Wiki source code of LA66 LoRaWAN Module

Version 137.2 by Xiaoling on 2022/07/29 08:57

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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	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
87.2	66	== 1.3 Specification ==
	67
68.1	68	* CPU: 32-bit 48 MHz
	69	* Flash: 256KB
	70	* RAM: 64KB
66.1	71	* Input Power Range: 1.8v ~~ 3.7v
	72	* Power Consumption: < 4uA.
	73	* Frequency Range: 150 MHz ~~ 960 MHz
	74	* Maximum Power +22 dBm constant RF output
	75	* High sensitivity: -148 dBm
	76	* Temperature:
	77	** Storage: -55 ~~ +125℃
	78	** Operating: -40 ~~ +85℃
	79	* Humidity:
	80	** Storage: 5 ~~ 95% (Non-Condensing)
	81	** Operating: 10 ~~ 95% (Non-Condensing)
	82	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	83	* LoRa Rx current: <9 mA
	84	* I/O Voltage: 3.3v
1.1	85
134.11	86
87.2	87	== 1.4 AT Command ==
	88
98.2	89
66.1	90	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	91
3.1	92
98.4	93
87.2	94	== 1.5 Dimension ==
3.1	95
98.2	96	[[image:image-20220718094750-3.png]]
3.1	97
	98
5.1	99
87.2	100	== 1.6 Pin Mapping ==
	101
101.2	102	[[image:image-20220720111850-1.png]]
87.2	103
5.1	104
	105
87.2	106	== 1.7 Land Pattern ==
	107
5.1	108	[[image:image-20220517072821-2.png]]
	109
	110
	111
87.2	112	= 2. LA66 LoRaWAN Shield =
6.1	113
	114
87.2	115	== 2.1 Overview ==
	116
90.1	117
100.2	118	(((
	119	[[image:image-20220715000826-2.png\|\|height="145" width="220"]]
	120	)))
90.1	121
100.2	122	(((
	123
	124	)))
	125
	126	(((
100.4	127	(% 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	128	)))
71.1	129
90.1	130	(((
100.2	131	(((
101.4	132	(% 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	133	)))
100.2	134	)))
71.1	135
90.1	136	(((
100.2	137	(((
90.1	138	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
	139	)))
100.2	140	)))
90.1	141
	142	(((
100.2	143	(((
90.1	144	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.
	145	)))
100.2	146	)))
90.1	147
	148	(((
100.2	149	(((
90.1	150	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
	151	)))
100.2	152	)))
90.1	153
	154
100.2	155
87.2	156	== 2.2 Features ==
71.1	157
	158	* Arduino Shield base on LA66 LoRaWAN module
	159	* Support LoRaWAN v1.0.4 protocol
	160	* Support peer-to-peer protocol
	161	* TCXO crystal to ensure RF performance on low temperature
	162	* SMA connector
	163	* Available in different frequency LoRaWAN frequency bands.
	164	* World-wide unique OTAA keys.
	165	* AT Command via UART-TTL interface
	166	* Firmware upgradable via UART interface
	167	* Ultra-long RF range
	168
134.11	169
87.2	170	== 2.3 Specification ==
	171
71.1	172	* CPU: 32-bit 48 MHz
	173	* Flash: 256KB
	174	* RAM: 64KB
	175	* Input Power Range: 1.8v ~~ 3.7v
	176	* Power Consumption: < 4uA.
	177	* Frequency Range: 150 MHz ~~ 960 MHz
	178	* Maximum Power +22 dBm constant RF output
	179	* High sensitivity: -148 dBm
	180	* Temperature:
	181	** Storage: -55 ~~ +125℃
	182	** Operating: -40 ~~ +85℃
	183	* Humidity:
	184	** Storage: 5 ~~ 95% (Non-Condensing)
	185	** Operating: 10 ~~ 95% (Non-Condensing)
	186	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	187	* LoRa Rx current: <9 mA
	188	* I/O Voltage: 3.3v
	189
134.11	190
125.1	191	== 2.4 LED ==
11.1	192
134.5	193
125.1	194	~1. The LED lights up red when there is an upstream data packet
	195	2. When the network is successfully connected, the green light will be on for 5 seconds
	196	3. Purple light on when receiving downlink data packets
11.1	197
	198
134.5	199
87.2	200	== 2.5 Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
11.1	201
	202
134.3	203	Show connection diagram：
	204
	205
125.1	206	[[image:image-20220723170210-2.png\|\|height="908" width="681"]]
87.2	207
125.1	208
134.3	209
134.6	210	(% style="color:blue" %)1. open Arduino IDE
134.3	211
	212
125.1	213	[[image:image-20220723170545-4.png]]
	214
	215
134.3	216
134.6	217	(% style="color:blue" %)2. Open project
134.3	218
	219
134.7	220	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	221
137.1	222	[[image:image-20220726135239-1.png]]
125.1	223
	224
134.6	225	(% 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	226
137.1	227	[[image:image-20220726135356-2.png]]
134.3	228
125.1	229
134.6	230	(% style="color:blue" %)4. After the upload is successful, open the serial port monitoring and send the AT command
125.1	231
134.3	232
131.1	233	[[image:image-20220723172235-7.png\|\|height="480" width="1027"]]
125.1	234
134.3	235
	236
87.2	237	== 2.6 Example: Join TTN network and send an uplink message, get downlink message. ==
	238
	239
134.6	240	(% style="color:blue" %)1. Open project
134.3	241
	242
134.7	243	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	244
134.7	245
131.1	246	[[image:image-20220723172502-8.png]]
87.2	247
131.1	248
134.3	249
134.6	250	(% 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	251
	252
131.1	253	[[image:image-20220723172938-9.png\|\|height="652" width="1050"]]
	254
	255
134.2	256
133.1	257	== 2.7 Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
87.2	258
	259
134.6	260	(% style="color:blue" %)1. Open project
134.2	261
	262
134.7	263	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	264
	265
131.1	266	[[image:image-20220723173341-10.png\|\|height="581" width="1014"]]
87.2	267
131.1	268
134.2	269
134.6	270	(% 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	271
	272
131.1	273	[[image:image-20220723173950-11.png\|\|height="665" width="1012"]]
	274
	275
134.2	276
134.6	277	(% style="color:blue" %)3. Integration into Node-red via TTNV3
134.2	278
133.1	279	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/]]
	280
	281	[[image:image-20220723175700-12.png\|\|height="602" width="995"]]
	282
134.2	283
	284
87.2	285	== 2.8 Upgrade Firmware of LA66 LoRaWAN Shield ==
	286
	287
	288	=== 2.8.1 Items needed for update ===
	289
134.2	290
74.1	291	1. LA66 LoRaWAN Shield
	292	1. Arduino
	293	1. USB TO TTL Adapter
13.1	294
75.1	295	[[image:image-20220602100052-2.png\|\|height="385" width="600"]]
20.1	296
	297
87.2	298	=== 2.8.2 Connection ===
20.1	299
87.2	300
75.1	301	[[image:image-20220602101311-3.png\|\|height="276" width="600"]]
20.1	302
	303
87.17	304	(((
87.2	305	(% style="color:blue" %)LA66 LoRaWAN Shield(%%) <-> (% style="color:blue" %)USB TTL
87.17	306	)))
87.2	307
87.16	308	(((
87.2	309	(% style="background-color:yellow" %)**GND <-> GND
87.8	310	TXD <-> TXD
	311	RXD <-> RXD**
87.16	312	)))
87.2	313
	314
77.1	315	Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
20.1	316
75.1	317	Connect USB TTL Adapter to PC after connecting the wires
20.1	318
	319
75.1	320	[[image:image-20220602102240-4.png\|\|height="304" width="600"]]
20.1	321
	322
87.2	323	=== 2.8.3 Upgrade steps ===
20.1	324
	325
134.2	326	==== (% style="color:blue" %)1. Switch SW1 to put in ISP position(%%) ====
87.2	327
	328
75.1	329	[[image:image-20220602102824-5.png\|\|height="306" width="600"]]
32.1	330
	331
87.9	332
134.2	333	==== (% style="color:blue" %)2. Press the RST switch once(%%) ====
32.1	334
87.10	335
75.1	336	[[image:image-20220602104701-12.png\|\|height="285" width="600"]]
32.1	337
75.1	338
87.9	339
134.2	340	==== (% style="color:blue" %)3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
75.1	341
39.1	342
87.18	343	(((
87.2	344	(% 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	345	)))
87.2	346
	347
32.1	348	[[image:image-20220602103227-6.png]]
	349
87.2	350
32.1	351	[[image:image-20220602103357-7.png]]
	352
	353
87.2	354
76.1	355	(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
87.2	356	(% style="color:blue" %)2. Select the COM port corresponding to USB TTL
76.1	357
87.2	358
32.1	359	[[image:image-20220602103844-8.png]]
	360
	361
87.2	362
76.1	363	(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
87.2	364	(% style="color:blue" %)3. Select the bin file to burn
76.1	365
87.2	366
32.1	367	[[image:image-20220602104144-9.png]]
	368
87.2	369
32.1	370	[[image:image-20220602104251-10.png]]
	371
87.2	372
32.1	373	[[image:image-20220602104402-11.png]]
	374
	375
87.2	376
76.1	377	(% class="wikigeneratedid" id="HClicktostartthedownload" %)
87.2	378	(% style="color:blue" %)4. Click to start the download
76.1	379
32.1	380	[[image:image-20220602104923-13.png]]
	381
	382
87.10	383
76.1	384	(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
87.2	385	(% style="color:blue" %)5. Check update process
76.1	386
87.2	387
32.1	388	[[image:image-20220602104948-14.png]]
	389
	390
87.2	391
76.1	392	(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
87.2	393	(% style="color:blue" %)The following picture shows that the burning is successful
76.1	394
32.1	395	[[image:image-20220602105251-15.png]]
	396
72.1	397
	398
87.2	399	= 3. LA66 USB LoRaWAN Adapter =
6.1	400
7.1	401
87.2	402	== 3.1 Overview ==
	403
100.3	404
93.1	405	[[image:image-20220715001142-3.png\|\|height="145" width="220"]]
	406
100.3	407
100.5	408	(((
91.1	409	(% 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	410	)))
52.1	411
100.5	412	(((
101.4	413	(% 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	414	)))
73.1	415
100.5	416	(((
90.1	417	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
100.5	418	)))
90.1	419
100.5	420	(((
90.1	421	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	422	)))
90.1	423
100.5	424	(((
90.1	425	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
100.5	426	)))
90.1	427
	428
100.3	429
87.2	430	== 3.2 Features ==
73.1	431
	432	* LoRaWAN USB adapter base on LA66 LoRaWAN module
	433	* Ultra-long RF range
	434	* Support LoRaWAN v1.0.4 protocol
	435	* Support peer-to-peer protocol
	436	* TCXO crystal to ensure RF performance on low temperature
	437	* Spring RF antenna
	438	* Available in different frequency LoRaWAN frequency bands.
	439	* World-wide unique OTAA keys.
	440	* AT Command via UART-TTL interface
	441	* Firmware upgradable via UART interface
93.3	442	* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
73.1	443
87.3	444	== 3.3 Specification ==
73.1	445
	446	* CPU: 32-bit 48 MHz
	447	* Flash: 256KB
	448	* RAM: 64KB
	449	* Input Power Range: 5v
	450	* Frequency Range: 150 MHz ~~ 960 MHz
	451	* Maximum Power +22 dBm constant RF output
	452	* High sensitivity: -148 dBm
	453	* Temperature:
	454	** Storage: -55 ~~ +125℃
	455	** Operating: -40 ~~ +85℃
	456	* Humidity:
	457	** Storage: 5 ~~ 95% (Non-Condensing)
	458	** Operating: 10 ~~ 95% (Non-Condensing)
	459	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	460	* LoRa Rx current: <9 mA
	461
87.3	462	== 3.4 Pin Mapping & LED ==
7.1	463
	464
87.3	465
	466	== 3.5 Example: Send & Get Messages via LoRaWAN in PC ==
	467
	468
100.5	469	(((
78.2	470	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
100.5	471	)))
58.1	472
	473
87.3	474	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN adapter to PC
	475
	476
106.1	477	[[image:image-20220723100027-1.png]]
78.2	478
87.3	479
58.1	480	Open the serial port tool
	481
	482	[[image:image-20220602161617-8.png]]
	483
78.2	484	[[image:image-20220602161718-9.png\|\|height="457" width="800"]]
58.1	485
	486
	487
87.3	488	(% style="color:blue" %)2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
	489
78.2	490	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
58.1	491
87.3	492
78.2	493	[[image:image-20220602161935-10.png\|\|height="498" width="800"]]
58.1	494
78.2	495
	496
87.3	497	(% style="color:blue" %)3. See Uplink Command
78.2	498
87.3	499	Command format: (% style="color:#4472c4" %) AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	500
58.1	501	example: AT+SENDB=01,02,8,05820802581ea0a5
	502
78.2	503	[[image:image-20220602162157-11.png\|\|height="497" width="800"]]
58.1	504
	505
	506
87.3	507	(% style="color:blue" %)4. Check to see if TTN received the message
	508
78.2	509	[[image:image-20220602162331-12.png\|\|height="420" width="800"]]
	510
	511
	512
87.3	513	== 3.6 Example: Send PC's CPU/RAM usage to TTN via python ==
81.1	514
87.3	515
87.1	516	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	517
106.1	518	(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	519
87.3	520	(% style="color:red" %)Preconditions:
81.1	521
87.3	522	(% style="color:red" %)1. LA66 USB LoRaWAN Adapter works fine
81.1	523
87.3	524	(% style="color:red" %)2. LA66 USB LoRaWAN Adapter is registered with TTN
81.1	525
	526
	527
87.3	528	(% style="color:blue" %)Steps for usage:
	529
	530	(% style="color:blue" %)1.(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	531
	532	(% style="color:blue" %)2.(%%) Run the python script in PC and see the TTN
	533
81.1	534	[[image:image-20220602115852-3.png\|\|height="450" width="1187"]]
	535
	536
	537
87.4	538	== 3.7 Example: Send & Get Messages via LoRaWAN in RPi ==
11.1	539
87.4	540
79.1	541	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
12.1	542
79.1	543
87.5	544	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
87.4	545
106.1	546	[[image:image-20220723100439-2.png]]
43.1	547
52.1	548
	549
87.4	550	(% style="color:blue" %)2. Install Minicom in RPi.
	551
79.1	552	(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
52.1	553
87.4	554	(% style="background-color:yellow" %)apt update
52.1	555
87.4	556	(% style="background-color:yellow" %)apt install minicom
52.1	557
	558
79.1	559	Use minicom to connect to the RPI's terminal
52.1	560
79.1	561	[[image:image-20220602153146-3.png\|\|height="439" width="500"]]
52.1	562
	563
87.4	564
87.11	565	(% style="color:blue" %)3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.
8.1	566
87.11	567	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
	568
	569
79.1	570	[[image:image-20220602154928-5.png\|\|height="436" width="500"]]
46.1	571
	572
	573
87.4	574	(% style="color:blue" %)4. Send Uplink message
46.1	575
87.5	576	Format: (% style="color:#4472c4" %)AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
87.4	577
79.1	578	example: AT+SENDB=01,02,8,05820802581ea0a5
46.1	579
87.4	580
79.1	581	[[image:image-20220602160339-6.png\|\|height="517" width="600"]]
	582
87.4	583
	584
79.1	585	Check to see if TTN received the message
	586
	587	[[image:image-20220602160627-7.png\|\|height="369" width="800"]]
	588
	589
	590
134.1	591	== 3.8 Example: Use of LA66 USB LoRaWAN Adapter and APP sample process and DRAGINO-LA66-APP. ==
11.1	592
134.2	593
134.10	594	=== 3.8.1 DRAGINO-LA66-APP ===
13.1	595
134.2	596
106.1	597	[[image:image-20220723102027-3.png]]
63.1	598
106.1	599
134.2	600
	601	==== (% style="color:blue" %)Overview：(%%) ====
	602
	603
134.9	604	(((
134.1	605	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	606	)))
106.1	607
134.9	608	(((
111.1	609	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	610	)))
111.1	611
106.1	612
134.2	613
	614	==== (% style="color:blue" %)Conditions of Use：(%%) ====
	615
	616
106.1	617	Requires a type-c to USB adapter
	618
	619	[[image:image-20220723104754-4.png]]
	620
	621
134.2	622
	623	==== (% style="color:blue" %)Use of APP:(%%) ====
	624
	625
110.1	626	Function and page introduction
	627
	628	[[image:image-20220723113448-7.png\|\|height="1481" width="670"]]
	629
134.9	630
110.1	631	1.Display LA66 USB LoRaWAN Module connection status
	632
	633	2.Check and reconnect
	634
	635	3.Turn send timestamps on or off
	636
	637	4.Display LoRaWan connection status
	638
	639	5.Check LoRaWan connection status
	640
	641	6.The RSSI value of the node when the ACK is received
	642
	643	7.Node's Signal Strength Icon
	644
	645	8.Set the packet sending interval of the node in seconds
	646
	647	9.AT command input box
	648
	649	10.Send AT command button
	650
	651	11.Node log box
	652
	653	12.clear log button
	654
	655	13.exit button
	656
134.2	657
106.1	658	LA66 USB LoRaWAN Module not connected
	659
110.1	660	[[image:image-20220723110520-5.png\|\|height="903" width="677"]]
106.1	661
134.2	662
	663
110.1	664	Connect LA66 USB LoRaWAN Module
106.1	665
110.1	666	[[image:image-20220723110626-6.png\|\|height="906" width="680"]]
	667
134.2	668
	669
134.8	670	=== 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	671
	672
134.8	673	(% style="color:blue" %)1. Register LA66 USB LoRaWAN Module to TTNV3
134.2	674
113.1	675	[[image:image-20220723134549-8.png]]
	676
	677
134.2	678
134.8	679	(% style="color:blue" %)2. Open Node-RED,And import the JSON file to generate the flow
134.2	680
117.1	681	Sample JSON file please go to this link to download：放置JSON文件的链接
	682
115.1	683	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	684
117.1	685	The following is the positioning effect map
	686
	687	[[image:image-20220723144339-1.png]]
	688
134.2	689
	690
87.4	691	== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
73.1	692
134.2	693
134.1	694	The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
73.1	695
119.1	696	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	697
119.1	698	[[image:image-20220723150132-2.png]]
73.1	699
119.1	700
134.2	701
137.2	702	= 4. FAQ =
73.1	703
87.4	704
137.2	705	== 4.1 How to Compile Source Code for LA66? ==
	706
	707
	708	Compile and Upload Code to ASR6601 Platform ：
	709
	710
	711
	712	= 5. Order Info =
	713
	714
87.5	715	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	716
	717
87.5	718	(% style="color:blue" %)XXX(%%): The default frequency band
86.1	719
87.5	720	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	721	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	722	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	723	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	724	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	725	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	726	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	727	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	728	* (% style="color:red" %)PP(%%): Peer to Peer LoRa Protocol
73.1	729
134.8	730
134.12	731
137.2	732	= 6. Reference =
134.12	733
87.4	734
78.1	735	* 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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