example:**
--**AT+DOL=1,500,244,**(% style="color:red" %)0(%%)**,120  **
++**Parsed Value:**
--The distance is detected every 120ms.
++[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]
--When the actual detection value is within the range of [244mm,500mm], the data is uploaded in the normal TDC time.
--When the actual detection value is outside the range of [244mm,500mm], the uplink data will be immediately alerted.
++[360,176,30,High,True,2023-08-04 02:53:00],
--If payload is: 0708H: distance = 0708H = 1800 mm
++[355,168,30,Low,False,2023-08-04 02:53:29],
++[245,211,30,Low,False,2023-08-04 02:54:29],
--(% style="color:blue" %)**Upper limit:**
++[57,700,30,Low,False,2023-08-04 02:55:29],
--Show the pre-set upper limit in Hex, Unit: mm.
++[361,164,30,Low,True,2023-08-04 02:56:00],
--Ex: 01F4(H)=500mm
++[337,184,30,Low,False,2023-08-04 02:56:40],
++[20,4458,30,Low,False,2023-08-04 02:57:40],
--(% style="color:blue" %)**Lower limit:**
++[362,173,30,Low,False,2023-08-04 02:58:53],
--Show the pre-set lower limit in Hex, Unit: mm.
--Ex: 0xF4(H)=244mm
++**History read from serial port：**
++[[image:image-20230805145056-3.png]]
--* **Set the person or object count mode: AT+DOL=1,500,244,**(% style="color:red" %)1(%%)**,120**
--Continuous measurement, detect and count people or things passing by in distance limit mode.
++=== 2.3.4 Decode payload in The Things Network ===
--**Uplink Payload totals 11 bytes.**
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:680px" %)
--|(% style="background-color:#4f81bd; color:white; width:70px" %)**Size(bytes)**|(% style="background-color:#4f81bd; color:white; width:40px" %)**2**|(% style="background-color:#4f81bd; color:white; width:130px" %)**1**|(% style="background-color:#4f81bd; color:white; width:130px" %)**4**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**|(% style="background-color:#4f81bd; color:white; width:70px" %)**2**
--|(% style="width:91px" %)Value|(% style="width:41px" %)BAT|(% style="width:210px" %)MOD+ DO+ Alarm+ DO flag+ Limit flag|(% style="width:176px" %)Distance limit  alarm count|(% style="width:100px" %)Upper limit|(% style="width:119px" %)Lower limit
++While using TTN network, you can add the payload format to decode the payload.
--**MOD+DO+ Alarm+ Do flag+ Limit flag:**
++[[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"]]
--(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:680px" %)
--|(% style="background-color:#4f81bd; color:white; width:50px" %)**Size(bit)**|(% style="background-color:#4f81bd; color:white; width:60px" %)**[bit7:bit6]**|(% style="background-color:#4f81bd; color:white; width:90px" %)**bit5**|(% style="background-color:#4f81bd; color:white; width:90px" %)**bit4**|(% style="background-color:#4f81bd; color:white; width:120px" %)**bit3**|(% style="background-color:#4f81bd; color:white; width:100px" %)**[bit2:bit1:bit0]**
--|(% style="width:50px" %)Value|(% style="width:60px" %)MOD|(% style="width:89px" %)(((
++
  (((
--DO
++The payload decoder function for TTN is here:
  )))
  (((
--0：Within limit
++LDS12-LB TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
++)))
--1：Out of limit
++
++== 2.4 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:
  )))
--)))|(% style="width:73px" %)(((
--Alarm
--0: No Alarm;
--1: Alarm
--)))|(% style="width:150px" %)(((
--DO flag
++(((
++(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
++)))
--0：the over-limit alarm mode
++(((
++(% 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:**
++)))
--1：the person or object count mode
--)))|(% style="width:103px" %)Limit flag
--(0~~3)
--Example parse in TTNv3
++[[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"]]
--[[image:image-20231209173457-5.png||height="277" width="1098"]]
--(% style="color:blue" %)**MOD & Alarm & Do & Limit flag:**
++[[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"]]
--(% style="color:red" %)**MOD:**
--**Example: ** (0x60>>6) & 0x3f =1
++(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
--**0x01:**  Regularly detect distance and report.
--**0x02: ** Uninterrupted measurement (external power supply).
++(% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.**
--(% style="color:red" %)**Alarm:**
++[[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"]]
--When the detection distance exceeds the limit, the alarm flag is set to 1.
--(% style="color:red" %)**Do:**
++After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
--Shows the DO pin status, while there is alarm trigger, The DO pin will be set to high (3.3v), It will be set to 0 low level when there is no alarm.
++[[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"]]
--(% style="color:red" %)**Threshold Flag for Alarm:**
--Mode for setting threshold: **0~~3**
++== 2.5 Datalog Feature ==
--**0:** does not use upper and lower limits
--**1:** Use upper and lower limits
++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.
--**2:** Less than the upper limit
--**3: **Greater than the lower limit
++=== 2.5.1 Ways to get datalog via LoRaWAN ===
--(% style="color:blue" %)**Distance limit alarm count:**
++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.
--People or objects are collected and counted within a limited distance.
++* (((
++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.
++)))
--The detection of a stationary person or object at each sampling time will be repeated three times, and the fourth sampling count will be added by 1.
++Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
--**Example:**
++[[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"]]
--**AT+DOL=1,500,244,**(% style="color:red" %)1(%%)**,120   **
--People or objects passing within the distance range of [244mm,500mm] are detected and counted every 120ms.
++=== 2.5.2 Unix TimeStamp ===
--If payload is: 0x56H, interrupt count =0x56H =86
++LDS12-LB uses Unix TimeStamp format based on
--(% style="color:blue" %)**Upper limit:**
++[[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"]]
--Show the pre-set upper limit in Hex, Unit: mm.
++User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
--Ex: 01F4(H)=500mm
++Below is the converter example
++[[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"]]
--(% style="color:blue" %)**Lower limit:**
--Show the pre-set lower limit in Hex, Unit: mm.
++So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
--Ex: 0xF4(H)=244mm
++=== 2.5.3 Set Device Time ===
--== 2.4 Decode payload in The Things Network ==
++User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
--While using TTN network, you can add the payload format to decode the payload.
++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).
--[[image:image-20231206143515-1.png||height="534" width="759"]]
++(% 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.**
--(((
--The payload decoder function for TTN is here:
--)))
++=== 2.5.4 Poll sensor value ===
--(((
--DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
--)))
++Users can poll sensor values based on timestamps. Below is the downlink command.
--== 2.5 Show Data in DataCake IoT Server ==
++(% 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
++(((
++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.
++)))
  (((
--[[DATACAKE>>url:https://datacake.co/]] provides a human friendly interface to show the sensor data, onhuman-friendlya in TTN, we can use [[DATACAKE>>url:https://datacake.co/]] to connect to TTN and see the data in DATACAKE. Below are the steps:
++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"]]
  )))
--
  (((
--(% style="color:blue" %)**Step 1**(%%)**: Be sure that your device is programmed and properly connected to the network at this time.**
++Is to check 2021/11/12 12:00:00 to 2021/11/12 15:00:00's data
  )))
  (((
--(% 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:**
++Uplink Internal =5s，means LDS12-LB will send one packet every 5s. range 5~~255s.
  )))
--[[image:image-20231207153532-6.png||height="562" width="861"]]
++== 2.6 Frequency Plans ==
--[[image:image-20231207155940-8.png]]
++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.
--For more detailed instructions, refer to the following instructions: [[Welcome - Datacake Docs>>url:https://docs.datacake.de/]]
++[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
--[[image:image-20231207160733-11.png||height="429" width="759"]]
++== 2.7 LiDAR ToF Measurement ==
--(% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
++=== 2.7.1 Principle of Distance Measurement ===
--(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
--[[image:image-20231207160343-10.png||height="665" width="705"]]
++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"]]
--After added, the sensor data arrive TTN V3, it will also arrive and show in Datacake.
--[[image:image-20231129100454-2.png||height="501" width="928"]]
++=== 2.7.2 Distance Measurement Characteristics ===
--== 2.6 Frequency Plans ==
++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"]]
--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.
--[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
++(((
++(% 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.
++)))
--= 3. Configure DS20L =
++(((
++(% 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.
++)))
++
++
++=== 2.7.3  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.
++
++=== 2.7.4  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 ==
--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/]].
@@ -594,10 +594,10 @@
  [[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 ==
--Below commands only valid for DS20L, as below:
++These commands only valid for LDS12-LB, as below:
  === 3.3.1 Set Transmit Interval Time ===
@@ -639,7 +639,7 @@
  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
@@ -662,7 +662,7 @@
  the mode is 0 =Disable Interrupt
  )))
  |(% style="width:154px" %)(((
--AT+INTMOD=3
++AT+INTMOD=2
  (default)
  )))|(% style="width:196px" %)(((
@@ -683,121 +683,39 @@
  * 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(pin of VBAT_OUT) . 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: **0x0A01      ~/~/  Same as AT+MOD=1
--
--* **Example:** 0x0A02       ~/~/  Same as AT+MOD=2
--
--=== 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="width:154px" %)AT+3V3T=65535|(% style="width:196px" %)Always turn off the power supply of 3V3 pin.|(% style="width:157px" %)OK
--(% 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" %) Parameter
--|(% rowspan="11" style="color:blue; width:120px" %)(((
--
++(% 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
++* Example 3: Downlink Payload: 07 01 FF FF      **~-~-->**  AT+3V3T=65535
--
--
--
--
--
--
--
--**AT+DOL=1,1800,3,0,400**
--)))|(% rowspan="4" 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 upper limit
--|(% style="width:251px" %)3: Greater than the lower 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" %)(((
--100~~10000ms
--
--
--)))
--
--(% style="color:blue" %)**Downlink Command: 0x07**
--
--Format: Command Code (0x07) followed by 9 bytes.
--
--If the downlink payload=**07 01 0708 0064 00 0190**, it means set the END Node's limit mode to 0x01,upper limit value to 0x0708=1800(mm), lower limit value to 0x0064=100(mm), to over-limit alarm(0x00) ,the sampling time to 0x0190=400(ms), while type code is 0x07.
--
--* Example 0: Downlink Payload: 07 00 0000 0000 00 0190      **~-~-->**   AT+MOD=0,0,0,0,400
--
--* Example 1: Downlink Payload: 070107080064000190      **~-~-->**   AT+MOD=1,1800,100,0,400
--
--* Example 2: Downlink Payload: 070200000064000190      **~-~-->**   AT+MOD=2,1800,100,0,400
--
--* Example 3: Downlink Payload: 070300000064000190      **~-~-->**   AT+MOD=3,0,100,0,400
--
--(% style="color:Red" %)**Note: The over-limit alarm is applied to MOD1 and MOD2.**
--
--**For example:**
--
--* **AT+MOD=1**
--
--         **AT+DOL=1,500,244,**(% style="color:blue" %)0(%%)**,300**
--
--Send data according to the normal TDC time. If the mode limit is exceeded, the alarm flag is set to 1:
--
--[[image:image-20231211113204-2.png||height="292" width="1093"]]
--
--* **AT+MOD=2  **
--
--         **AT+DOL=1,500,244,**(% style="color:blue" %)0(%%)**,300**
--
--If the mode limit is exceeded, the data is immediately uplink and the alarm flag is set to 1:
--
--[[image:image-20231211114932-3.png||height="277" width="1248"]]
--
--
--
--
--
  = 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/]] .
@@ -806,7 +806,7 @@
  (% class="wikigeneratedid" %)
--User can change firmware DS20L to:
++User can change firmware LDS12-LB to:
  * Change Frequency band/ region.
@@ -814,7 +814,7 @@
  * 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:
@@ -824,39 +824,12 @@
  = 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"]]
--== 6.2 DS20L programming line ==
--
--
--缺图 后续补上
--
--feature:
--
--for AT commands
--
--Update the firmware of DS20L
--
--Support interrupt mode
--
--
--== 6.3 LiDAR probe position ==
--
--
--[[image:1701155390576-216.png||height="285" width="307"]]
--
--The black oval hole in the picture is the LiDAR probe.
--
--
--== 6.4 Interface definition ==
--
--[[image:image-20231128151132-2.png||height="305" width="557"]]
--
--
  = 7. Trouble Shooting =
  == 7.1 AT Command input doesn't work ==
@@ -889,7 +889,7 @@
  = 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**
@@ -914,7 +914,7 @@
  (% 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**:

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