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 118.1 to 117.1

From version 117.1

edited by Xiaoling
on 2023/11/28 13:37

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To version 113.3

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

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@@ -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.
@@ -31,58 +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:**
++(% 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
++(% 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@(0.1-5m), ±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
--== 1.4 Power Consumption ==
++(% style="color:#037691" %)**LoRa Spec:**
++* 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" %)**Battery Power Mode:**
++(% style="color:#037691" %)**Battery:**
--* Idle: 0.003 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
--(% style="color:#037691" %)**Continuously mode**:
++(% style="color:#037691" %)**Power Consumption**
--* Idle: 21 mA @ 3.3v
--* Max : 360 mA
++* Sleep Mode: 5uA @ 3.3v
++* LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
++== 1.4 Applications ==
--= 2. Configure DS20L to connect to LoRaWAN network =
++* 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: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" %) (%%)
@@ -91,14 +91,15 @@
  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-20231110091447-3.png||height="383" width="752"]](% 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"]]
@@ -126,10 +126,10 @@
  [[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
--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.
@@ -141,7 +141,7 @@
  === 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.
@@ -155,7 +155,7 @@
  [[image:image-20230805103904-1.png||height="131" width="711"]]
--(% style="color:blue" %)**Sensor Model**(%%): For DS20L, this value is 0x24
++(% style="color:blue" %)**Sensor Model**(%%): For LDS12-LB, this value is 0x24
  (% style="color:blue" %)**Firmware Version**(%%): 0x0100, Means: v1.0.0 version
@@ -210,7 +210,7 @@
  (((
--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"]].
@@ -235,7 +235,7 @@
  ==== (% style="color:blue" %)**Battery Info**(%%) ====
--Check the battery voltage for DS20L.
++Check the battery voltage for LDS12-LB.
  Ex1: 0x0B45 = 2885mV
@@ -299,7 +299,7 @@
  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 of GPIO_EXTI .
++Note: The Internet Pin is a separate pin in the screw terminal. See [[pin mapping>>||anchor="H1.8PinDefinitions"]] of GPIO_EXTI .
  **Example:**
@@ -340,7 +340,7 @@
  === 2.3.3 Historical measuring distance, FPORT~=3 ===
--DS20L stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
++LDS12-LB stores sensor values and users can retrieve these history values via the [[downlink command>>||anchor="H2.5.4Pollsensorvalue"]].
  The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.
@@ -365,7 +365,7 @@
  )))
  * (((
--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.
++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.
  )))
  For example, in the US915 band, the max payload for different DR is:
@@ -378,7 +378,7 @@
  **d) DR3:** total payload includes 22 entries of data.
--If DS20L doesn't have any data in the polling time. It will uplink 11 bytes of 0
++If LDS12-LB doesn't have any data in the polling time. It will uplink 11 bytes of 0
  **Downlink:**
@@ -432,7 +432,7 @@
  )))
  (((
--DS20L TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
++LDS12-LB TTN Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>https://github.com/dragino/dragino-end-node-decoder]]
  )))
@@ -461,7 +461,7 @@
  (% style="color:blue" %)**Step 3**(%%)**: Create an account or log in Datacake.**
--(% style="color:blue" %)**Step 4**(%%)**: Search the DS20L and add DevEUI.**
++(% style="color:blue" %)**Step 4**(%%)**: Search the LDS12-LB and add DevEUI.**
  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDDS75%20-%20LoRaWAN%20Distance%20Detection%20Sensor%20User%20Manual/WebHome/1654851029373-510.png?rev=1.1||alt="1654851029373-510.png"]]
@@ -474,25 +474,30 @@
  == 2.5 Datalog Feature ==
--Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, DS20L will store the reading for future retrieving purposes.
++Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, LDS12-LB will store the reading for future retrieving purposes.
  === 2.5.1 Ways to get datalog via LoRaWAN ===
--Set PNACKMD=1, DS20L will wait for ACK for every uplink, when there is no LoRaWAN network, DS20L will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
++Set PNACKMD=1, 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.
  * (((
--a) DS20L will do an ACK check for data records sending to make sure every data arrive server.
++a) LDS12-LB will do an ACK check for data records sending to make sure every data arrive server.
  )))
  * (((
--b) DS20L will send data in **CONFIRMED Mode** when PNACKMD=1, but DS20L 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 DS20L gets a ACK, DS20L will consider there is a network connection and resend all NONE-ACK messages.
++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.
  )))
++Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
++
++[[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"]]
++
++
  === 2.5.2 Unix TimeStamp ===
--DS20L uses Unix TimeStamp format based on
++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"]]
@@ -511,7 +511,7 @@
  User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
--Once DS20L Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to DS20L. If DS20L fails to get the time from the server, DS20L will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
++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.**
@@ -539,7 +539,7 @@
  )))
  (((
--Uplink Internal =5s，means DS20L will send one packet every 5s. range 5~~255s.
++Uplink Internal =5s，means LDS12-LB will send one packet every 5s. range 5~~255s.
  )))
@@ -546,17 +546,101 @@
  == 2.6 Frequency Plans ==
--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.
++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/]]
--3. Configure DS20L
++== 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"]]
++
++
++(((
++(% style="color:blue" %)**① **(%%)Represents the detection blind zone of The LiDAR probe, 0-10cm, within which the output data is unreliable.
++)))
++
++(((
++(% style="color:blue" %)**② **(%%)Represents the operating range of The LiDAR probe detecting black target with 10% reflectivity, 0.1-5m.
++)))
++
++(((
++(% style="color:blue" %)**③ **(%%)Represents the operating range of The LiDAR probe detecting white target with 90% reflectivity, 0.1-12m.
++)))
++
++
++(((
++Vertical Coordinates: Represents the radius of light spot for The LiDAR probe at different distances. The diameter of light spot depends on the FOV of The LiDAR probe (the term of FOV generally refers to the smaller value between the receiving angle and the transmitting angle), which is calculated as follows:
++)))
++
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831797521-720.png?rev=1.1||alt="1654831797521-720.png"]]
++
++(((
++In the formula above, d is the diameter of light spot; D is detecting range; β is the value of the receiving angle of The LiDAR probe, 3.6°. Correspondence between the diameter of light spot and detecting range is given in Table below.
++)))
++
++[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS12-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1654831810009-716.png?rev=1.1||alt="1654831810009-716.png"]]
++
++(((
++If the light spot reaches two objects with different distances, as shown in Figure 3, the output distance value will be a value between the actual distance values of the two objects. For a high accuracy requirement in practice, the above situation should be noticed to avoid the measurement error.
++)))
++
++
++=== 2.7.3  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/]].
@@ -578,10 +578,10 @@
  [[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 ===
@@ -667,10 +667,39 @@
  * Example 2: Downlink Payload: 06000003      ~/~/   Set the interrupt mode to rising edge trigger
++=== 3.3.3  Set Power Output Duration ===
++
++Control the output duration 3V3(pin of VBAT_OUT) . Before each sampling, device will
++
++~1. first enable the power output to external sensor,
++
++2. keep it on as per duration, read sensor value and construct uplink payload
++
++3. final, close the power output.
++
++(% style="color:blue" %)**AT Command: AT+3V3T**
++
++(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
++|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
++|(% style="width:154px" %)AT+3V3T=?|(% style="width:196px" %)Show 3V3 open time.|(% style="width:157px" %)0 (default)
++OK
++|(% style="width:154px" %)AT+3V3T=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
++|(% style="width:154px" %)AT+3V3T=0|(% style="width:196px" %)Always turn on the power supply of 3V3 pin.|(% style="width:157px" %)OK
++|(% style="width:154px" %)AT+3V3T=65535|(% style="width:196px" %)Always turn off the power supply of 3V3 pin.|(% style="width:157px" %)OK
++
++(% style="color:blue" %)**Downlink Command: 0x07**(%%)
++Format: Command Code (0x07) followed by 3 bytes.
++
++The first byte is 01,the second and third bytes are the time to turn on.
++
++* Example 1: Downlink Payload: 07 01 00 00     **~-~-->**   AT+3V3T=0
++* Example 2: Downlink Payload: 07 01 01 F4      **~-~-->**  AT+3V3T=500
++* Example 3: Downlink Payload: 07 01 FF FF      **~-~-->**  AT+3V3T=65535
++
  = 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/]] .
@@ -679,7 +679,7 @@
  (% class="wikigeneratedid" %)
--User can change firmware DS20L to:
++User can change firmware LDS12-LB to:
  * Change Frequency band/ region.
@@ -687,7 +687,7 @@
  * 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:
@@ -697,10 +697,10 @@
  = 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 =
@@ -735,7 +735,7 @@
  = 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**
@@ -760,7 +760,7 @@
  (% 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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