Wiki source code of LoRaWAN IoT Kit v3 User Manual

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

Wiki source code of LoRaWAN IoT Kit v3 User Manual

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