Wiki source code of LoRaWAN IoT Kit v3 User Manual

Version 31.5 by Xiaoling on 2022/11/21 17:21

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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
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	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
31.5	40
	41
6.2	42	== 1.3 What can you learn from the kit? ==
	43
	44
	45	(% style="color:blue" %)The goals through this LoRaWAN IoT kit v3:
	46
	47	* Understand the structure of an Internet of Things network, and how does an IoT network works
	48
	49	* Learn coding method for Arduino micro controller
	50
	51	* Learn some common sensors.
	52
	53	* Learn some basic commands for Linux
	54
	55	* Learn about LoRaWAN and how to set up a LoRaWAN network.
	56
	57	* Learn about Node-Red and how to set up it as IoT server and plot data.
	58
	59	* Learn different way to connect LoRaWAN network to IoT Server and compare their advantages / disadvantages.
	60
31.3	61
31.5	62
	63
6.2	64	== 1.4 What parts Dragino LoRa IoT v3 includes? ==
	65
	66
	67	[[image:1669019631002-626.png]]
	68
	69
	70
	71	(% style="color:blue" %)LoRaWAN IoT Kit v3 Packing List:
	72
	73	* [[LPS8v2>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/228-lps8v2.html]] LoRaWAN Gateway
	74
	75	* [[LA66 LoRaWAN Shield>>url:https://www.dragino.com/products/lora/item/231-la66-lorawan-shield.html]] for Arduino
	76
	77	* [[LA66 USB LoRaWAN Adapter>>url:https://www.dragino.com/products/lora/item/232-la66-usb-lorawan-adapter.html]] for PC/Mobile/RPi
	78
	79	* 1 x DHT11 Temperature & Humidity Sensor
	80
	81	* 1 x RGB LED
	82
	83	* 20 x dupont cable (male to male)
	84
	85	* 20 x dupont cable (female to female)
	86
	87	* 20 x dupont cable (male to female)
	88
31.3	89
31.5	90
	91
6.2	92	= 2. Example 1: Test a LoRaWAN network =
	93
	94
	95	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.
	96
	97	The network structure of this example is as below.
	98
	99
	100	[[image:1669019691933-772.png]]
	101
	102
31.3	103
6.2	104	(% style="color:blue" %)STEPS:
	105
	106	~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]]”
	107
	108	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.]].”
	109
	110	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]]”
	111
	112
31.3	113
6.2	114	(% style="color:blue" %)Result:
	115
	116	[[image:1669019732684-677.png]]
	117
	118
	119	= 3. Example 2: Test Built-In LoRaWAN Server =
	120
16.2	121
6.2	122	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.
	123
	124
16.2	125	[[image:1669019757521-444.png]]
	126
	127
6.2	128	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.
	129
	130	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:
	131
16.2	132	Input URL( __http:~/~/<hostname>:8080 or http:~/~/<local-IPV4-address> __) in your browser.
6.2	133
16.2	134	Such as __http:~/~/dragino-54ff12:8080 or http:~/~/<Local-IPV4-Address>__
6.2	135
	136
	137	(% style="color:blue" %)Login account:
	138
16.2	139	User ID: admin
6.2	140
16.2	141	Password: dragino
6.2	142
16.2	143	[[image:1669019821266-501.png]]
6.2	144
	145
	146
	147	= 4. Example 3: Test Built-in LoRaWAN server and Application server =
	148
16.2	149
6.2	150	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.
	151
	152
16.2	153	[[image:1669019855783-448.png]]
6.2	154
16.2	155
6.2	156	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
	157
	158	Below is the Node-Red access instruction of LPS8v2:
	159
16.2	160	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	161
16.2	162	Such as __http:~/~/dragino-54ff12:1880 or [[http:~~/~~/<Local-IPV4-Address~>>>http://<Local-IPV4-Address>]]__
6.2	163
	164
16.2	165	[[image:1669019884655-805.png]]
6.2	166
	167
	168	= 5. Example 4: Peer to Peer Test on end node =
	169
16.2	170
6.2	171	This example describes how to test peer to peer communicate between LoRa End Node.
	172
	173
16.2	174	[[image:1669019964124-630.png]]
	175
	176
6.2	177	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.
	178
31.4	179	* (% 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	180
31.4	181	* (% 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	182
	183	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.
	184
	185
	186	== 5.1 Set Up LA66 Shield + UNO ==
	187
	188	=== 5.1.1 Set up LA66 Module ===
	189
16.2	190
6.2	191	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:
	192
	193
16.2	194	(% style="color:#037691" %)AT+FRE=904.100,904.100 (%%) ~-~--> TX and RX frequency set: 9041100000
6.2	195
16.2	196	(% style="color:#037691" %)AT+BW=0,0 (%%) ~-~--> TX and RX Bandwidth set: 125kHz
6.2	197
16.2	198	(% style="color:#037691" %)AT+SF=12,12 (%%) ~-~--> TX and RX Spreading Factor set: SF10
6.2	199
16.2	200	(% style="color:#037691" %)AT+CRC=1,1 (%%) ~-~--> 0: CRC OFF ,1: CRC ON
6.2	201
16.2	202	(% style="color:#037691" %)AT+HEADER=0,0 (%%) ~-~--> Header Type: explicit, explicit
6.2	203
16.2	204	(% style="color:#037691" %)AT+CR=1,1 (%%) ~-~--> CR: 4/5, 4/5
6.2	205
16.2	206	(% style="color:#037691" %)AT+IQ=0,0 (%%) ~-~--> Invert IQ: 0,0
6.2	207
16.2	208	(% style="color:#037691" %)AT+PREAMBLE=8,8 (%%) ~-~--> TX and RX Preamble Length set: 8
6.2	209
16.2	210	(% style="color:#037691" %)AT+SYNCWORD=0 (%%) ~-~--> Syncword(0: private，1: public)
6.2	211
16.2	212	(% style="color:#037691" %)AT+RXMOD=6,0 (%%) ~-~--> Rx Timeout and Reply mode
6.2	213
	214
	215	=== 5.1.2 Hardware Connection ===
	216
	217
16.2	218	[[image:1669020260360-253.png]]
6.2	219
	220
16.2	221	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	222
16.2	223
6.2	224	=== 5.1.3 Set up Arduino UNO ===
	225
16.2	226
6.2	227	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]]
	228
	229
16.2	230	(% style="color:blue" %)Upload the code to UNO:
6.2	231
16.2	232	[[image:1669020288319-334.png]]
6.2	233
	234
	235
16.2	236	(% style="color:blue" %)Check the LA66 Shield data:
6.2	237
16.2	238	[[image:1669020309356-484.png]]
	239
	240
6.2	241	== 5.2 Set Up LA66 USB ==
	242
16.2	243
6.2	244	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:
	245
	246
16.2	247	(% style="color:#037691" %)AT+FRE=904.100,904.100(%%) ~-~-> TX and RX frequency set: 904100000
6.2	248
16.2	249	(% style="color:#037691" %)AT+BW=0,0 (%%) ~-~-> TX and RX Bandwidth set: 125kHz
6.2	250
16.2	251	(% style="color:#037691" %)AT+SF=10,10 (%%) ~-~-> TX and RX Spreading Factor set: SF10
6.2	252
16.2	253	(% style="color:#037691" %)AT+CRC=1,1 (%%) ~-~-> 0: CRC OFF ,1: CRC ON
6.2	254
16.2	255	(% style="color:#037691" %)AT+HEADER=0,0 (%%) ~-~-> Header Type: explicit, explicit
6.2	256
16.2	257	(% style="color:#037691" %)AT+CR=1,1 (%%) ~-~-> CR: 4/5, 4/5
6.2	258
16.2	259	(% style="color:#037691" %)AT+IQ=0,0 (%%) ~-~-> Invert IQ: 0,0
6.2	260
16.2	261	(% style="color:#037691" %)AT+PREAMBLE=8,8 (%%) ~-~-> TX and RX Preamble Length set: 8
6.2	262
16.2	263	(% style="color:#037691" %)AT+SYNCWORD=0 (%%) ~-~-> Syncword(0: private，1: public)
6.2	264
16.2	265	(% style="color:#037691" %)AT+RXMOD=65535,0 (%%) ~-~-> Set the receive mode
6.2	266
16.2	267	(% style="color:#037691" %)AT+RXDAFORM=1 (%%) ~-~-> ASCII to string
6.2	268
16.2	269
6.2	270	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.
	271
	272	For example, [[USB Serial Console>>url:https://play.google.com/store/apps/details?id=jp.sugnakys.usbserialconsole]] (Android Version Only)
	273
	274
16.2	275	[[image:1669020888886-358.png]]
6.2	276
	277
	278	The serial port configuration for LA66 USB is as follows:
	279
23.2	280	[[image:1669021003598-788.png]] [[image:1669021009003-965.png]]
6.2	281
23.2	282	(% style="display:none" %) (%%)
6.2	283
	284	== 5.3 Test result ==
	285
23.2	286
6.2	287	Users can view the temperature and humidity information received by LA66 USB in the mobile APP
	288
31.2	289	[[image:1669021002246-577.png]] [[image:1669021002645-501.png]]
6.2	290
	291	Send a message to the LA66 USB control LA66 Shield + UNO external RBG LED through the mobile phone:
	292
	293
31.4	294	For example, if you send (% style="color:blue" %)AT+SEND=1,000101,2,0(%%) the RBG LED will light up red.
6.2	295
31.2	296	[[image:1669021075655-472.png]]
6.2	297
	298
23.2	299	[[image:1669021098924-484.png]]
6.2	300
	301
31.2	302	= 6. Example 5: Peer to Peer Test and plot the data in LPS8v2 =
23.2	303
	304
6.2	305	This example describes how to test peer to peer communicate between LoRa End Node and LoRa Gateway.
	306
	307
31.2	308	[[image:1669021294907-277.png]]
	309
	310
6.2	311	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.
	312
31.2	313	* (% 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	314
31.2	315	* (% 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	316
	317	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.
	318
	319	(% style="color:red" %)Notice:
	320
31.3	321	1. LPS8v2 has LoRaWAN concentrator which doesn't do anything in this example. This example doesn't need this SX1302 concentrator.
	322
6.2	323	2. For mass deployment, user can use the LG01v2 instead of LPS8v2+LA66 USB. LG01v2 already include LA66 module inside.
	324
	325	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.
	326
	327
	328	= 7. Example 6: Limited LoRaWAN relay =
	329
	330
	331	This example describes a limited LoRaWAN relay method with the use of LA66 module.
	332
	333
31.2	334	[[image:1669021378154-590.png]]
6.2	335
	336
	337	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.
	338
31.2	339	* (% 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	340
31.2	341	* (% 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	342
31.2	343	(% 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	344
	345
	346	== 7.1 Set up LA66 USB ==
	347
31.2	348
6.2	349	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:
	350
31.2	351	(% style="color:#037691" %)AT+CHS=904100000 (%%) ~-~-> Fix frequency
6.2	352
31.2	353	(% style="color:#037691" %)AT+NJM=0 (%%) ~-~-> Set the ABP mode
6.2	354
31.2	355	(% style="color:#037691" %)AT+ADR=0 (%%) ~-~-> Close ADR
6.2	356
31.2	357	(% style="color:#037691" %)AT+DR=0 (%%) ~-~-> Fix DR=0
6.2	358
	359	Set up LA66 USB t work in ABP mode, use fix frequency(904100000) and fix DR0(SF10) to transmit data.
	360
	361
	362	== 7.2 Set up LA66 Shield ==
	363
31.2	364
6.2	365	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:
	366
31.2	367	(% style="color:#037691" %)AT+FRE=904.100,904.100(%%) ~-~-> TX and RX frequency set: 904100000
6.2	368
31.2	369	(% style="color:#037691" %)AT+BW=0,0(%%) ~-~-> TX and RX Bandwidth set: 125kHz
6.2	370
31.2	371	(% style="color:#037691" %)AT+SF=10,10(%%) ~-~-> TX and RX Spreading Factor set: SF10(corresponding toDR=0)
6.2	372
31.2	373	(% style="color:#037691" %)AT+CRC=1,1(%%) ~-~-> 0: CRC OFF ,1: CRC ON
6.2	374
31.2	375	(% style="color:#037691" %)AT+HEADER=0,0(%%) ~-~-> Header Type: explicit, explicit
6.2	376
31.2	377	(% style="color:#037691" %)AT+CR=1,1(%%) ~-~-> CR: 4/5, 4/5
6.2	378
31.2	379	(% style="color:#037691" %)AT+IQ=0,0(%%) ~-~-> Invert IQ: 0,0
6.2	380
31.2	381	(% style="color:#037691" %)AT+PREAMBLE=8,8(%%) ~-~-> TX and RX Preamble Length set: 8
6.2	382
31.2	383	(% style="color:#037691" %)AT+SYNCWORD=1(%%) ~-~-> Syncword(0: private，1: public)
6.2	384
31.2	385	(% style="color:#037691" %)AT+RXMOD=65535,1 (%%) ~-~-> Set the Relay mode
6.2	386
31.2	387	(% style="color:#037691" %)AT+WAITTIME=1000(%%) ~-~-> Relay wait time 1000ms
6.2	388
	389
	390	== 7.3 Uplink test ==
	391
	392
31.2	393	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	394
31.2	395	(% style="color:#037691" %)Command format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
6.2	396
31.2	397	[[image:1669021802668-328.png]]
6.2	398
31.2	399
6.2	400	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)
	401
31.2	402	[[image:1669021860044-222.png]]
6.2	403
	404
	405	== 7.4 Test result ==
	406
31.2	407
6.2	408	See two duplicate messages on Gateway Traffic.
	409
31.2	410	[[image:1669021878786-276.png]]
6.2	411
	412
31.2	413
6.2	414	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.
	415
31.2	416	[[image:1669021889556-608.png]]
6.2	417
	418
	419
31.2	420	Without Relay, the LA66 USB can reach about 833meters.
6.2	421
31.2	422	[[image:1669021903207-809.png]]
6.2	423
	424
	425
31.2	426	With Relay, the LA66 USB can reach around 2km.
6.2	427
31.2	428	[[image:1669021922274-909.png]]
6.2	429
	430
	431	= 8. Technical Support =
	432
31.2	433
6.2	434	* 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.
	435
31.2	436	* 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	437
31.5	438
	439
	440
6.2	441	= 9. Reference =
	442
	443
31.2	444	1. [[LoRaWAN official website. And Technicel document for LoRaWAN.>>url:https://lora-alliance.org/lorawan-for-developers]]
6.2	445
31.2	446	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	447
31.2	448	3. About Distance: [[LoRa Modem Design Guide>>url:https://www.semtech.com/uploads/documents/LoraDesignGuide_STD.pdf]]
6.2	449
31.2	450	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/]]
	451
16.2	452

Wiki source code of LoRaWAN IoT Kit v3 User Manual

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