Dragino LLDS40 Manuale utente

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LLDS40-LoRaWAN LiDAR ToF Distance Sensor User Manual

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LLDS40-LoRaWAN LiDAR ToF Distance

Sensor User Manual

Last modiﬁed by

Xiaoling

(

/xwiki/bin/view/XWiki/Xiaoling

)

on 2022/11/03 08:53

Table of Contents:

•

1.!Introduction

◦

1.1 What is LoRaWAN LiDAR ToF Distance Sensor

◦

1.2!Features

◦

1.3!Probe Speciﬁcation

◦

1.4!Probe Dimension

◦

1.5 Applications

◦

1.6!Pin mapping and power on

•

2.!Conﬁgure LLDS40 to connect to LoRaWAN network

◦

2.1!How it works

◦

2.2!Quick guide to connect to LoRaWAN server (OTAA)

◦

2.3!Uplink Payload

▪

2.3.1!Battery Info

▪

2.3.2!DS18B20 Temperature sensor

▪

2.3.3!Distance

▪

2.3.4!Distance signal strength

▪

2.3.5!Interrupt Pin

▪

2.3.6!LiDAR temp

▪

2.3.7!Message Type

▪

2.3.8!Decode payload in The Things Network

◦

2.4!Uplink Interval

◦

2.5!Show Data in DataCake IoT Server

◦

2.6!Frequency Plans

▪

2.6.1!EU863-870 (EU868)

▪

2.6.2!US902-928(US915)

▪

2.6.3!CN470-510 (CN470)

▪

2.6.4!AU915-928(AU915)

▪

2.6.5!AS920-923 & AS923-925 (AS923)

▪

2.6.6!KR920-923 (KR920)

▪

2.6.7!IN865-867 (IN865)

◦

2.7!LED Indicator

◦

2.8!Firmware Change Log

•

3.!LiDAR ToF Measurement

◦

3.1 !Principle of Distance Measurement

◦

3.2 !Distance Measurement Characteristics

◦

3.3 !Notice of usage:

◦

3.4!Reﬂectivity of different objects:

•

4.!Conﬁgure LLDS40 via AT Command or LoRaWAN Downlink

◦

4.1!Set Transmit Interval Time

◦

4.2!Set Interrupt Mode

◦

4.3!Get Firmware Version Info

•

5.!Battery & How to replace

◦

5.1!Battery Type

◦

5.2!Replace Battery

◦

5.3!Power Consumption Analyze

▪

5.3.1!Battery Note

▪

5.3.2!Replace the battery

•

6.!Use AT Command

◦

6.1!Access AT Commands

•

7.!FAQ

◦

7.1!How to change the LoRa Frequency Bands/Region

•

8.!Trouble Shooting

◦

8.1!AT Commands input doesn't work

◦

8.2!Signiﬁcant error between the output distance value of LiDAR and the actual distance

•

9.!Order Info

•

10. Packing Info

•

11.!Support

1.!Introduction

1.1 What is LoRaWAN LiDAR ToF Distance Sensor

The Dragino LLDS40 is a!

LoRaWAN 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

laser induction technology for distance measurement.

The LLDS40 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.

It detects the distance between the measured object and the sensor, and uploads the value via wireless to

LoRaWAN IoT Server.

The LoRa wireless technology used in LLDS40 allows device to send data and reach extremely long

ranges at low data-rates. It provides ultra-long range spread spectrum communication and high

interference immunity whilst minimizing current consumption.

LLDS40 is powered by

8500mAh Li-SOCI2 battery

, it is designed for long term use up to 5 years.

Each LLDS40 is pre-load with a set of unique keys for LoRaWAN registrations, register these keys to local

LoRaWAN server and it will auto connect after power on.

1.2!Features

•

LoRaWAN 1.0.3 Class A

•

Ultra-low power consumption

•

Laser technology for distance detection

•

Measure Distance: 0.1m ~ 40m!@ 90% Reﬂectivity

•

Monitor Battery Level

•

Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865

•

AT Commands to change parameters

•

Uplink on periodically

•

Downlink to change conﬁgure

•

8500mAh Battery for long-term use

1.3!Probe Speciﬁcation

•

Storage temperature

：

-30℃~80℃

•

Operating temperature:!-20℃~60℃

•

Measure Distance:

◦

0.1m ~ 40m @ 90% Reﬂectivity

◦

0.1m ~ 13.5m @ 10% Reﬂectivity

•

Distance resolution:!1cm

•

Ambient light immunity: 100klux

•

Enclosure rating : IP65

•

Light source : VCSEL

•

Central wavelength : 850nm

•

FOV : 3°

•

Material of enclosure : ABS+PC

•

Wire length : 75cm

1.4!Probe Dimension

1.5 Applications

•

Horizontal distance measurement

•

Oil Tank

•

Object proximity and presence detection

•

Intelligent trash can management system

•

Robot obstacle avoidance

•

Automatic control

•

Sewer

1.6!Pin mapping and power on

2.!Conﬁgure LLDS40 to connect to LoRaWAN

network

2.1!How it works

The LLDS40 is conﬁgured as 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 power on the LLDS40. It will automatically join the network via OTAA and start

to send the sensor value. The default uplink interval is 20 minutes.

In case you can't set the OTAA keys in the LoRaWAN OTAA server, and you have to use the keys from the

server, you can

use AT Commands!

to set the keys in the LLDS40.

2.2!Quick guide to connect to LoRaWAN server (OTAA)

Following is an example for how to join the

TTN v3 LoRaWAN Network

(

https://console.cloud.thethings.network/

)

. Below is the network structure; we use the

LG308

(

http://www.dragino.com/products/lora/item/140-lg308.html

)

!as a LoRaWAN gateway in this example.!

The LG308 is already set to connect to

TTN network!

(

https://console.cloud.thethings.network/

)

, so what

we need to now is conﬁgure the TTN server.

Step 1

: Create a device in TTN with the OTAA keys from LLDS40.

Each LLDS40 is shipped with a sticker with the default device EUI as below:

You can enter this key in the LoRaWAN Server portal. Below is TTN screenshot:

Add APP EUI and DEV EUI

Add APP EUI in the application

Add APP KEY

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