Dragino LG308 User manual

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LoRaWAN Gateway User Manual ---Update:2018-11-17 1 / 30
LG308 LoRaWAN Gateway User Manual
Document Version: 1.0
Firmware Version: LG02_LG08--build-v5.1.1542210480-20181114-2349
Version
Description
Date
1.0
Release
2018-Nov-17

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1. Introduction..............................................................................................................................4
1.1 What is LG08 & LG308................................................................................................................4
1.2 Specifications..............................................................................................................................4
1.3 Features......................................................................................................................................6
1.4 Hardware System Structure........................................................................................................6
1.5 LG308 Applications.....................................................................................................................7
2. Access LG308 ............................................................................................................................8
2.1 Access and configure LG308 ....................................................................................................... 8
3. Typical Network Setup ..............................................................................................................9
3.1 Overview ....................................................................................................................................9
3.2 Use WAN port to access Internet................................................................................................9
3.3 Access Internet as a WiFi Client................................................................................................10
3.4 Use built-in 4G modem for internet access ..............................................................................12
3.5 Check Internet connection........................................................................................................14
4. Example : Configure as a LoRaWAN gateway...........................................................................15
4.1 Create a gateway in TTN Server ...............................................................................................15
4.2 Configure LG308 to connect to TTN..........................................................................................17
4.3 Configure frequency .................................................................................................................18
4.4 Add a LoRaWAN End Device.....................................................................................................19
5. Linux System ...........................................................................................................................21
5.1 SSH Access for Linux console ....................................................................................................21
5.2 Edit and Transfer files ...............................................................................................................22
5.3 File System................................................................................................................................22
5.4 Package maintain system .........................................................................................................23
6. Upgrade Linux Firmware .........................................................................................................24
6.1 Upgrade via Web UI .................................................................................................................24
6.2 Upgrade via Linux console........................................................................................................24
7. FAQ ......................................................................................................................................... 25

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7.1 Can I make my own firmware for LG308? Where can I find the source code of LG308? ..........25
7.2 More FAQs about general LoRa questions ...............................................................................25
8. Trouble Shooting..................................................................................................................... 26
8.1 I get kernel error when install new package, how to fix? .........................................................26
8.2 How to recover the LG308 if firmware crash ............................................................................27
8.3 I configured LG308 for WiFi access and lost its IP. What to do now? .......................................28
9. Order Info ...............................................................................................................................29
10. Packing Info ............................................................................................................................29
11. Support................................................................................................................................... 29
12. Reference................................................................................................................................30

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1. Introduction
1.1 What is LG08 & LG308
The LG308 is an open source LoRaWAN Pico Gateway. It lets you bridge LoRa wireless network
to an IP network via WiFi, Ethernet, 3G or 4G cellular network. The LoRa wireless allows users to
send data and reach extremely long ranges at low data-rates.
The LG308 is fully compatible with LoRaWAN protocol. It includes a SX1308 LoRa concentrator
and a SX1276 LoRa tranceiver, the sx1308 provides 10 programmable parallel demodulation
paths and the SX1276 acts as TX channel so the SX1308 won’t be block during TX. This
combination provides higher capacity compare with a standalone SX1308 concentrator solution.
1.2 Specifications
Hardware System:
Linux Part:
400Mhz ar9331 processor
64MB RAM
16MB Flash
Interface:
10M/100M RJ45 Ports x 2
WiFi : 802.11 b/g/n
LoRaWAN Wireless

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Power Input: 12V DC, 1 A
USB 2.0 host connector x 1
Mini-PCI E connector x 1
SX1308 + SX1276
WiFi Spec:
IEEE 802.11 b/g/n
Frenquency Band: 2.4 ~ 2.462GHz
Tx power:
11n tx power : mcs7/15: 11db mcs0 : 17db
11b tx power: 18db
11g 54M tx power: 12db
11g 6M tx power: 18db
Wifi Sensitivity
11g 54M : -71dbm
11n 20M : -67dbm
LoRa Spec:
Up to -142.5dBm sensitivity with SX1257 Tx/Rx front-end
70 dB CW interferer rejection at 1 MHz offset
Able to operate with negative SNR, CCR up to 9dB
Emulates 49x LoRa demodulators and 1x (G)FSK demodulator
Dual digital TX&RX radio front-end interfaces
10 programmable parallel demodulation paths
Dynamic data-rate (DDR) adaptation
True antenna diversity or simultaneous dual-band operation
Cellular 4G LTE (optional):
Quectel EC25 LTE module
Micro SIM Slot
External 4G Sticker Antenna.
Up to 150Mbps downlink and 50Mbps uplink data rates
Worldwide LTE,UMTS/HSPA+ and GSM/GPRS/EDGE coverage
MIMO technology meets demands for data rate and link reliability in modem
wireless communication systems

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1.3 Features
Open Source OpenWrt system
Managed by Web GUI, SSH via LAN or WiFi
Emulates 49x LoRa demodulators
LoRaWAN Gateway
SX1276 base separate TX path
10 programmable parallel demodulation paths
1.4 Hardware System Structure

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1.5 LG308 Applications

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2. Access LG308
2.1 Access and configure LG308
The LG308 is configured as a WiFi AP by factory default. User can access and configure the LG308
after connect to its WiFi network.
At the first boot of LG308, it will auto generate an unsecure
WiFi network call dragino-xxxxxx
User can use the laptop to connect to this WiFi network. The
laptop will get an IP address 10.130.1.xxx and the LG308 has
the default IP 10.130.1.1
Open a browser in the laptop and type
http://10.130.1.1/
User will see the login interface of LG308.
The account for Web Login is:
User Name: root
Password: dragino
Notice: In case the WiFi network is disabled, user can connect PC to LG308’s LAN port, the PC will
get DHCP from LG308, and be able to access it.

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3. Typical Network Setup
3.1 Overview
LG308 supports flexible network set up for different environment. This section describes the
typical network topology can be set in LG308. The typical network set up includes:
WAN Port Internet Mode
WiFi Client Mode
WiFi AP Mode
USB Dial Up Mode
3.2 Use WAN port to access Internet
By default, the LG308 set to use WAN port as network connection. When connect LG308’s WAN
port to router, LG308 will get IP from router and have internet access. The network status can be
checked as below:

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3.3 Access Internet as a WiFi Client.
In the WiFi Client Mode, Dragino acts as a WiFi client and gets DHCP from uplink router via WiFi.
The step to set is as below:
Step1:
In network -> Wireless, select Radio0 interface and scan.
Step2:
Select the wireless AP and join:
Step3:
In network->wireless page, disable WiFi AP network. Notice: After doing that, you will lose
connection if your computer connects to the LG308 via LG308’s wifi network.

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After successful associate, the WiFi network interface can be seen in the same page:

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3.4 Use built-in 4G modem for internet access
For the LG308 model with 4G version, user can configure the modem for internet access.
Step 1: Add New Interface

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Step 2: Configure cellular interface
Step 3: Check Result
Note: In case you don’t know whether your device has 4G modem, you can run lsusb command
in SSH access to check, as below:

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3.5 Check Internet connection
User can use the diagnostics page to check and analyze Internet connection.

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4. Example : Configure as a LoRaWAN gateway
LG308 is fully compatible with LoRaWAN protocol. It use the legacy Semtech Packet forwarder to
forward the LoRaWAN packets to server, the structure is as below.
This chapter describes how to use LG308 to work with TTN LoRaWAN Server. The method to
work with other LoRaWAN server is similar.
4.1 Create a gateway in TTN Server
Step 1: Get a Unique gateway ID.
Every LG308 has a unique gateway id. The id can be found at LoRaWAN page:
The gateway id is: a840411b8268ffff

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Step 2: Sign up a user account in TTN server
Step 3: Create a Gateway

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After create the gateway, we can see the gateway info, as below
4.2 Configure LG308 to connect to TTN
We should configure the LG308 now to let it connect to TTN network. Make sure your LG308 has
Internet Connection first.
Step1: Configure LG308 to act as raw forwarder
Step2: Input server info and gateway id
Choose the correct the server address and gateway ID.

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Check Result
After above settings, the LG308 should be able to connect to TTN, below is the result seen from
TTN:
4.3 Configure frequency
After doing above LG308 will be able to act as LoRaWAN. Below section shows how to add a
LoRaWAN End device in this LoRaWAN network and see the data from TTN.
We use LT-33222-L as a reference below, for other LoRaWAN devices will be more or less the
same.

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4.4 Add a LoRaWAN End Device
Step 1: Create a device in TTN with the OTAA keys from LT IO controller.
Each LT is shipped with a sticker with the default device EUI as below:
User can enter this key in their LoRaWAN Server portal. Below is TTN screen shot:
Add APP EUI in the application.

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Add APP KEY and DEV EUI
Step 2: Power on LT and it will auto join to the TTN network. After join success, it will start to
upload message to TTN and user can see in the panel and analyze the data