Wiki source code of LoRaWAN IoT Kit v3 User Manual

Last modified by Xiaoling on 2023/07/24 09:53

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6.2	1	(% style="text-align:center" %)
	2	[[image:1669017918121-199.png\|\|height="359" width="358"]]
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31.3	5	Table of Contents:
6.2	6
31.3	7	{{toc/}}
6.2	8
	9
	10
	11
	12
	13	= 1. Overview =
	14
	15	== 1.1 What is Dragino LoRaWAN IoT Kit v3? ==
	16
	17
	18	(((
	19	(% style="color:blue" %)Dragino LoRaWAN IoT Kit v3(%%) is designed to facilitate beginners and developers to quickly learn and demonstrate LoRa/LoRaWAN and IoT technology. It helps users to turn the idea into a practical application and make the Internet of Things a reality.
	20	)))
	21
	22	(((
	23	The LoRaWAN IoT Kit v3 can be used to evaluate the multi-channel LoRaWAN solution and single-channel private LoRa solution. Users can also use LoRaWAN IoT Kit v3 to test different network structure solutions and find the best for their IoT solution.
	24	)))
	25
	26	(((
	27	The LoRaWAN IoT kit v3 (% style="color:blue" %)shows how to build a LoRaWAN network(%%), and (% style="color:blue" %)how to use the network to send data from a LoRa sensor node to the cloud server. (%%)Depends on the actually use environment, the LoRaWAN gateway will connect your other LoRa nodes up to 500 ~~ 5,000 meters.
	28	)))
	29
	30
	31	== 1.2 Features ==
	32
	33	* Open Source LoRa/LoRaWAN kits
	34
	35	* Support multi-channels LoRaWAN and Single-Channel LoRa
	36
	37	* Support various network structures
	38
31.3	39
37.2	40
6.2	41	== 1.3 What can you learn from the kit? ==
	42
	43
	44	(% style="color:blue" %)The goals through this LoRaWAN IoT kit v3:
	45
	46	* Understand the structure of an Internet of Things network, and how does an IoT network works
	47
	48	* Learn coding method for Arduino micro controller
	49
	50	* Learn some common sensors.
	51
	52	* Learn some basic commands for Linux
	53
	54	* Learn about LoRaWAN and how to set up a LoRaWAN network.
	55
	56	* Learn about Node-Red and how to set up it as IoT server and plot data.
	57
	58	* Learn different way to connect LoRaWAN network to IoT Server and compare their advantages / disadvantages.
	59
31.3	60
37.2	61
6.2	62	== 1.4 What parts Dragino LoRa IoT v3 includes? ==
	63
	64
	65
37.1	66	[[image:image-20230718161437-3.png]]
6.2	67
	68
	69	(% style="color:blue" %)LoRaWAN IoT Kit v3 Packing List:
	70
	71	* [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] LoRaWAN Gateway
	72
	73	* [[LA66 LoRaWAN Shield>>url:https://www.dragino.com/products/lora/item/231-la66-lorawan-shield.html]] for Arduino
	74
	75	* [[LA66 USB LoRaWAN Adapter>>url:https://www.dragino.com/products/lora/item/232-la66-usb-lorawan-adapter.html]] for PC/Mobile/RPi
	76
	77	* 1 x DHT11 Temperature & Humidity Sensor
	78
	79	* 1 x RGB LED
	80
	81	* 20 x dupont cable (male to male)
	82
	83	* 20 x dupont cable (female to female)
	84
	85	* 20 x dupont cable (male to female)
	86
31.3	87
37.2	88
6.2	89	= 2. Example 1: Test a LoRaWAN network =
	90
	91
	92	This example describes how to use LPS8v2, LA66 Shield & LA66 USB to set up a LoRaWAN network and connect it to [[TTNv3 LoRaWAN Server>>url:https://accounts.thethingsindustries.com/]]. It also shows how to use external application server to monitor / manage the LoRa Nodes.
	93
	94	The network structure of this example is as below.
	95
	96
	97	[[image:1669019691933-772.png]]
	98
	99
31.3	100
6.2	101	(% style="color:blue" %)STEPS:
	102
	103	~1. Register LPS8v2 gateway to TTN so provide a LoRaWAN coverage. See section “[[Gateway Registration for Semtech UDP ~~-~~-~> Primary LoRaWAN Server>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Notes%20for%20TTN/#H2.A0GatewayRegistrationforSemtechUDP]]”
	104
	105	2. Register LA66 Shield to TTN and uplink Temperature to TTN. See section “[[Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/#H1.7A0Example:LogTemperatureSensor28DHT1129andsenddatatoTTN2CshowitinNode-RED.]].”
	106
	107	3. Register LA66 USB to TTN and track people location. See “[[Example: Use of LA66 USB LoRaWAN Adapter and mobile APP>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/#H1.9A0Example:UseofA0LA66USBLoRaWANAdapterandmobileAPP]]”
	108
	109
31.3	110
6.2	111	(% style="color:blue" %)Result:
	112
	113	[[image:1669019732684-677.png]]
	114
	115
	116	= 3. Example 2: Test Built-In LoRaWAN Server =
	117
16.2	118
6.2	119	This example describes how to use LPS8v2, LA66 Shield & LA66 USB to set up a LoRaWAN network and connect it to built-in LoRaWAN Server in. It also shows how to use external application server to monitor / manage the LoRa Nodes.
	120
	121
16.2	122	[[image:1669019757521-444.png]]
	123
	124
6.2	125	This example is almost the same as Example1, the difference is that this example use the built-in LoRaWAN server (TTNv3 Stack) in LPS8v2. While Example 1 use the public TTN server.
	126
	127	TTN v3 stack has the same configure method as the public TTN server. When user test example 2 here. User need to log in the TTNv3 stack in LPS8v2 as per below:
	128
33.3	129	Input URL( (% style="background-color:yellow" %)//__http:~/~/<hostname>:8080 or http:~/~/<local-IPV4-address>__//(%%)__ __) in your browser.
6.2	130
33.3	131	Such as (% style="background-color:yellow" %)//__http:~/~/dragino-54ff12:8080 or http:~/~/<Local-IPV4-Address>__//(%%)
6.2	132
	133
	134	(% style="color:blue" %)Login account:
	135
33.3	136	User ID: (% style="background-color:yellow" %)admin(%%)
6.2	137
33.3	138	Password: (% style="background-color:yellow" %)dragino(%%)
6.2	139
16.2	140	[[image:1669019821266-501.png]]
6.2	141
	142
	143	= 4. Example 3: Test Built-in LoRaWAN server and Application server =
	144
16.2	145
6.2	146	This example describes how to use LPS8v2, LA66 Shield & LA66 USB to set up a LoRaWAN network and connect it to built-in LoRaWAN Server in. It also shows how to use external application server to monitor / manage the LoRa Nodes.
	147
	148
16.2	149	[[image:1669019855783-448.png]]
6.2	150
16.2	151
6.2	152	This example is quite similiar as Example2, the difference is that this example use the built-in Application server (Node-Red) in LPS8v2. While Example 2 use the public Node-Red
	153
	154	Below is the Node-Red access instruction of LPS8v2:
	155
16.2	156	You can access the gateway's built-in AS server of Node-Red via the URL(__http:~/~/<hostname>:1880 or http:~/~/<local-IPV4-address>__) in your browser.
6.2	157
16.2	158	Such as __http:~/~/dragino-54ff12:1880 or [[http:~~/~~/<Local-IPV4-Address~>>>http://<Local-IPV4-Address>]]__
6.2	159
	160
16.2	161	[[image:1669019884655-805.png]]
6.2	162
	163
	164	= 5. Example 4: Peer to Peer Test on end node =
	165
16.2	166
6.2	167	This example describes how to test peer to peer communicate between LoRa End Node.
	168
	169
16.2	170	[[image:1669019964124-630.png]]
	171
	172
6.2	173	In this example, the end nodes LA66 Shield and LA66 USB are not use LoRaWAN protocol. Users need to flash them with the firmware support private LoRa.
	174
31.4	175	* (% style="color:blue" %)Software Location:(%%) [[LA66 Peer to Peer firmware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/Instruction%20for%20LA66%20Peer%20to%20Peer%20firmware/]]
6.2	176
31.4	177	* (% style="color:blue" %)How to Flash Firmware: (%%) [[For LA66 Shield>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/#H1.9A0UpgradeFirmwareofLA66LoRaWANShield]] , For [[LA66 USB>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/#H1.10A0UpgradeFirmwareofLA66USBLoRaWANAdapter]].
6.2	178
	179	This example will show how to get Temperature sensor value from LA66 Shield and send it to LA66 USB. LA66 USB is connected to mobile phone. So user can see the temperature value in mobile phone directly . User can also send message from mobile phone to LA66 to control the RGB LED.
	180
	181
	182	== 5.1 Set Up LA66 Shield + UNO ==
	183
	184	=== 5.1.1 Set up LA66 Module ===
	185
16.2	186
32.1	187	LA66 Module is loaded with the firmware [[LA66 Peer to Peer firmware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/Instruction%20for%20LA66%20Peer%20to%20Peer%20firmware/]] and user can use AT Command to set up LA66 with below parameters:
6.2	188
33.1	189	(% class="box infomessage" %)
	190	(((
	191	(% style="color:#037691" %)AT+FRE=904.100,904.100 (%%) ~-~-> TX and RX frequency set: 9041100000
6.2	192
33.1	193	(% style="color:#037691" %)AT+BW=0,0 (%%) ~-~-> TX and RX Bandwidth set: 125kHz
6.2	194
33.1	195	(% style="color:#037691" %)AT+SF=12,12 (%%) ~-~-> TX and RX Spreading Factor set: SF10
6.2	196
33.1	197	(% style="color:#037691" %)AT+CRC=1,1 (%%) ~-~-> 0: CRC OFF ,1: CRC ON
6.2	198
33.1	199	(% style="color:#037691" %)AT+HEADER=0,0 (%%) ~-~-> Header Type: explicit, explicit
6.2	200
33.1	201	(% style="color:#037691" %)AT+CR=1,1 (%%) ~-~-> CR: 4/5, 4/5
6.2	202
33.1	203	(% style="color:#037691" %)AT+IQ=0,0 (%%) ~-~-> Invert IQ: 0,0
6.2	204
33.1	205	(% style="color:#037691" %)AT+PREAMBLE=8,8 (%%) ~-~-> TX and RX Preamble Length set: 8
6.2	206
33.1	207	(% style="color:#037691" %)AT+SYNCWORD=0 (%%) ~-~-> Syncword(0: private，1: public)
6.2	208
33.1	209	(% style="color:#037691" %)AT+RXMOD=6,0 (%%) ~-~-> Rx Timeout and Reply mode
	210	)))
6.2	211
33.2	212
6.2	213	=== 5.1.2 Hardware Connection ===
	214
	215
16.2	216	[[image:1669020260360-253.png]]
6.2	217
	218
16.2	219	There is a sensor DHT11 (Temperature & Humidity sensor) and LED RGB connected to LA66 Shield + UNO. Please use the connection as we show in the photo.
6.2	220
16.2	221
6.2	222	=== 5.1.3 Set up Arduino UNO ===
	223
16.2	224
32.1	225	The sketch for this example is [[Log-Temperature-Sensor-and- Control-RBG-LED.ino>>url:https://www.dropbox.com/sh/r5l3h5fhifrqbxn/AACgNoQ-aYnvWOxGwUDWxNlFa?dl=0]]
6.2	226
	227
16.2	228	(% style="color:blue" %)Upload the code to UNO:
6.2	229
16.2	230	[[image:1669020288319-334.png]]
6.2	231
	232
	233
16.2	234	(% style="color:blue" %)Check the LA66 Shield data:
6.2	235
16.2	236	[[image:1669020309356-484.png]]
	237
	238
6.2	239	== 5.2 Set Up LA66 USB ==
	240
16.2	241
32.1	242	LA66 USB is loaded with the firmware [[LA66 Peer to Peer firmware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/Instruction%20for%20LA66%20Peer%20to%20Peer%20firmware/]] and user can use AT Command to set up LA66 USB with below parameters:
6.2	243
33.1	244	(% class="box infomessage" %)
	245	(((
16.2	246	(% style="color:#037691" %)AT+FRE=904.100,904.100(%%) ~-~-> TX and RX frequency set: 904100000
6.2	247
16.2	248	(% style="color:#037691" %)AT+BW=0,0 (%%) ~-~-> TX and RX Bandwidth set: 125kHz
6.2	249
16.2	250	(% style="color:#037691" %)AT+SF=10,10 (%%) ~-~-> TX and RX Spreading Factor set: SF10
6.2	251
16.2	252	(% style="color:#037691" %)AT+CRC=1,1 (%%) ~-~-> 0: CRC OFF ,1: CRC ON
6.2	253
16.2	254	(% style="color:#037691" %)AT+HEADER=0,0 (%%) ~-~-> Header Type: explicit, explicit
6.2	255
16.2	256	(% style="color:#037691" %)AT+CR=1,1 (%%) ~-~-> CR: 4/5, 4/5
6.2	257
16.2	258	(% style="color:#037691" %)AT+IQ=0,0 (%%) ~-~-> Invert IQ: 0,0
6.2	259
16.2	260	(% style="color:#037691" %)AT+PREAMBLE=8,8 (%%) ~-~-> TX and RX Preamble Length set: 8
6.2	261
16.2	262	(% style="color:#037691" %)AT+SYNCWORD=0 (%%) ~-~-> Syncword(0: private，1: public)
6.2	263
16.2	264	(% style="color:#037691" %)AT+RXMOD=65535,0 (%%) ~-~-> Set the receive mode
6.2	265
16.2	266	(% style="color:#037691" %)AT+RXDAFORM=1 (%%) ~-~-> ASCII to string
33.1	267	)))
6.2	268
	269	Users using USB to Type-C adapter is needed to connect to a Mobile phone, Users need to download the USB Serial APP in their phones.
	270
32.1	271	For example, [[USB Serial Console>>url:https://play.google.com/store/apps/details?id=jp.sugnakys.usbserialconsole]] (Android Version Only)
6.2	272
	273
16.2	274	[[image:1669020888886-358.png]]
6.2	275
	276
	277	The serial port configuration for LA66 USB is as follows:
	278
23.2	279	[[image:1669021003598-788.png]] [[image:1669021009003-965.png]]
6.2	280
23.2	281	(% style="display:none" %) (%%)
6.2	282
	283	== 5.3 Test result ==
	284
23.2	285
6.2	286	Users can view the temperature and humidity information received by LA66 USB in the mobile APP
	287
31.2	288	[[image:1669021002246-577.png]] [[image:1669021002645-501.png]]
6.2	289
	290	Send a message to the LA66 USB control LA66 Shield + UNO external RBG LED through the mobile phone:
	291
	292
31.4	293	For example, if you send (% style="color:blue" %)AT+SEND=1,000101,2,0(%%) the RBG LED will light up red.
6.2	294
31.2	295	[[image:1669021075655-472.png]]
6.2	296
	297
23.2	298	[[image:1669021098924-484.png]]
6.2	299
	300
31.2	301	= 6. Example 5: Peer to Peer Test and plot the data in LPS8v2 =
23.2	302
	303
6.2	304	This example describes how to test peer to peer communicate between LoRa End Node and LoRa Gateway.
	305
	306
31.2	307	[[image:1669021294907-277.png]]
	308
	309
6.2	310	In this example, the end nodes LA66 Shield and LA66 USB are not use LoRaWAN protocol. Users need to flash them with the firmware support private LoRa.
	311
31.2	312	* (% style="color:blue" %)Software Location(%%): [[LA66 Peer to Peer firmware>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/Instruction%20for%20LA66%20Peer%20to%20Peer%20firmware/]]
6.2	313
31.2	314	* (% style="color:blue" %)How to Flash Firmware(%%): [[For LA66 Shield>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/#H1.9A0UpgradeFirmwareofLA66LoRaWANShield]] , For [[LA66 USB>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/#H1.10A0UpgradeFirmwareofLA66USBLoRaWANAdapter]].
6.2	315
	316	This example will show how to get Temperature sensor value from LA66 Shield and send it to LA66 USB. LA66 USB is connected to LPS8v2. LPS8v2 will receive the data from LA66 USB and plot the data in the built-in Node-Red server.
	317
	318	(% style="color:red" %)Notice:
	319
31.3	320	1. LPS8v2 has LoRaWAN concentrator which doesn't do anything in this example. This example doesn't need this SX1302 concentrator.
	321
32.1	322	2. For mass deployment, user can use the LG01v2 instead of LPS8v2+LA66 USB. LG01v2 already include LA66 module inside.
6.2	323
32.1	324	Use can check [[THIS LINK>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20All%20Gateway%20models/LG01v2/#H5.2Example:LG01v2]] for an instruction of this example. In the link it uses LG01v2 as example, the use for LPS8v2+LA66 USB is the same as LG01v2.
6.2	325
	326
	327	= 7. Example 6: Limited LoRaWAN relay =
	328
	329
	330	This example describes a limited LoRaWAN relay method with the use of LA66 module.
	331
	332
31.2	333	[[image:1669021378154-590.png]]
6.2	334
	335
	336	In this example, the end nodes LA66 Shield and LA66 USB are not use LoRaWAN protocol. Users need to flash them with the firmware support private LoRa.
	337
31.2	338	* (% style="color:blue" %)Software Location(%%): [[LA66 USB use LoRaWAN firmware>>url:https://www.dropbox.com/sh/els49fz9rd6fu1y/AAAt-kKIvXu1ZOK0hWysq97na?dl=0]], [[LA66 Shield use Point to Point firmware>>url:https://www.dropbox.com/sh/els49fz9rd6fu1y/AAAt-kKIvXu1ZOK0hWysq97na?dl=0]].
6.2	339
31.2	340	* (% style="color:blue" %)How to Flash Firmware(%%): [[For LA66 Shield>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/#H1.9A0UpgradeFirmwareofLA66LoRaWANShield]] , For [[LA66 USB>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/#H1.10A0UpgradeFirmwareofLA66USBLoRaWANAdapter]].
6.2	341
31.2	342	(% style="color:red" %)Note: LA66 USB use a LoRaWAN version firmware and user need to set it to work in fix frequency, fix DR and ABP mode. LA66 already register to TTNv3 in ABP mode.
6.2	343
	344
	345	== 7.1 Set up LA66 USB ==
	346
31.2	347
32.1	348	LA66 USB is loaded with the firmware [[LA66 USB use LoRaWAN firmware>>url:https://www.dropbox.com/sh/els49fz9rd6fu1y/AAAt-kKIvXu1ZOK0hWysq97na?dl=0]] and user can use AT Command to set up LA66 with below parameters:
33.2	349
33.1	350	(% class="box infomessage" %)
	351	(((
31.2	352	(% style="color:#037691" %)AT+CHS=904100000 (%%) ~-~-> Fix frequency
6.2	353
31.2	354	(% style="color:#037691" %)AT+NJM=0 (%%) ~-~-> Set the ABP mode
6.2	355
31.2	356	(% style="color:#037691" %)AT+ADR=0 (%%) ~-~-> Close ADR
6.2	357
31.2	358	(% style="color:#037691" %)AT+DR=0 (%%) ~-~-> Fix DR=0
33.1	359	)))
33.2	360
6.2	361	Set up LA66 USB t work in ABP mode, use fix frequency(904100000) and fix DR0(SF10) to transmit data.
	362
	363
	364	== 7.2 Set up LA66 Shield ==
	365
31.2	366
32.1	367	LA66 Shield is loaded with the firmware [[LA66 Shield use Point to Point firmware>>url:https://www.dropbox.com/sh/els49fz9rd6fu1y/AAAt-kKIvXu1ZOK0hWysq97na?dl=0]], LA66 Shield as Relay needs to be configured as follows:
33.2	368
33.1	369	(% class="box infomessage" %)
	370	(((
31.2	371	(% style="color:#037691" %)AT+FRE=904.100,904.100(%%) ~-~-> TX and RX frequency set: 904100000
6.2	372
31.2	373	(% style="color:#037691" %)AT+BW=0,0(%%) ~-~-> TX and RX Bandwidth set: 125kHz
6.2	374
31.2	375	(% style="color:#037691" %)AT+SF=10,10(%%) ~-~-> TX and RX Spreading Factor set: SF10(corresponding toDR=0)
6.2	376
31.2	377	(% style="color:#037691" %)AT+CRC=1,1(%%) ~-~-> 0: CRC OFF ,1: CRC ON
6.2	378
31.2	379	(% style="color:#037691" %)AT+HEADER=0,0(%%) ~-~-> Header Type: explicit, explicit
6.2	380
31.2	381	(% style="color:#037691" %)AT+CR=1,1(%%) ~-~-> CR: 4/5, 4/5
6.2	382
31.2	383	(% style="color:#037691" %)AT+IQ=0,0(%%) ~-~-> Invert IQ: 0,0
6.2	384
31.2	385	(% style="color:#037691" %)AT+PREAMBLE=8,8(%%) ~-~-> TX and RX Preamble Length set: 8
6.2	386
31.2	387	(% style="color:#037691" %)AT+SYNCWORD=1(%%) ~-~-> Syncword(0: private，1: public)
6.2	388
31.2	389	(% style="color:#037691" %)AT+RXMOD=65535,1 (%%) ~-~-> Set the Relay mode
6.2	390
31.2	391	(% style="color:#037691" %)AT+WAITTIME=1000(%%) ~-~-> Relay wait time 1000ms
33.1	392	)))
6.2	393
33.2	394
6.2	395	== 7.3 Uplink test ==
	396
	397
31.2	398	Users can connect to the LA66 USB using the serial port tool and enter the (% style="color:blue" %)AT command: AT+SENDB=01,02,8,05820802581ea0a5
6.2	399
31.2	400	(% style="color:#037691" %)Command format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
6.2	401
31.2	402	[[image:1669021802668-328.png]]
6.2	403
31.2	404
32.1	405	In addition, users can also access LA66 USB using the mobile app [[Download Link for Android apk >>url:https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]] (Android Version Only)
6.2	406
31.2	407	[[image:1669021860044-222.png]]
6.2	408
	409
	410	== 7.4 Test result ==
	411
31.2	412
6.2	413	See two duplicate messages on Gateway Traffic.
	414
31.2	415	[[image:1669021878786-276.png]]
6.2	416
	417
31.2	418
6.2	419	Bring LA66 USB and walk to a remote location to get the max distance. At this point,RSSi=-134 SNR=13.8, Go back 100 meters and put the LA66 Shield (Relay) in the location, Due to the following examples, there may be errors in the test in the urban area.
	420
31.2	421	[[image:1669021889556-608.png]]
6.2	422
	423
	424
31.2	425	Without Relay, the LA66 USB can reach about 833meters.
6.2	426
31.2	427	[[image:1669021903207-809.png]]
6.2	428
	429
	430
31.2	431	With Relay, the LA66 USB can reach around 2km.
6.2	432
31.2	433	[[image:1669021922274-909.png]]
6.2	434
	435
34.2	436	== 7.5 Limited of using LA66 as relay of LoRaWAN ==
34.1	437
34.2	438
34.1	439	LA66 is a LoRa End Node module base on SX1262 core. Use it as relay as mentioned above has below limitation:
	440
	441	1. It only supports LoRa radio with fix frequency, fix DR (Spreading Factor) , Fix bandwidth and
	442	1. This method only support uplinks. It doesn;t work for LoRaWAN Downlink.
	443	1. Capacity depends on how often the end nodes sends send uplinks. The LA66 needs to spends around 1~~3 seconds to relay one packet ( depends on DR. inlcudes RX and TX time).
	444
	445
37.2	446
6.2	447	= 8. Technical Support =
	448
31.2	449
6.2	450	* 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.
	451
31.2	452	* 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.com>>url:file:///D:/市场资料/说明书/LoRa/LG02/support@dragino.com]]
6.2	453
31.5	454
37.2	455
6.2	456	= 9. Reference =
	457
	458
31.2	459	1. [[LoRaWAN official website. And Technicel document for LoRaWAN.>>url:https://lora-alliance.org/lorawan-for-developers]]
6.2	460
31.2	461	2. [[LoRa Low Energy design guide>>url:https://www.semtech.com/uploads/documents/LoraLowEnergyDesign_STD.pdf]] and [[Calculator Tool>>url:https://www.semtech.com/uploads/documents/SX1272LoRaCalculatorSetup1_1.zip]].
6.2	462
31.2	463	3. About Distance: [[LoRa Modem Design Guide>>url:https://www.semtech.com/uploads/documents/LoraDesignGuide_STD.pdf]]
6.2	464
31.2	465	4. User Manual: [[LPS8v2>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20All%20Gateway%20models/HP0C/]], [[LA66 LoRaWAN Shield>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/]] , [[LA66 USB LoRaWAN Adapter>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20USB%20LoRaWAN%20Adapter%20User%20Manual/]]
	466
16.2	467

Wiki source code of LoRaWAN IoT Kit v3 User Manual

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