Wiki source code of LA66 LoRaWAN Module

Version 88.2 by Edwin Chen on 2022/07/15 00:07

version	line-number	content
87.2	1
	2
87.13	3	Table of Contents:
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1.1	5	{{toc/}}
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	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	(((
88.2	16	[[image:image-20220715000242-1.png\|\|height="110" width="132"]]
	17
65.1	18	(% 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	19	)))
1.1	20
87.15	21	(((
65.1	22	(% style="color:blue" %)LA66(%%) is a ready-to-use module that includes the (% style="color:blue" %)LoRaWAN v1.0.4 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	23	)))
1.1	24
87.15	25	(((
65.1	26	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
87.15	27	)))
1.1	28
87.15	29	(((
65.1	30	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	31	)))
1.1	32
87.15	33	(((
65.1	34	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
87.15	35	)))
1.1	36
67.1	37
87.2	38	== 1.2 Features ==
64.1	39
68.1	40	* Support LoRaWAN v1.0.4 protocol
	41	* Support peer-to-peer protocol
	42	* TCXO crystal to ensure RF performance on low temperature
	43	* SMD Antenna pad and i-pex antenna connector
	44	* Available in different frequency LoRaWAN frequency bands.
	45	* World-wide unique OTAA keys.
69.1	46	* AT Command via UART-TTL interface
	47	* Firmware upgradable via UART interface
	48	* Ultra-long RF range
64.1	49
87.7	50
87.2	51	== 1.3 Specification ==
	52
68.1	53	* CPU: 32-bit 48 MHz
	54	* Flash: 256KB
	55	* RAM: 64KB
66.1	56	* Input Power Range: 1.8v ~~ 3.7v
	57	* Power Consumption: < 4uA.
	58	* Frequency Range: 150 MHz ~~ 960 MHz
	59	* Maximum Power +22 dBm constant RF output
	60	* High sensitivity: -148 dBm
	61	* Temperature:
	62	** Storage: -55 ~~ +125℃
	63	** Operating: -40 ~~ +85℃
	64	* Humidity:
	65	** Storage: 5 ~~ 95% (Non-Condensing)
	66	** Operating: 10 ~~ 95% (Non-Condensing)
	67	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	68	* LoRa Rx current: <9 mA
	69	* I/O Voltage: 3.3v
1.1	70
87.7	71
87.2	72	== 1.4 AT Command ==
	73
66.1	74	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	75
3.1	76
87.2	77	== 1.5 Dimension ==
3.1	78
66.1	79	[[image:image-20220517072526-1.png]]
3.1	80
	81
5.1	82
87.2	83	== 1.6 Pin Mapping ==
	84
	85
10.2	86	[[image:image-20220523101537-1.png]]
5.1	87
	88
87.2	89
	90	== 1.7 Land Pattern ==
	91
5.1	92	[[image:image-20220517072821-2.png]]
	93
	94
	95
87.2	96	= 2. LA66 LoRaWAN Shield =
6.1	97
	98
87.2	99	== 2.1 Overview ==
	100
71.1	101	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.
	102
	103
87.2	104	== 2.2 Features ==
71.1	105
	106	* Arduino Shield base on LA66 LoRaWAN module
	107	* Support LoRaWAN v1.0.4 protocol
	108	* Support peer-to-peer protocol
	109	* TCXO crystal to ensure RF performance on low temperature
	110	* SMA connector
	111	* Available in different frequency LoRaWAN frequency bands.
	112	* World-wide unique OTAA keys.
	113	* AT Command via UART-TTL interface
	114	* Firmware upgradable via UART interface
	115	* Ultra-long RF range
	116
87.8	117
87.2	118	== 2.3 Specification ==
	119
71.1	120	* CPU: 32-bit 48 MHz
	121	* Flash: 256KB
	122	* RAM: 64KB
	123	* Input Power Range: 1.8v ~~ 3.7v
	124	* Power Consumption: < 4uA.
	125	* Frequency Range: 150 MHz ~~ 960 MHz
	126	* Maximum Power +22 dBm constant RF output
	127	* High sensitivity: -148 dBm
	128	* Temperature:
	129	** Storage: -55 ~~ +125℃
	130	** Operating: -40 ~~ +85℃
	131	* Humidity:
	132	** Storage: 5 ~~ 95% (Non-Condensing)
	133	** Operating: 10 ~~ 95% (Non-Condensing)
	134	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	135	* LoRa Rx current: <9 mA
	136	* I/O Voltage: 3.3v
	137
87.8	138
87.2	139	== 2.4 Pin Mapping & LED ==
11.1	140
	141
	142
87.2	143	== 2.5 Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
11.1	144
	145
87.2	146
	147	== 2.6 Example: Join TTN network and send an uplink message, get downlink message. ==
	148
	149
	150
	151	== 2.7 Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
	152
	153
	154
	155	== 2.8 Upgrade Firmware of LA66 LoRaWAN Shield ==
	156
	157
	158	=== 2.8.1 Items needed for update ===
	159
74.1	160	1. LA66 LoRaWAN Shield
	161	1. Arduino
	162	1. USB TO TTL Adapter
13.1	163
87.14	164
	165
75.1	166	[[image:image-20220602100052-2.png\|\|height="385" width="600"]]
20.1	167
	168
87.2	169	=== 2.8.2 Connection ===
20.1	170
87.2	171
75.1	172	[[image:image-20220602101311-3.png\|\|height="276" width="600"]]
20.1	173
	174
87.17	175	(((
87.2	176	(% style="color:blue" %)LA66 LoRaWAN Shield(%%) <-> (% style="color:blue" %)USB TTL
87.17	177	)))
87.2	178
87.16	179	(((
87.2	180	(% style="background-color:yellow" %)**GND <-> GND
87.8	181	TXD <-> TXD
	182	RXD <-> RXD**
87.16	183	)))
87.2	184
	185
77.1	186	Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
20.1	187
75.1	188	Connect USB TTL Adapter to PC after connecting the wires
20.1	189
	190
75.1	191	[[image:image-20220602102240-4.png\|\|height="304" width="600"]]
20.1	192
	193
87.2	194	=== 2.8.3 Upgrade steps ===
20.1	195
	196
87.2	197	==== 1. Switch SW1 to put in ISP position ====
	198
	199
75.1	200	[[image:image-20220602102824-5.png\|\|height="306" width="600"]]
32.1	201
	202
87.9	203
87.2	204	==== 2. Press the RST switch once ====
32.1	205
87.10	206
75.1	207	[[image:image-20220602104701-12.png\|\|height="285" width="600"]]
32.1	208
75.1	209
87.9	210
87.2	211	==== 3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
75.1	212
39.1	213
87.18	214	(((
87.2	215	(% 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	216	)))
87.2	217
	218
32.1	219	[[image:image-20220602103227-6.png]]
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87.2	221
32.1	222	[[image:image-20220602103357-7.png]]
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87.2	225
76.1	226	(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
87.2	227	(% style="color:blue" %)2. Select the COM port corresponding to USB TTL
76.1	228
87.2	229
32.1	230	[[image:image-20220602103844-8.png]]
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	232
87.2	233
76.1	234	(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
87.2	235	(% style="color:blue" %)3. Select the bin file to burn
76.1	236
87.2	237
32.1	238	[[image:image-20220602104144-9.png]]
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87.2	240
32.1	241	[[image:image-20220602104251-10.png]]
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87.2	243
32.1	244	[[image:image-20220602104402-11.png]]
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87.2	247
76.1	248	(% class="wikigeneratedid" id="HClicktostartthedownload" %)
87.2	249	(% style="color:blue" %)4. Click to start the download
76.1	250
32.1	251	[[image:image-20220602104923-13.png]]
	252
	253
87.10	254
76.1	255	(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
87.2	256	(% style="color:blue" %)5. Check update process
76.1	257
87.2	258
32.1	259	[[image:image-20220602104948-14.png]]
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	261
87.2	262
76.1	263	(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
87.2	264	(% style="color:blue" %)The following picture shows that the burning is successful
76.1	265
32.1	266	[[image:image-20220602105251-15.png]]
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72.1	268
	269
87.2	270	= 3. LA66 USB LoRaWAN Adapter =
6.1	271
7.1	272
87.2	273	== 3.1 Overview ==
	274
73.1	275	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.
52.1	276
73.1	277
87.2	278	== 3.2 Features ==
73.1	279
	280	* LoRaWAN USB adapter base on LA66 LoRaWAN module
	281	* Ultra-long RF range
	282	* Support LoRaWAN v1.0.4 protocol
	283	* Support peer-to-peer protocol
	284	* TCXO crystal to ensure RF performance on low temperature
	285	* Spring RF antenna
	286	* Available in different frequency LoRaWAN frequency bands.
	287	* World-wide unique OTAA keys.
	288	* AT Command via UART-TTL interface
	289	* Firmware upgradable via UART interface
	290
87.10	291
87.3	292	== 3.3 Specification ==
73.1	293
	294	* CPU: 32-bit 48 MHz
	295	* Flash: 256KB
	296	* RAM: 64KB
	297	* Input Power Range: 5v
	298	* Frequency Range: 150 MHz ~~ 960 MHz
	299	* Maximum Power +22 dBm constant RF output
	300	* High sensitivity: -148 dBm
	301	* Temperature:
	302	** Storage: -55 ~~ +125℃
	303	** Operating: -40 ~~ +85℃
	304	* Humidity:
	305	** Storage: 5 ~~ 95% (Non-Condensing)
	306	** Operating: 10 ~~ 95% (Non-Condensing)
	307	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	308	* LoRa Rx current: <9 mA
	309
87.10	310
87.3	311	== 3.4 Pin Mapping & LED ==
7.1	312
	313
87.3	314
	315	== 3.5 Example: Send & Get Messages via LoRaWAN in PC ==
	316
	317
78.2	318	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
58.1	319
	320
87.3	321	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN adapter to PC
	322
	323
78.2	324	[[image:image-20220602171217-1.png\|\|height="538" width="800"]]
	325
87.3	326
58.1	327	Open the serial port tool
	328
	329	[[image:image-20220602161617-8.png]]
	330
78.2	331	[[image:image-20220602161718-9.png\|\|height="457" width="800"]]
58.1	332
	333
	334
87.3	335	(% style="color:blue" %)2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
	336
78.2	337	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
58.1	338
87.3	339
78.2	340	[[image:image-20220602161935-10.png\|\|height="498" width="800"]]
58.1	341
78.2	342
	343
87.3	344	(% style="color:blue" %)3. See Uplink Command
78.2	345
87.3	346	Command format: (% style="color:#4472c4" %) AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	347
58.1	348	example: AT+SENDB=01,02,8,05820802581ea0a5
	349
78.2	350	[[image:image-20220602162157-11.png\|\|height="497" width="800"]]
58.1	351
	352
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87.3	354	(% style="color:blue" %)4. Check to see if TTN received the message
	355
78.2	356	[[image:image-20220602162331-12.png\|\|height="420" width="800"]]
	357
	358
	359
87.3	360	== 3.6 Example: Send PC's CPU/RAM usage to TTN via python ==
81.1	361
87.3	362
87.1	363	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	364
	365
87.3	366	(% style="color:red" %)Preconditions:
81.1	367
87.3	368	(% style="color:red" %)1. LA66 USB LoRaWAN Adapter works fine
81.1	369
87.3	370	(% style="color:red" %)2. LA66 USB LoRaWAN Adapter is registered with TTN
81.1	371
	372
	373
87.3	374	(% style="color:blue" %)Steps for usage:
	375
	376	(% style="color:blue" %)1.(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	377
	378	(% style="color:blue" %)2.(%%) Run the python script in PC and see the TTN
	379
81.1	380	[[image:image-20220602115852-3.png\|\|height="450" width="1187"]]
	381
	382
	383
87.4	384	== 3.7 Example: Send & Get Messages via LoRaWAN in RPi ==
11.1	385
87.4	386
79.1	387	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
12.1	388
79.1	389
87.5	390	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
87.4	391
78.2	392	[[image:image-20220602171233-2.png\|\|height="538" width="800"]]
43.1	393
52.1	394
	395
87.4	396	(% style="color:blue" %)2. Install Minicom in RPi.
	397
79.1	398	(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
52.1	399
87.4	400	(% style="background-color:yellow" %)apt update
52.1	401
87.4	402	(% style="background-color:yellow" %)apt install minicom
52.1	403
	404
79.1	405	Use minicom to connect to the RPI's terminal
52.1	406
79.1	407	[[image:image-20220602153146-3.png\|\|height="439" width="500"]]
52.1	408
	409
87.4	410
87.11	411	(% style="color:blue" %)3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.
8.1	412
87.11	413	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
	414
	415
79.1	416	[[image:image-20220602154928-5.png\|\|height="436" width="500"]]
46.1	417
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	419
87.4	420	(% style="color:blue" %)4. Send Uplink message
46.1	421
87.5	422	Format: (% style="color:#4472c4" %)AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
87.4	423
79.1	424	example: AT+SENDB=01,02,8,05820802581ea0a5
46.1	425
87.4	426
79.1	427	[[image:image-20220602160339-6.png\|\|height="517" width="600"]]
	428
87.4	429
	430
79.1	431	Check to see if TTN received the message
	432
	433	[[image:image-20220602160627-7.png\|\|height="369" width="800"]]
	434
	435
	436
87.4	437	== 3.8 Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
11.1	438
13.1	439
63.1	440
87.4	441	== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
73.1	442
	443
	444
	445
87.4	446	= 4. Order Info =
73.1	447
87.4	448
87.5	449	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	450
	451
87.5	452	(% style="color:blue" %)XXX(%%): The default frequency band
86.1	453
87.5	454	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	455	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	456	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	457	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	458	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	459	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	460	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	461	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	462	* (% style="color:red" %)PP(%%): Peer to Peer LoRa Protocol
73.1	463
78.1	464
87.4	465	= 5. Reference =
	466
78.1	467	* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
	468

Wiki source code of LA66 LoRaWAN Module

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