Wiki source code of LA66 LoRaWAN Module

Version 137.1 by Herong Lu on 2022/07/26 13:54

version	line-number	content
134.2	1
87.2	2
87.13	3	Table of Contents:
	4
1.1	5	{{toc/}}
	6
	7
6.1	8
87.2	9	= 1. LA66 LoRaWAN Module =
	10
	11
	12	== 1.1 What is LA66 LoRaWAN Module ==
	13
	14
87.15	15	(((
100.2	16	(((
	17	[[image:image-20220719093358-2.png\|\|height="145" width="220"]](% style="color:blue" %)
	18	)))
88.2	19
100.2	20	(((
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	22	)))
	23
	24	(((
65.1	25	(% style="color:blue" %)Dragino LA66(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
87.15	26	)))
100.2	27	)))
1.1	28
87.15	29	(((
100.2	30	(((
101.4	31	(% style="color:blue" %)LA66(%%) is a ready-to-use module that includes the (% style="color:blue" %)LoRaWAN v1.0.3 protocol(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
87.15	32	)))
100.2	33	)))
1.1	34
87.15	35	(((
100.2	36	(((
65.1	37	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
87.15	38	)))
1.1	39
87.15	40	(((
65.1	41	Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)open-source peer-to-peer LoRa Protocol(%%) for the none-LoRaWAN application.
87.15	42	)))
100.2	43	)))
1.1	44
87.15	45	(((
100.2	46	(((
65.1	47	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
87.15	48	)))
100.2	49	)))
1.1	50
67.1	51
100.2	52
87.2	53	== 1.2 Features ==
64.1	54
68.1	55	* Support LoRaWAN v1.0.4 protocol
	56	* Support peer-to-peer protocol
	57	* TCXO crystal to ensure RF performance on low temperature
	58	* SMD Antenna pad and i-pex antenna connector
	59	* Available in different frequency LoRaWAN frequency bands.
	60	* World-wide unique OTAA keys.
69.1	61	* AT Command via UART-TTL interface
	62	* Firmware upgradable via UART interface
	63	* Ultra-long RF range
64.1	64
134.11	65
	66
87.2	67	== 1.3 Specification ==
	68
68.1	69	* CPU: 32-bit 48 MHz
	70	* Flash: 256KB
	71	* RAM: 64KB
66.1	72	* Input Power Range: 1.8v ~~ 3.7v
	73	* Power Consumption: < 4uA.
	74	* Frequency Range: 150 MHz ~~ 960 MHz
	75	* Maximum Power +22 dBm constant RF output
	76	* High sensitivity: -148 dBm
	77	* Temperature:
	78	** Storage: -55 ~~ +125℃
	79	** Operating: -40 ~~ +85℃
	80	* Humidity:
	81	** Storage: 5 ~~ 95% (Non-Condensing)
	82	** Operating: 10 ~~ 95% (Non-Condensing)
	83	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	84	* LoRa Rx current: <9 mA
	85	* I/O Voltage: 3.3v
1.1	86
134.11	87
	88
87.2	89	== 1.4 AT Command ==
	90
98.2	91
66.1	92	AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
1.1	93
3.1	94
98.4	95
87.2	96	== 1.5 Dimension ==
3.1	97
98.2	98	[[image:image-20220718094750-3.png]]
3.1	99
	100
5.1	101
87.2	102	== 1.6 Pin Mapping ==
	103
101.2	104	[[image:image-20220720111850-1.png]]
87.2	105
5.1	106
	107
87.2	108	== 1.7 Land Pattern ==
	109
5.1	110	[[image:image-20220517072821-2.png]]
	111
	112
	113
87.2	114	= 2. LA66 LoRaWAN Shield =
6.1	115
	116
87.2	117	== 2.1 Overview ==
	118
90.1	119
100.2	120	(((
	121	[[image:image-20220715000826-2.png\|\|height="145" width="220"]]
	122	)))
90.1	123
100.2	124	(((
	125
	126	)))
	127
	128	(((
100.4	129	(% style="color:blue" %)LA66 LoRaWAN Shield(%%) is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to Arduino projects.
100.2	130	)))
71.1	131
90.1	132	(((
100.2	133	(((
101.4	134	(% style="color:blue" %)LA66(%%) is a ready-to-use module that includes the (% style="color:blue" %)LoRaWAN v1.0.3 protocol(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
90.1	135	)))
100.2	136	)))
71.1	137
90.1	138	(((
100.2	139	(((
90.1	140	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
	141	)))
100.2	142	)))
90.1	143
	144	(((
100.2	145	(((
90.1	146	Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)open-source peer-to-peer LoRa Protocol(%%) for the none-LoRaWAN application.
	147	)))
100.2	148	)))
90.1	149
	150	(((
100.2	151	(((
90.1	152	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
	153	)))
100.2	154	)))
90.1	155
	156
100.2	157
87.2	158	== 2.2 Features ==
71.1	159
	160	* Arduino Shield base on LA66 LoRaWAN module
	161	* Support LoRaWAN v1.0.4 protocol
	162	* Support peer-to-peer protocol
	163	* TCXO crystal to ensure RF performance on low temperature
	164	* SMA connector
	165	* Available in different frequency LoRaWAN frequency bands.
	166	* World-wide unique OTAA keys.
	167	* AT Command via UART-TTL interface
	168	* Firmware upgradable via UART interface
	169	* Ultra-long RF range
	170
134.11	171
	172
87.2	173	== 2.3 Specification ==
	174
71.1	175	* CPU: 32-bit 48 MHz
	176	* Flash: 256KB
	177	* RAM: 64KB
	178	* Input Power Range: 1.8v ~~ 3.7v
	179	* Power Consumption: < 4uA.
	180	* Frequency Range: 150 MHz ~~ 960 MHz
	181	* Maximum Power +22 dBm constant RF output
	182	* High sensitivity: -148 dBm
	183	* Temperature:
	184	** Storage: -55 ~~ +125℃
	185	** Operating: -40 ~~ +85℃
	186	* Humidity:
	187	** Storage: 5 ~~ 95% (Non-Condensing)
	188	** Operating: 10 ~~ 95% (Non-Condensing)
	189	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	190	* LoRa Rx current: <9 mA
	191	* I/O Voltage: 3.3v
	192
134.11	193
	194
125.1	195	== 2.4 LED ==
11.1	196
134.5	197
125.1	198	~1. The LED lights up red when there is an upstream data packet
	199	2. When the network is successfully connected, the green light will be on for 5 seconds
	200	3. Purple light on when receiving downlink data packets
11.1	201
	202
134.5	203
87.2	204	== 2.5 Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
11.1	205
	206
134.3	207	Show connection diagram：
	208
	209
125.1	210	[[image:image-20220723170210-2.png\|\|height="908" width="681"]]
87.2	211
125.1	212
134.3	213
134.6	214	(% style="color:blue" %)1. open Arduino IDE
134.3	215
	216
125.1	217	[[image:image-20220723170545-4.png]]
	218
	219
134.3	220
134.6	221	(% style="color:blue" %)2. Open project
134.3	222
	223
134.7	224	LA66-LoRaWAN-shield-AT-command-via-Arduino-UNO source code link: [[https:~~/~~/www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0>>https://www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0]]
134.3	225
137.1	226	[[image:image-20220726135239-1.png]]
125.1	227
	228
134.6	229	(% style="color:blue" %)3. Click the button marked 1 in the figure to compile, and after the compilation is complete, click the button marked 2 in the figure to upload
134.3	230
137.1	231	[[image:image-20220726135356-2.png]]
134.3	232
125.1	233
134.6	234	(% style="color:blue" %)4. After the upload is successful, open the serial port monitoring and send the AT command
125.1	235
134.3	236
131.1	237	[[image:image-20220723172235-7.png\|\|height="480" width="1027"]]
125.1	238
134.3	239
	240
87.2	241	== 2.6 Example: Join TTN network and send an uplink message, get downlink message. ==
	242
	243
134.6	244	(% style="color:blue" %)1. Open project
134.3	245
	246
134.7	247	Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/0sjyncafa0gjv00/AACC2m1orov-QHRkvH8-ddCka?dl=0>>https://www.dropbox.com/sh/0sjyncafa0gjv00/AACC2m1orov-QHRkvH8-ddCka?dl=0]]
134.3	248
134.7	249
131.1	250	[[image:image-20220723172502-8.png]]
87.2	251
131.1	252
134.3	253
134.6	254	(% style="color:blue" %)2. Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
134.3	255
	256
131.1	257	[[image:image-20220723172938-9.png\|\|height="652" width="1050"]]
	258
	259
134.2	260
133.1	261	== 2.7 Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
87.2	262
	263
134.6	264	(% style="color:blue" %)1. Open project
134.2	265
	266
134.7	267	Log-Temperature-Sensor-and-send-data-to-TTN source code link: [[https:~~/~~/www.dropbox.com/sh/0aagmrpec1lxmva/AABMXWVMSHG9dK1_Zv_7xOmCa?dl=0>>https://www.dropbox.com/sh/0aagmrpec1lxmva/AABMXWVMSHG9dK1_Zv_7xOmCa?dl=0]]
134.2	268
	269
131.1	270	[[image:image-20220723173341-10.png\|\|height="581" width="1014"]]
87.2	271
131.1	272
134.2	273
134.6	274	(% style="color:blue" %)2. Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
134.2	275
	276
131.1	277	[[image:image-20220723173950-11.png\|\|height="665" width="1012"]]
	278
	279
134.2	280
134.6	281	(% style="color:blue" %)3. Integration into Node-red via TTNV3
134.2	282
133.1	283	For the usage of Node-RED, please refer to: [[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/>>http://8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/]]
	284
	285	[[image:image-20220723175700-12.png\|\|height="602" width="995"]]
	286
134.2	287
	288
87.2	289	== 2.8 Upgrade Firmware of LA66 LoRaWAN Shield ==
	290
	291
	292	=== 2.8.1 Items needed for update ===
	293
134.2	294
74.1	295	1. LA66 LoRaWAN Shield
	296	1. Arduino
	297	1. USB TO TTL Adapter
13.1	298
75.1	299	[[image:image-20220602100052-2.png\|\|height="385" width="600"]]
20.1	300
	301
87.2	302	=== 2.8.2 Connection ===
20.1	303
87.2	304
75.1	305	[[image:image-20220602101311-3.png\|\|height="276" width="600"]]
20.1	306
	307
87.17	308	(((
87.2	309	(% style="color:blue" %)LA66 LoRaWAN Shield(%%) <-> (% style="color:blue" %)USB TTL
87.17	310	)))
87.2	311
87.16	312	(((
87.2	313	(% style="background-color:yellow" %)**GND <-> GND
87.8	314	TXD <-> TXD
	315	RXD <-> RXD**
87.16	316	)))
87.2	317
	318
77.1	319	Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
20.1	320
75.1	321	Connect USB TTL Adapter to PC after connecting the wires
20.1	322
	323
75.1	324	[[image:image-20220602102240-4.png\|\|height="304" width="600"]]
20.1	325
	326
87.2	327	=== 2.8.3 Upgrade steps ===
20.1	328
	329
134.2	330	==== (% style="color:blue" %)1. Switch SW1 to put in ISP position(%%) ====
87.2	331
	332
75.1	333	[[image:image-20220602102824-5.png\|\|height="306" width="600"]]
32.1	334
	335
87.9	336
134.2	337	==== (% style="color:blue" %)2. Press the RST switch once(%%) ====
32.1	338
87.10	339
75.1	340	[[image:image-20220602104701-12.png\|\|height="285" width="600"]]
32.1	341
75.1	342
87.9	343
134.2	344	==== (% style="color:blue" %)3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
75.1	345
39.1	346
87.18	347	(((
87.2	348	(% style="color:blue" %)1. Software download link: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]
87.18	349	)))
87.2	350
	351
32.1	352	[[image:image-20220602103227-6.png]]
	353
87.2	354
32.1	355	[[image:image-20220602103357-7.png]]
	356
	357
87.2	358
76.1	359	(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
87.2	360	(% style="color:blue" %)2. Select the COM port corresponding to USB TTL
76.1	361
87.2	362
32.1	363	[[image:image-20220602103844-8.png]]
	364
	365
87.2	366
76.1	367	(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
87.2	368	(% style="color:blue" %)3. Select the bin file to burn
76.1	369
87.2	370
32.1	371	[[image:image-20220602104144-9.png]]
	372
87.2	373
32.1	374	[[image:image-20220602104251-10.png]]
	375
87.2	376
32.1	377	[[image:image-20220602104402-11.png]]
	378
	379
87.2	380
76.1	381	(% class="wikigeneratedid" id="HClicktostartthedownload" %)
87.2	382	(% style="color:blue" %)4. Click to start the download
76.1	383
32.1	384	[[image:image-20220602104923-13.png]]
	385
	386
87.10	387
76.1	388	(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
87.2	389	(% style="color:blue" %)5. Check update process
76.1	390
87.2	391
32.1	392	[[image:image-20220602104948-14.png]]
	393
	394
87.2	395
76.1	396	(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
87.2	397	(% style="color:blue" %)The following picture shows that the burning is successful
76.1	398
32.1	399	[[image:image-20220602105251-15.png]]
	400
72.1	401
	402
87.2	403	= 3. LA66 USB LoRaWAN Adapter =
6.1	404
7.1	405
87.2	406	== 3.1 Overview ==
	407
100.3	408
93.1	409	[[image:image-20220715001142-3.png\|\|height="145" width="220"]]
	410
100.3	411
100.5	412	(((
91.1	413	(% style="color:blue" %)LA66 USB LoRaWAN Adapter(%%) is designed to fast turn USB devices to support LoRaWAN wireless features. It combines a CP2101 USB TTL Chip and LA66 LoRaWAN module which can easy to add LoRaWAN wireless feature to PC / Mobile phone or an embedded device that has USB Interface.
100.5	414	)))
52.1	415
100.5	416	(((
101.4	417	(% style="color:blue" %)LA66(%%) is a ready-to-use module that includes the (% style="color:blue" %)LoRaWAN v1.0.3 protocol(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
100.5	418	)))
73.1	419
100.5	420	(((
90.1	421	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
100.5	422	)))
90.1	423
100.5	424	(((
90.1	425	Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)open-source peer-to-peer LoRa Protocol(%%) for the none-LoRaWAN application.
100.5	426	)))
90.1	427
100.5	428	(((
90.1	429	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
100.5	430	)))
90.1	431
	432
100.3	433
87.2	434	== 3.2 Features ==
73.1	435
	436	* LoRaWAN USB adapter base on LA66 LoRaWAN module
	437	* Ultra-long RF range
	438	* Support LoRaWAN v1.0.4 protocol
	439	* Support peer-to-peer protocol
	440	* TCXO crystal to ensure RF performance on low temperature
	441	* Spring RF antenna
	442	* Available in different frequency LoRaWAN frequency bands.
	443	* World-wide unique OTAA keys.
	444	* AT Command via UART-TTL interface
	445	* Firmware upgradable via UART interface
93.3	446	* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
73.1	447
87.3	448	== 3.3 Specification ==
73.1	449
	450	* CPU: 32-bit 48 MHz
	451	* Flash: 256KB
	452	* RAM: 64KB
	453	* Input Power Range: 5v
	454	* Frequency Range: 150 MHz ~~ 960 MHz
	455	* Maximum Power +22 dBm constant RF output
	456	* High sensitivity: -148 dBm
	457	* Temperature:
	458	** Storage: -55 ~~ +125℃
	459	** Operating: -40 ~~ +85℃
	460	* Humidity:
	461	** Storage: 5 ~~ 95% (Non-Condensing)
	462	** Operating: 10 ~~ 95% (Non-Condensing)
	463	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	464	* LoRa Rx current: <9 mA
	465
87.3	466	== 3.4 Pin Mapping & LED ==
7.1	467
	468
87.3	469
	470	== 3.5 Example: Send & Get Messages via LoRaWAN in PC ==
	471
	472
100.5	473	(((
78.2	474	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
100.5	475	)))
58.1	476
	477
87.3	478	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN adapter to PC
	479
	480
106.1	481	[[image:image-20220723100027-1.png]]
78.2	482
87.3	483
58.1	484	Open the serial port tool
	485
	486	[[image:image-20220602161617-8.png]]
	487
78.2	488	[[image:image-20220602161718-9.png\|\|height="457" width="800"]]
58.1	489
	490
	491
87.3	492	(% style="color:blue" %)2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
	493
78.2	494	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
58.1	495
87.3	496
78.2	497	[[image:image-20220602161935-10.png\|\|height="498" width="800"]]
58.1	498
78.2	499
	500
87.3	501	(% style="color:blue" %)3. See Uplink Command
78.2	502
87.3	503	Command format: (% style="color:#4472c4" %) AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	504
58.1	505	example: AT+SENDB=01,02,8,05820802581ea0a5
	506
78.2	507	[[image:image-20220602162157-11.png\|\|height="497" width="800"]]
58.1	508
	509
	510
87.3	511	(% style="color:blue" %)4. Check to see if TTN received the message
	512
78.2	513	[[image:image-20220602162331-12.png\|\|height="420" width="800"]]
	514
	515
	516
87.3	517	== 3.6 Example: Send PC's CPU/RAM usage to TTN via python ==
81.1	518
87.3	519
87.1	520	Use python as an example：[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py]]
81.1	521
106.1	522	(Raspberry Pi example: [[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
81.1	523
87.3	524	(% style="color:red" %)Preconditions:
81.1	525
87.3	526	(% style="color:red" %)1. LA66 USB LoRaWAN Adapter works fine
81.1	527
87.3	528	(% style="color:red" %)2. LA66 USB LoRaWAN Adapter is registered with TTN
81.1	529
	530
	531
87.3	532	(% style="color:blue" %)Steps for usage:
	533
	534	(% style="color:blue" %)1.(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	535
	536	(% style="color:blue" %)2.(%%) Run the python script in PC and see the TTN
	537
81.1	538	[[image:image-20220602115852-3.png\|\|height="450" width="1187"]]
	539
	540
	541
87.4	542	== 3.7 Example: Send & Get Messages via LoRaWAN in RPi ==
11.1	543
87.4	544
79.1	545	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
12.1	546
79.1	547
87.5	548	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
87.4	549
106.1	550	[[image:image-20220723100439-2.png]]
43.1	551
52.1	552
	553
87.4	554	(% style="color:blue" %)2. Install Minicom in RPi.
	555
79.1	556	(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
52.1	557
87.4	558	(% style="background-color:yellow" %)apt update
52.1	559
87.4	560	(% style="background-color:yellow" %)apt install minicom
52.1	561
	562
79.1	563	Use minicom to connect to the RPI's terminal
52.1	564
79.1	565	[[image:image-20220602153146-3.png\|\|height="439" width="500"]]
52.1	566
	567
87.4	568
87.11	569	(% style="color:blue" %)3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.
8.1	570
87.11	571	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
	572
	573
79.1	574	[[image:image-20220602154928-5.png\|\|height="436" width="500"]]
46.1	575
	576
	577
87.4	578	(% style="color:blue" %)4. Send Uplink message
46.1	579
87.5	580	Format: (% style="color:#4472c4" %)AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
87.4	581
79.1	582	example: AT+SENDB=01,02,8,05820802581ea0a5
46.1	583
87.4	584
79.1	585	[[image:image-20220602160339-6.png\|\|height="517" width="600"]]
	586
87.4	587
	588
79.1	589	Check to see if TTN received the message
	590
	591	[[image:image-20220602160627-7.png\|\|height="369" width="800"]]
	592
	593
	594
134.1	595	== 3.8 Example: Use of LA66 USB LoRaWAN Adapter and APP sample process and DRAGINO-LA66-APP. ==
11.1	596
134.2	597
134.10	598	=== 3.8.1 DRAGINO-LA66-APP ===
13.1	599
134.2	600
106.1	601	[[image:image-20220723102027-3.png]]
63.1	602
106.1	603
134.2	604
	605	==== (% style="color:blue" %)Overview：(%%) ====
	606
	607
134.9	608	(((
134.1	609	DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Adapter and APP sample process. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Adapter.
134.9	610	)))
106.1	611
134.9	612	(((
111.1	613	View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
134.9	614	)))
111.1	615
106.1	616
134.2	617
	618	==== (% style="color:blue" %)Conditions of Use：(%%) ====
	619
	620
106.1	621	Requires a type-c to USB adapter
	622
	623	[[image:image-20220723104754-4.png]]
	624
	625
134.2	626
	627	==== (% style="color:blue" %)Use of APP:(%%) ====
	628
	629
110.1	630	Function and page introduction
	631
	632	[[image:image-20220723113448-7.png\|\|height="1481" width="670"]]
	633
134.9	634
110.1	635	1.Display LA66 USB LoRaWAN Module connection status
	636
	637	2.Check and reconnect
	638
	639	3.Turn send timestamps on or off
	640
	641	4.Display LoRaWan connection status
	642
	643	5.Check LoRaWan connection status
	644
	645	6.The RSSI value of the node when the ACK is received
	646
	647	7.Node's Signal Strength Icon
	648
	649	8.Set the packet sending interval of the node in seconds
	650
	651	9.AT command input box
	652
	653	10.Send AT command button
	654
	655	11.Node log box
	656
	657	12.clear log button
	658
	659	13.exit button
	660
134.2	661
106.1	662	LA66 USB LoRaWAN Module not connected
	663
110.1	664	[[image:image-20220723110520-5.png\|\|height="903" width="677"]]
106.1	665
134.2	666
	667
110.1	668	Connect LA66 USB LoRaWAN Module
106.1	669
110.1	670	[[image:image-20220723110626-6.png\|\|height="906" width="680"]]
	671
134.2	672
	673
134.8	674	=== 3.8.2 Use DRAGINO-LA66-APP to obtain positioning information and send it to TTNV3 through LA66 USB LoRaWAN Adapter and integrate it into Node-RED ===
111.1	675
	676
134.8	677	(% style="color:blue" %)1. Register LA66 USB LoRaWAN Module to TTNV3
134.2	678
113.1	679	[[image:image-20220723134549-8.png]]
	680
	681
134.2	682
134.8	683	(% style="color:blue" %)2. Open Node-RED,And import the JSON file to generate the flow
134.2	684
117.1	685	Sample JSON file please go to this link to download：放置JSON文件的链接
	686
115.1	687	For the usage of Node-RED, please refer to: [[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/>>http://8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/]]
113.1	688
117.1	689	The following is the positioning effect map
	690
	691	[[image:image-20220723144339-1.png]]
	692
134.2	693
	694
87.4	695	== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
73.1	696
134.2	697
134.1	698	The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
73.1	699
119.1	700	Just use the yellow jumper cap to short the BOOT corner and the RX corner, and then press the RESET button (without the jumper cap, you can directly short the BOOT corner and the RX corner with a wire to achieve the same effect)
73.1	701
119.1	702	[[image:image-20220723150132-2.png]]
73.1	703
119.1	704
134.2	705
87.4	706	= 4. Order Info =
73.1	707
87.4	708
87.5	709	Part Number: (% style="color:blue" %)LA66-XXX(%%), (% style="color:blue" %)LA66-LoRaWAN-Shield-XXX (%%) or (% style="color:blue" %)LA66-USB-LoRaWAN-Adapter-XXX
87.4	710
	711
87.5	712	(% style="color:blue" %)XXX(%%): The default frequency band
86.1	713
87.5	714	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	715	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	716	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	717	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	718	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	719	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	720	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	721	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	722	* (% style="color:red" %)PP(%%): Peer to Peer LoRa Protocol
73.1	723
134.8	724
134.12	725
	726
87.4	727	= 5. Reference =
	728
134.2	729
78.1	730	* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]

Wiki source code of LA66 LoRaWAN Module

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