LDS40-NB -- NB-IoT LiDAR ToF Distance Sensor User Manual

The Dragino LDS40-NB is a (% style="color:blue" %)**NB-IoT LiDAR ToF (Time of Flight) Distance Sensor**(%%) for Internet of Things solution. It is capable of measuring the distance to objects as close as 0m to 40m. The LiDAR probe uses (% style="color:blue" %)**laser induction technology**(%%) for distance measurement.

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The LDS40-NB 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.

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It detects the distance between the measured object and the sensor, and uploads the value via wireless to NB-IoT IoT Server.

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LDS40-NB supports different uplink methods including (% style="color:blue" %)**MQTT, MQTTs, UDP & TCP**(%%) for different application requirement, and support uplinks to various IoT Servers.

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LDS40-NB (% style="color:blue" %)**supports BLE configure **(%%)and(% style="color:blue" %)** OTA update**(%%) which make user easy to use.

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LDS40-NB is powered by (% style="color:blue" %)**8500mAh Li-SOCI2 battery**(%%), it is designed for long-term use up to several years.

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LDS40-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.

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[[image:image-20231017170816-2.png||height="324" width="878"]]

== 1.2 Features ==

* NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD

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* Ultra-low power consumption

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* Laser technology for distance detection

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* Measure Distance: 0.1m ~~ 40m @ 90% Reflectivity; 0.1m ~~ 13.5m @ 10% Reflectivity

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* Distance resolution: 1cm

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* Multiply Sampling and one uplink

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* Support Bluetooth v5.1 remote configure and update firmware

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* Uplink on periodically

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* Downlink to change configure

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* IP65 Waterproof Enclosure

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* 8500mAh Battery for long term use

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* Nano SIM card slot for NB-IoT SIM

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== 1.3 Specification ==

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(% style="color:blue" %)**Common DC Characteristics:**

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* Supply Voltage: 2.5v ~~ 3.6v

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* Operating Temperature: -40 ~~ 85°C

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(% style="color:blue" %)**Probe Specification:**

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* Storage temperature：-30°C~~80°C

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* Operating temperature: -20°C~~60°C

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* Measure Distance:

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** 0.1m ~~ 40m @ 90% Reflectivity

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** 0.1m ~~ 13.5m @ 10% Reflectivity

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* Distance resolution: 1cm

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* Ambient light immunity: 100klux

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* Enclosure rating : IP65

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* Light source : VCSEL

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* Central wavelength : 850nm

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* FOV : 3°

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* Material of enclosure : ABS+PC

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* Wire length : 75cm

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(% style="color:blue" %)**NB-IoT Spec:**

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(% style="color:#037691" %)**NB-IoT Module: BC660K-GL**

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(% style="color:#037691" %)**Support Bands:**

* B1 @H-FDD: 2100MHz

* B2 @H-FDD: 1900MHz

* B3 @H-FDD: 1800MHz

* B4 @H-FDD: 2100MHz

* B5 @H-FDD: 860MHz

* B8 @H-FDD: 900MHz

* B12 @H-FDD: 720MHz

* B13 @H-FDD: 740MHz

* B17 @H-FDD: 730MHz

* B18 @H-FDD: 870MHz

* B19 @H-FDD: 870MHz

* B20 @H-FDD: 790MHz

* B25 @H-FDD: 1900MHz

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* B28 @H-FDD: 750MHz

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* B66 @H-FDD: 2000MHz

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* B70 @H-FDD: 2000MHz

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* B85 @H-FDD: 700MHz

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(% style="color:blue" %)**Battery:**

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* Li/SOCI2 un-chargeable battery

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* Capacity: 8500mAh

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* Self Discharge: <1% / Year @ 25°C

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* Max continuously current: 130mA

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* Max boost current: 2A, 1 second

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(% style="color:blue" %)**Power Consumption**

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* STOP Mode: 10uA @ 3.3v

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* Max transmit power: 350mA@3.3v

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== 1.4 Applications ==

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* Horizontal distance measurement

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* Parking management system

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* Object proximity and presence detection

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* Intelligent trash can management system

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* Robot obstacle avoidance

* Automatic control

* Sewer

== 1.5 Sleep mode and working mode ==

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(% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any NB-IoT activate. This mode is used for storage and shipping to save battery life.

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(% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as NB-IoT Sensor to Join NB-IoT 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.

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== 1.6 Button & LEDs ==

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[[image:Main.User Manual for LoRaWAN End Nodes.D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual.WebHome@1675071855856-879.png]]

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(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

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|=(% 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**

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|(% style="width:167px" %)Pressing ACT between 1s < time < 3s|(% style="width:117px" %)Send an uplink|(% style="width:225px" %)(((

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If sensor has already attached to NB-IoT network, sensor will send an uplink packet, (% style="color:blue" %)**blue led** (%%)will blink once.

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Meanwhile, BLE module will be active and user can connect via BLE to configure device.

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|(% style="width:167px" %)Pressing ACT for more than 3s|(% style="width:117px" %)Active Device|(% style="width:225px" %)(((

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(% 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 attach NB-IoT network.

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(% style="color:green" %)**Green led**(%%) will solidly turn on for 5 seconds after joined in network.

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Once sensor is active, BLE module will be active and user can connect via BLE to configure device, no matter if device attach NB-IoT network or not.

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|(% 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.

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(% style="color:red" %)**Note: When the device is executing a program, the buttons may become invalid. It is best to press the buttons after the device has completed the program execution.**

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== 1.7 BLE connection ==

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LDS40-NB support BLE remote configure and firmware update.

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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:

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* Press button to send an uplink

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* Press button to active device.

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* Device Power on or reset.

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If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.

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== 1.8 Pin Definitions & Switch ==

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS12-LB_LoRaWAN_LiDAR_ToF_Distance_Sensor_User_Manual/WebHome/image-20230805144259-1.png?width=741&height=413&rev=1.1||alt="image-20230805144259-1.png"]]

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=== 1.8.1 Jumper JP2 ===

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Power on Device when put this jumper.

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=== 1.8.2 BOOT MODE / SW1 ===

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**1)** (% style="color:blue" %)**ISP**(%%): upgrade mode, device won't have any signal in this mode. but ready for upgrade firmware. LED won't work. Firmware won't run.

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**2)** (% style="color:blue" %)**Flash**(%%): work mode, device starts to work and send out console output for further debug

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=== 1.8.3 Reset Button ===

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Press to reboot the device.

== 1.9 Mechanical ==

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675143884058-338.png?rev=1.1||alt="1675143884058-338.png"]]

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675143899218-599.png?rev=1.1||alt="1675143899218-599.png"]]

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/D20-LBD22-LBD23-LB_LoRaWAN_Temperature_Sensor_User_Manual/WebHome/1675143909447-639.png?rev=1.1||alt="1675143909447-639.png"]]

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(% style="color:blue" %)**Probe Mechanical:**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS40-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/1666948963951-832.png?rev=1.1||alt="1666948963951-832.png"]]

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= 2. Use LDS40-NB to communicate with IoT Server =

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== 2.1 Send data to IoT server via NB-IoT network ==

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The LDS40-NB is equipped with a NB-IoT module, the pre-loaded firmware in LDS40-NB will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module. The NB-IoT network will forward this value to IoT server via the protocol defined by LDS40-NB.

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Below shows the network structure:

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS40-NB_NB-IoT_LiDAR_ToF_Distance_Sensor_User_Manual/WebHome/image-20231017170816-2.png?width=878&height=324&rev=1.1||alt="image-20231017170816-2.png"]]

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There are two version: (% style="color:blue" %)**-GE**(%%) and (% style="color:blue" %)**-1D**(%%) version of LDS40-NB.

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(% style="color:blue" %)**GE Version**(%%): This version doesn't include SIM card or point to any IoT server. User needs to use AT Commands to configure below two steps to set LDS12-NB send data to IoT server.

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* Install NB-IoT SIM card and configure APN. See instruction of [[Attach Network>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H2.AttachNetwork]].

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* Set up sensor to point to IoT Server. See instruction of [[Configure to Connect Different Servers>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.Configuretoconnecttodifferentservers]].

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Below shows result of different server as a glance.

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(% border="1" cellspacing="4" style="width:515px" %)

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|(% style="background-color:#4f81bd; color:white; width:100px" %)**Servers**|(% style="background-color:#4f81bd; color:white; width:300px" %)**Dash Board**|(% style="background-color:#4f81bd; color:white; width:115px" %)**Comments**

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|(% style="width:127px" %)[[Node-Red>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.5A0Node-RedA028viaA0MQTT29]]|(% style="width:385px" %)(((

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(% style="text-align:center" %)

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[[image:image-20230819113244-8.png||height="183" width="367"]]

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)))|(% style="width:170px" %)

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|(% style="width:127px" %)[[DataCake>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.4Datacake]]|(% style="width:385px" %)(((

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(% style="text-align:center" %)

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[[image:image-20230819113244-9.png||height="119" width="367"]]

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)))|(% style="width:170px" %)

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|(% style="width:127px" %)[[Tago.IO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.7A0Tago.ioA028viaA0MQTT29]]|(% style="width:385px" %) |(% style="width:170px" %)

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|(% style="width:127px" %)[[General UDP>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.1GeneralA0UDPA0Connection]]|(% style="width:385px" %)Raw Payload. Need Developer to design Dash Board|(% style="width:170px" %)

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|(% style="width:127px" %)[[General MQTT>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.2GeneralA0MQTTA0Connection]]|(% style="width:385px" %)Raw Payload. Need Developer to design Dash Board|(% style="width:170px" %)

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|(% style="width:127px" %)[[ThingSpeak>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.3A0ThingSpeakA028viaA0MQTT29]]|(% style="width:385px" %)(((

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(% style="text-align:center" %)

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[[image:image-20230819113244-10.png||height="104" width="367"]]

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)))|(% style="width:170px" %)

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|(% style="width:127px" %)[[ThingsBoard>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.6A0ThingsBoard.CloudA028viaA0MQTT29]]|(% style="width:385px" %)(((

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(% style="text-align:center" %)

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[[image:image-20230819113244-11.png||height="141" width="367"]]

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)))|(% style="width:170px" %)

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(% style="color:blue" %)**1D Version**(%%): This version has 1NCE SIM card pre-installed and configure to send value to DataCake. User Just need to select the sensor type in DataCake and Activate LDS40-NB and user will be able to see data in DataCake. See here for [[DataCake Config Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/#H3.4Datacake]].

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== 2.2 Payload Types ==

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To meet different server requirement, LDS40-NB supports different payload type.

**Includes:**

* [[General JSON format payload>>||anchor="H2.2.1GeneralJsonFormat28Type3D529"]]. (Type=5)

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* [[HEX format Payload>>||anchor="H2.2.2HEXformatPayload28Type3D029"]]. (Type=0)

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* [[ThingSpeak Format>>||anchor="H2.2.4ThingSpeakPayload28Type3D129"]]. (Type=1)

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* [[ThingsBoard Format>>||anchor="H2.2.3ThingsBoardPayload28Type3D329"]]. (Type=3)

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User can specify the payload type when choose the connection protocol. Example:

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(% style="color:#037691" %)**AT+PRO=2,0** (%%) ~/~/ Use UDP Connection & hex Payload

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(% style="color:#037691" %)**AT+PRO=2,5** (%%) ~/~/ Use UDP Connection & Json Payload

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(% style="color:#037691" %)**AT+PRO=3,5 ** (%%) ~/~/ Use MQTT Connection & Json Payload

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=== 2.2.1 General Json Format(Type~=5) ===

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This is the General Json Format. As below:

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(% style="color:#4472c4" %)**{"IMEI":"866207052559857","Model":"LDS40-NB","ds18b20_temperature":-0.1,"distance":352,"distance signal strengh":1307,"temperature":30,"battery":3.52,"signal":21,"1":{2175,736,46,2023/11/06 07:05:43},"2":{2204,843,51,2023/11/06 06:42:58},"3":{2252,995,58,2023/11/06 06:27:58},"4":{2235,396,30,2023/11/06 05:58:02},"5":{2251,399,30,2023/11/06 05:29:55},"6":{2255,397,30,2023/11/06 05:14:54},"7":{2262,393,29,2023/11/06 04:59:54},"8":{2271,392,29,2023/11/06 04:44:54}}**

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[[image:image-20231106153954-1.png||height="726" width="984"]]

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(% style="color:red" %)**Notice, from above payload:**

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* DS18b20_temperature, Distance, Distance signal strength, Temperature, Battery & Signal are the value at uplink time.

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* Json entry 1 ~~ 8 are the last 1 ~~ 8 sampling data as specify by (% style="color:#037691" %)**AT+NOUD=8 ** (%%)Command. Each entry includes (from left to right): Temperature, Humidity, Sampling time.

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=== 2.2.2 HEX format Payload(Type~=0) ===

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This is the HEX Format. As below:

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(% style="color:#4472c4" %)**f86620705837844309640db41201000159650c02e702ec650c00a7038f650bf46302be650beba702c1650be82302c1650be49f02c1650be0c10100650baf4f00dd650abf95**

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[[image:image-20230921165015-2.png||height="195" width="965"]]

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If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data.

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[[image:image-20230921165050-3.png||height="621" width="905"]]

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(% style="color:blue" %)**Version:**

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These bytes include the hardware and software version.

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(% style="color:#037691" %)**Higher byte:**(%%) Specify Sensor Model: 0x0F for LDS40-NB

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(% style="color:#037691" %)**Lower byte:**(%%) Specify the software version: 0x64=100, means firmware version 1.0.0

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(% style="color:blue" %)**BAT (Battery Info):**

Ex1: 0x0DB4 = 3508mV

(% style="color:blue" %)**DS18B20 Temperature sensor:**

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This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.

**Example**:

If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree

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If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.

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(% style="color:blue" %)**Distance:**

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Represents the distance value of the measurement output, the default unit is cm, and the value range parsed as a decimal number is **0-4000**. In actual use, when the signal strength value Strength.

**Example**:

If the data you get from the register is __**0x0B 0xEA**__, the distance between the sensor and the measured object is **0BEA(H) = 3050 (D)/10 = 305cm**.

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(% style="color:blue" %)**Distance signal strength:**

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Refers to the signal strength, the default output value will be between 0-65535. When the ranging gear is fixed, the farther the ranging, the lower the signal strength.

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In actual use, when the signal strength value Strength≤60, the measured value of Dist is considered unreliable, and the default output is 4500. When the signal strength is greater than 60 and the actual distance is and the actual distance is 45~~60m, the output value of Dist is 4500. When the signal strength is greater than 60 and the actual distance is more than 60m, there will be over-period data appearing as 0 or other abnormal values.

**Example**:

If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.

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Customers can judge whether they need to adjust the environment based on the signal strength.

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**1) When the sensor detects valid data:**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS40-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20221028172727-3.png?width=1178&height=231&rev=1.1||alt="image-20221028172727-3.png"]]

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**2) When the sensor detects invalid data:**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS40-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20221028172727-4.png?width=1183&height=232&rev=1.1||alt="image-20221028172727-4.png"]]

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**3) When the sensor is not connected:**

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS40-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20221028172727-5.png?width=1181&height=220&rev=1.1||alt="image-20221028172727-5.png"]]

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(% style="color:blue" %)**Interrupt Pin & Interrupt Level:**

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This data field shows if this packet is generated by interrupt or not.

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(% style="color:red" %)**Note: The Internet Pin is a separate pin in the screw terminal. **

**Example:**

If byte[0]&0x01=0x00 : Normal uplink packet.

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If byte[0]&0x01=0x01 : Interrupt Uplink Packet.

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(% style="color:blue" %)**LiDAR temp:**

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Characterize the internal temperature value of the sensor.

**Example: **

If payload is: 1C(H) <<24>>24=28(D), LiDAR temp=28°C.

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If payload is: F2(H) <<24>>24=-14(D), LiDAR temp=-14°C.

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(% style="color:blue" %)**Message Type**

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For a normal uplink payload, the message type is always 0x01.

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Valid Message Type:

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(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)

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|=(% style="width: 160px;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**

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|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload

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|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload

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[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS40-LB_LoRaWAN_LiDAR_ToF_Distance_Sensor_User_Manual/WebHome/image-20230805161129-3.png?width=745&height=219&rev=1.1||alt="image-20230805161129-3.png"]]

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=== 2.2.3 ThingsBoard Payload(Type~=3) ===

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Type3 payload special design for ThingsBoard, it will also configure other default server to ThingsBoard.

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430

(% style="color:#4472c4" %)** {"IMEI": "866207058378443","Model": "LDS40-NB", "distance": 491,"battery": 3.57,"signal": 22}**

431

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[[image:image-20230922091736-3.png||height="517" width="845"]]

433

434

435

=== 2.2.4 ThingSpeak Payload(Type~=1) ===

436

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438

This payload meets ThingSpeak platform requirement. It includes only four fields. Form 1~~3 are:

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440

Distance, Battery & Signal. This payload type only valid for ThingsSpeak Platform

As below:

(% style="color:#4472c4" %)**field1=Distance value&field2=Battery value&field3=Singal value**

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[[image:image-20230921174457-5.png||height="556" width="849"]]

447

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449

== 2.3 Uplink Payload ==

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451

=== 2.3.1 Uplink Payload, FPORT~=2 ===

(((

LDS40-NB will send this uplink **after** Device Status once join the NB-IoT network successfully. And LDS40-NB will:

456

457

periodically send this uplink every 20 minutes, this interval [[can be changed>>||anchor="H2.8SetTransmitIntervalTime"]].

458

459

Uplink Payload totals 11 bytes.

460

)))

461

462

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

463

|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((

464

**Size(bytes)**

465

)))|=(% 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**

466

|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)[[BAT>>||anchor="HBatteryInfo"]]|(% style="width:62.5px" %)(((

467

[[Temperature DS18B20>>||anchor="HDS18B20Temperaturesensor"]]

468

)))|[[Distance>>||anchor="HDistance"]]|[[Distance signal strength>>||anchor="HDistancesignalstrength"]]|(% style="width:122px" %)(((

469

[[Interrupt flag & Interrupt_level>>||anchor="HInterruptPin26A0InterruptLevel"]]

470

)))|(% style="width:54px" %)[[LiDAR temp>>||anchor="HLiDARtemp"]]|(% style="width:96px" %)(((

471

[[Message Type>>||anchor="HMessageType"]]

472

)))

473

474

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS12-LB_LoRaWAN_LiDAR_ToF_Distance_Sensor_User_Manual/WebHome/image-20230805104104-2.png?width=754&height=136&rev=1.1||alt="image-20230805104104-2.png"]]

475

476

477

==== (% style="color:blue" %)**Battery Info**(%%) ====

478

479

Check the battery voltage for LDS40-NB.

Ex1: 0x0B45 = 2885mV

Ex2: 0x0B49 = 2889mV

==== (% style="color:blue" %)**DS18B20 Temperature sensor**(%%) ====

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488

This is optional, user can connect external DS18B20 sensor to the +3.3v, 1-wire and GND pin . and this field will report temperature.

**Example**:

If payload is: 0105H: (0105 & FC00 == 0), temp = 0105H /10 = 26.1 degree

493

494

If payload is: FF3FH : (FF3F & FC00 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees.

495

496

497

==== (% style="color:blue" %)**Distance**(%%) ====

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499

Represents the distance value of the measurement output, the default unit is cm, and the value range parsed as a decimal number is **0-4000**. In actual use, when the signal strength value Strength.

**Example**:

If the data you get from the register is 0x0B 0xEA, the distance between the sensor and the measured object is **0BEA(H) = 3050 (D)/10 = 305cm**.

504

505

506

==== (% style="color:blue" %)**Distance signal strength**(%%) ====

507

508

Refers to the signal strength, the default output value will be between 0-65535. When the ranging gear is fixed, the farther the ranging, the lower the signal strength.

509

510

In actual use, when the signal strength value Strength≤60, the measured value of Dist is considered unreliable, and the default output is 4500. When the signal strength is greater than 60 and the actual distance is and the actual distance is 45~~60m, the output value of Dist is 4500. When the signal strength is greater than 60 and the actual distance is more than 60m, there will be over-period data appearing as 0 or other abnormal values.

**Example**:

If payload is: 01D7(H)=471(D), distance signal strength=471, 471>100,471≠65535, the measured value of Dist is considered credible.

515

516

Customers can judge whether they need to adjust the environment based on the signal strength.

517

518

519

**1) When the sensor detects valid data:**

520

521

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS40-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20221028172727-3.png?width=1178&height=231&rev=1.1||alt="image-20221028172727-3.png"]]

522

523

524

**2) When the sensor detects invalid data:**

525

526

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS40-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20221028172727-4.png?width=1183&height=232&rev=1.1||alt="image-20221028172727-4.png"]]

527

528

529

**3) When the sensor is not connected:**

530

531

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLDS40-LoRaWAN%20LiDAR%20ToF%20Distance%20Sensor%20User%20Manual/WebHome/image-20221028172727-5.png?width=1181&height=220&rev=1.1||alt="image-20221028172727-5.png"]]

532

533

534

==== (% style="color:blue" %)**Interrupt Pin & Interrupt Level**(%%) ====

535

536

537

This data field shows if this packet is generated by interrupt or not.

538

539

(% style="color:red" %)**Note: The Internet Pin is a separate pin in the screw terminal. **

**Example:**

If byte[0]&0x01=0x00 : Normal uplink packet.

544

545

If byte[0]&0x01=0x01 : Interrupt Uplink Packet.

546

547

548

==== (% style="color:blue" %)**LiDAR temp**(%%) ====

549

550

551

Characterize the internal temperature value of the sensor.

552

553

**Example: **

554

If payload is: 1C(H) <<24>>24=28(D), LiDAR temp=28℃.

555

If payload is: F2(H) <<24>>24=-14(D), LiDAR temp=-14℃.

556

557

558

==== (% style="color:blue" %)**Message Type**(%%) ====

(((

For a normal uplink payload, the message type is always 0x01.

)))

(((

Valid Message Type:

)))

(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:499px" %)

570

|=(% 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**

571

|(% style="width:160px" %)0x01|(% style="width:163px" %)Normal Uplink|(% style="width:173px" %)Normal Uplink Payload

572

|(% style="width:160px" %)0x02|(% style="width:163px" %)Reply configures info|(% style="width:173px" %)Configure Info Payload

573

574

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS40-LB_LoRaWAN_LiDAR_ToF_Distance_Sensor_User_Manual/WebHome/image-20230805161129-3.png?width=745&height=219&rev=1.1||alt="image-20230805161129-3.png"]]

575

576

577

=== 2.3.2 Historical measuring distance, FPORT~=3 ===

578

579

580

LDS40-NB stores sensor values and users can retrieve these history values via the downlink command.

581

582

The historical payload includes one or multiplies entries and every entry has the same payload as Real-Time measuring distance.

583

584

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

585

|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((

586

**Size(bytes)**

587

)))|=(% 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

588

|(% style="width:62.5px" %)Value|(% style="width:62.5px" %)Interrupt flag & Interrupt_level|(% style="width:62.5px" %)(((

589

Reserve(0xFF)

590

)))|Distance|Distance signal strength|(% style="width:88px" %)(((

591

LiDAR temp

592

)))|(% style="width:85px" %)Unix TimeStamp

593

594

**Interrupt flag & Interrupt level:**

595

596

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:480px" %)

597

|=(% style="width: 60px;background-color:#4F81BD;color:white" %)(((

598

**Size(bit)**

599

)))|=(% 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**

Interrupt flag

)))

* (((

Each data entry is 11 bytes and has the same structure as Uplink Payload, to save airtime and battery, LDS40-NB will send max bytes according to the current DR and Frequency bands.

606

)))

607

608

For example, in the US915 band, the max payload for different DR is:

609

610

**a) DR0:** max is 11 bytes so one entry of data

611

612

**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)

613

614

**c) DR2:** total payload includes 11 entries of data

615

616

**d) DR3:** total payload includes 22 entries of data.

617

618

If LDS40-NB doesn't have any data in the polling time. It will uplink 11 bytes of 0

619

620

621

(% style="color:blue" %)**Downlink:**

(% class="box" %)

(((

**0x31 64 CC 68 0C 64 CC 69 74 05**

626

)))

627

628

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS12-LB_LoRaWAN_LiDAR_ToF_Distance_Sensor_User_Manual/WebHome/image-20230805144936-2.png?width=746&height=113&rev=1.1||alt="image-20230805144936-2.png"]]

629

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631

(% style="color:blue" %)**Uplink:**

(% class="box" %)

(((

**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**

)))

(% style="color:blue" %)**Parsed Value:**

640

641

[DISTANCE , DISTANCE_SIGNAL_STRENGTH，LIDAR_TEMP，EXTI_STATUS , EXTI_FLAG , TIME]

642

643

644

[360,176,30,High,True,2023-08-04 02:53:00],

645

646

[355,168,30,Low,False,2023-08-04 02:53:29],

647

648

[245,211,30,Low,False,2023-08-04 02:54:29],

649

650

[57,700,30,Low,False,2023-08-04 02:55:29],

651

652

[361,164,30,Low,True,2023-08-04 02:56:00],

653

654

[337,184,30,Low,False,2023-08-04 02:56:40],

655

656

[20,4458,30,Low,False,2023-08-04 02:57:40],

657

658

[362,173,30,Low,False,2023-08-04 02:58:53],

659

660

661

(% style="color:blue" %)**History read from serial port：**

662

663

[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LDS40-LB_LoRaWAN_LiDAR_ToF_Distance_Sensor_User_Manual/WebHome/image-20230805162214-5.png?rev=1.1||alt="image-20230805162214-5.png"]]

664

665

666

== 2.4 Test Uplink and Change Update Interval ==

667

668

669

By default, Sensor will send uplinks (% style="color:blue" %)**every 2 hours**(%%) & AT+NOUD=8

670

671

User can use below commands to change the (% style="color:blue" %)**uplink interval**.

672

673

(% style="color:#037691" %)**AT+TDC=600 ** (%%) ~/~/ Set Update Interval to 600s

674

675

User can also push the button for more than 1 seconds to activate an uplink.

676

677

678

== 2.5 Multi-Samplings and One uplink ==

679

680

681

To save battery life, LDS40-NB will sample distance data every 15 minutes and send one uplink every 2 hours. So each uplink it will include 8 stored data + 1 real-time data. They are defined by:

682

683

* (% style="color:#037691" %)**AT+TR=900** (%%) ~/~/ The unit is seconds, and the default is to record data once every 900 seconds (15 minutes, the minimum can be set to 180 seconds)

684

685

* (% style="color:#037691" %)**AT+NOUD=8** (%%)~/~/ The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.

686

687

The diagram below explains the relationship between TR, NOUD, and TDC more clearly:

688

689

[[image:1692424376354-959.png]]

690

691

692

== 2.6 Trggier an uplink by external interrupt ==

693

694

695

LDS40-NB has an external trigger interrupt function. Users can use the PB15 pin to trigger the upload of data packets.

696

697

(% style="color:blue" %)**AT command:**

698

699

* (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode

700

701

* (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt

702

703

* (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge

704

705

* (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge

706

707

* (% style="color:#037691" %)**AT+INTMOD=3 **(%%) ~/~/ Trigger by rising edge

708

709

710

== 2.7 LiDAR ToF Measurement ==

711

712

=== 2.7.1 Principle of Distance Measurement ===

713

714

715

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.

716

717

[[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"]]

718

719

720

=== 2.7.2 Distance Measurement Characteristics ===

721

722

723

The detection angle of the LDS40-NB is 3 degrees, and the size of the light spot at different distances is the side length of the detection range. The size of the light spot at different distances is the side length of the detection range. The side length of the detection range (the shape is square), as shown.

724

725

(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)

Note that generally, the side length of the detected target object should be greater than the side length of the detection range of the LDS40-NB; when the detected object is smaller than the detection range side length; when the detected object is smaller than the detection range side length, the effective range of the radar will be reduced.

730

731

732

=== 2.7.3 Notice of usage ===

733

734

735

Possible invalid /wrong reading for LiDAR ToF tech:

736

737

* Measure high reflectivity object such as: Mirror, Smooth ceramic tile, static milk surface, will have possible wrong readings.

738

739

* While there is transparent object such as glass, water drop between the measured object and the LiDAR sensor, the reading might be wrong.

740

741

* The LiDAR probe is cover by dirty things; the reading might be wrong. In this case, need to clean the probe.

742

743

* The sensor window is made by Acrylic. Don't touch it with alcohol material. This will destroy the sensor window.

744

745

746

=== 2.7.4 Reflectivity of different objects ===

747

748

749

(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:379px" %)

750

|=(% 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

751

|(% style="width:53px" %)1|(% style="width:229px" %)Black foam rubber|(% style="width:93px" %)2.4%

752

|(% style="width:53px" %)2|(% style="width:229px" %)Black fabric|(% style="width:93px" %)3%

753

|(% style="width:53px" %)3|(% style="width:229px" %)Black rubber|(% style="width:93px" %)4%

754

|(% style="width:53px" %)4|(% style="width:229px" %)Coal (different types of coal)|(% style="width:93px" %)4~~8%

755

|(% style="width:53px" %)5|(% style="width:229px" %)Black car paint|(% style="width:93px" %)5%

756

|(% style="width:53px" %)6|(% style="width:229px" %)Black Jam|(% style="width:93px" %)10%

757

|(% style="width:53px" %)7|(% style="width:229px" %)Opaque black plastic|(% style="width:93px" %)14%

758

|(% style="width:53px" %)8|(% style="width:229px" %)Clean rough board|(% style="width:93px" %)20%

759

|(% style="width:53px" %)9|(% style="width:229px" %)Translucent plastic bottle|(% style="width:93px" %)62%

760

|(% style="width:53px" %)10|(% style="width:229px" %)Carton cardboard|(% style="width:93px" %)68%

761

|(% style="width:53px" %)11|(% style="width:229px" %)Clean pine|(% style="width:93px" %)70%

762

|(% style="width:53px" %)12|(% style="width:229px" %)Opaque white plastic|(% style="width:93px" %)87%

763

|(% style="width:53px" %)13|(% style="width:229px" %)White Jam|(% style="width:93px" %)90%

764

|(% style="width:53px" %)14|(% style="width:229px" %)Kodak Standard Whiteboard|(% style="width:93px" %)100%

765

|(% style="width:53px" %)15|(% style="width:229px" %)(((

766

Unpolished white metal surface

767

)))|(% style="width:93px" %)130%

768

|(% style="width:53px" %)16|(% style="width:229px" %)Glossy light metal surface|(% style="width:93px" %)150%

769

|(% style="width:53px" %)17|(% style="width:229px" %)stainless steel|(% style="width:93px" %)200%

770

|(% style="width:53px" %)18|(% style="width:229px" %)Reflector plate, reflective tape|(% style="width:93px" %)>300%

771

772

773

== 2.8 Set Transmit Interval Time ==

(((

Feature: Change NB-IoT End Node Transmit Interval.

)))

(((

(% style="color:blue" %)**AT Command: AT+TDC**

782

)))

783

784

(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)

785

|=(% style="width: 156px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 137px;background-color:#4F81BD;color:white" %)**Function**|=(% style="background-color:#4F81BD;color:white" %)**Response**

786

|(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((

787

30000

788

OK

789

the interval is 30000ms = 30s

790

)))

791

|(% style="width:156px" %)AT+TDC=60000|(% style="width:137px" %)Set Transmit Interval|(((

792

OK

793

Set transmit interval to 60000ms = 60 seconds

)))

(((

(% style="color:blue" %)**Downlink Command: 0x01**

)))

(((

Format: Command Code (0x01) followed by 3 bytes time value.

)))

(((

If the downlink payload=0100003C, it means set the END Node's Transmit Interval to 0x00003C=60(S), while type code is 01.

)))

* (((

Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds

810

)))

811

* (((

812

Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds

)))

= 3. Configure LDS40-NB =

817

818

== 3.1 Configure Methods ==

819

820

821

LDS40-NB supports below configure method:

822

823

* AT Command via Bluetooth Connection (**Recommended**): [[BLE Configure Instruction>>http://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]].

824

825

* AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].

826

827

828

== 3.2 AT Commands Set ==

829

830

831

AT+<CMD>? : Help on <CMD>

AT+<CMD> : Run <CMD>

AT+<CMD>=<value> : Set the value

836

837

AT+<CMD>=? : Get the value

838

839

840

(% style="color:blue" %)**General Commands**

AT : Attention

AT? : Short Help

ATZ : MCU Reset

AT+TDC : Application Data Transmission Interval

849

850

AT+CFG : Print all configurations

851

852

AT+CFGMOD : Working mode selection

853

854

AT+DEUI : Get or set the Device ID

855

856

AT+INTMOD : Set the trigger interrupt mode

857

858

AT+5VT : Set extend the time of 5V power

859

860

AT+PRO : Choose agreement

861

862

AT+RXDL : Extend the sending and receiving time

863

864

AT+DNSCFG : Get or Set DNS Server

865

866

AT+GETSENSORVALUE : Returns the current sensor measurement

867

868

AT+NOUD : Get or Set the number of data to be uploaded

869

870

AT+CDP : Read or Clear cached data

871

872

AT+SHTEMP: Get or Set alarm of temp

873

874

AT+SHHUM: Get or Set alarm of moisture

875

876

AT+SERVADDR : Server Address

877

878

879

(% style="color:blue" %)**UDP Management**

880

881

AT+CFM : Upload confirmation mode (only valid for UDP)

882

883

884

(% style="color:blue" %)**MQTT Management**

885

886

AT+CLIENT : Get or Set MQTT client

887

888

AT+UNAME : Get or Set MQTT Username

889

890

AT+PWD : Get or Set MQTT password

891

892

AT+PUBTOPIC : Get or Set MQTT publish topic

893

894

AT+SUBTOPIC : Get or Set MQTT subscription topic

895

896

897

(% style="color:blue" %)**Information**

898

899

AT+FDR : Factory Data Reset

900

901

AT+PWORD : Serial Access Password

902

903

AT+LDATA : Get the last upload data

904

905

AT+CDP : Read or Clear cached data

906

907

908

= 4. Battery & Power Consumption =

909

910

911

LDS40-NB use ER26500 + SPC1520 battery pack. See below link for detail information about the battery info and how to replace.

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[[**Battery Info & Power Consumption Analyze**>>http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20calculate%20the%20battery%20life%20of%20Dragino%20sensors%3F/]] .

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= 5. Firmware update =

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User can change device firmware to::

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* Update with new features.

* Fix bugs.

Firmware and changelog can be downloaded from : **[[Firmware download link>>https://www.dropbox.com/sh/bol5zyj6l4t6ge4/AAAtUvkHQ1tKwbVi_RCCmqFQa?dl=0]]**

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Methods to Update Firmware:

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* (Recommended way) OTA firmware update via BLE: [[**Instruction**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/BLE_Firmware_Update_NB_Sensors_BC660K-GL/]].

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* Update through UART TTL interface : **[[Instruction>>url:http://8.211.40.43/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H4.2.FirmwareupgradeusingSTM32Cubeprogramer]]**.

= 6. FAQ =

== 6.1 How can I access t BC660K-GL AT Commands? ==

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User can access to BC660K-GL directly and send AT Commands.

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[[See BC660K-GL AT Command set>>url:https://www.dropbox.com/sh/5f6ssda5fum8rvs/AABT68l8ZzWOvZ5eg2qwOoFda?dl=0]]

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= 7. Trouble Shooting =

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== 7.1 Significant error between the output distant value of LiDAR and actual distance ==

(((

(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance. (such as glass and water, etc.)

)))

(((

(% style="color:red" %)**Troubleshooting**(%%): Please avoid use of this product under such circumstance in practice.

)))

(((

(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.

)))

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(% style="color:red" %)**Troubleshooting**(%%): please use dry dust-free cloth to gently remove the foreign matter.

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= 8. Order Info =

Part Number: (% style="color:blue" %)**LDS40-NB-XX**

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(% style="color:red" %)**XX**(%%):

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* (% style="color:#037691" %)**GE**(%%): General version ( Exclude SIM card)

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* (% style="color:#037691" %)**1D**(%%): with 1NCE* 10 years 500MB SIM card and Pre-configure to DataCake server

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(% style="color:#037691" %)**1NCE SIM Card NB-IoT network coverage**(%%): Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Finland, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Latvia, Malta, Netherlands, Norway, Puerto Rico, Russia, Slovak , Republic, Slovenia, Spain, Sweden, Switzerland, Taiwan, USA, US Virgin Islands

= 9. Packing Info =

(% style="color:#037691" %)**Package Includes**:

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* LDS40-NB NB-IoT LiDAR ToF Distance sensor x 1

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* External antenna x 1

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(% style="color:#037691" %)**Dimension and weight**:

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* Device Size: 13.0 x 5 x 4.5 cm

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* Device Weight: 150g

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* Package Size / pcs : 14.0 x 8x 5 cm

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* Weight / pcs : 180g

= 10. Support =

* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.

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* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[Support@dragino.cc>>mailto:Support@dragino.cc]].

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(% style="display:none" %) (%%)

Wiki source code of LDS40-NB -- NB-IoT LiDAR ToF Distance Sensor User Manual

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