Wiki source code of LA66 LoRaWAN Module

Version 87.17 by Xiaoling on 2022/07/13 10:13

version	line-number	content
87.2	1
	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	(((
65.1	16	(% 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	17	)))
1.1	18
87.15	19	(((
65.1	20	(% 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	21	)))
1.1	22
87.15	23	(((
65.1	24	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
87.15	25	)))
1.1	26
87.15	27	(((
65.1	28	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	29	)))
1.1	30
87.15	31	(((
65.1	32	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
87.15	33	)))
1.1	34
67.1	35
87.2	36	== 1.2 Features ==
64.1	37
68.1	38	* Support LoRaWAN v1.0.4 protocol
	39	* Support peer-to-peer protocol
	40	* TCXO crystal to ensure RF performance on low temperature
	41	* SMD Antenna pad and i-pex antenna connector
	42	* Available in different frequency LoRaWAN frequency bands.
	43	* World-wide unique OTAA keys.
69.1	44	* AT Command via UART-TTL interface
	45	* Firmware upgradable via UART interface
	46	* Ultra-long RF range
64.1	47
87.7	48
87.14	49
87.2	50	== 1.3 Specification ==
	51
68.1	52	* CPU: 32-bit 48 MHz
	53	* Flash: 256KB
	54	* RAM: 64KB
66.1	55	* Input Power Range: 1.8v ~~ 3.7v
	56	* Power Consumption: < 4uA.
	57	* Frequency Range: 150 MHz ~~ 960 MHz
	58	* Maximum Power +22 dBm constant RF output
	59	* High sensitivity: -148 dBm
	60	* Temperature:
	61	** Storage: -55 ~~ +125℃
	62	** Operating: -40 ~~ +85℃
	63	* Humidity:
	64	** Storage: 5 ~~ 95% (Non-Condensing)
	65	** Operating: 10 ~~ 95% (Non-Condensing)
	66	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	67	* LoRa Rx current: <9 mA
	68	* I/O Voltage: 3.3v
1.1	69
87.7	70
87.14	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
87.14	118
87.2	119	== 2.3 Specification ==
	120
71.1	121	* CPU: 32-bit 48 MHz
	122	* Flash: 256KB
	123	* RAM: 64KB
	124	* Input Power Range: 1.8v ~~ 3.7v
	125	* Power Consumption: < 4uA.
	126	* Frequency Range: 150 MHz ~~ 960 MHz
	127	* Maximum Power +22 dBm constant RF output
	128	* High sensitivity: -148 dBm
	129	* Temperature:
	130	** Storage: -55 ~~ +125℃
	131	** Operating: -40 ~~ +85℃
	132	* Humidity:
	133	** Storage: 5 ~~ 95% (Non-Condensing)
	134	** Operating: 10 ~~ 95% (Non-Condensing)
	135	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	136	* LoRa Rx current: <9 mA
	137	* I/O Voltage: 3.3v
	138
87.8	139
87.14	140
87.2	141	== 2.4 Pin Mapping & LED ==
11.1	142
	143
	144
87.2	145	== 2.5 Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
11.1	146
	147
87.2	148
	149	== 2.6 Example: Join TTN network and send an uplink message, get downlink message. ==
	150
	151
	152
	153	== 2.7 Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
	154
	155
	156
	157	== 2.8 Upgrade Firmware of LA66 LoRaWAN Shield ==
	158
	159
	160	=== 2.8.1 Items needed for update ===
	161
74.1	162	1. LA66 LoRaWAN Shield
	163	1. Arduino
	164	1. USB TO TTL Adapter
13.1	165
87.14	166
	167
	168
75.1	169	[[image:image-20220602100052-2.png\|\|height="385" width="600"]]
20.1	170
	171
87.2	172	=== 2.8.2 Connection ===
20.1	173
87.2	174
75.1	175	[[image:image-20220602101311-3.png\|\|height="276" width="600"]]
20.1	176
	177
87.17	178	(((
87.2	179	(% style="color:blue" %)LA66 LoRaWAN Shield(%%) <-> (% style="color:blue" %)USB TTL
87.17	180	)))
87.2	181
87.16	182	(((
87.2	183	(% style="background-color:yellow" %)**GND <-> GND
87.8	184	TXD <-> TXD
	185	RXD <-> RXD**
87.16	186	)))
87.2	187
	188
77.1	189	Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
20.1	190
75.1	191	Connect USB TTL Adapter to PC after connecting the wires
20.1	192
	193
75.1	194	[[image:image-20220602102240-4.png\|\|height="304" width="600"]]
20.1	195
	196
87.2	197	=== 2.8.3 Upgrade steps ===
20.1	198
	199
87.2	200	==== 1. Switch SW1 to put in ISP position ====
	201
	202
75.1	203	[[image:image-20220602102824-5.png\|\|height="306" width="600"]]
32.1	204
	205
87.9	206
87.2	207	==== 2. Press the RST switch once ====
32.1	208
87.10	209
75.1	210	[[image:image-20220602104701-12.png\|\|height="285" width="600"]]
32.1	211
75.1	212
87.9	213
87.2	214	==== 3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
75.1	215
39.1	216
87.2	217	(% 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/]]
	218
	219
32.1	220	[[image:image-20220602103227-6.png]]
	221
87.2	222
32.1	223	[[image:image-20220602103357-7.png]]
	224
	225
87.2	226
76.1	227	(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
87.2	228	(% style="color:blue" %)2. Select the COM port corresponding to USB TTL
76.1	229
87.2	230
32.1	231	[[image:image-20220602103844-8.png]]
	232
	233
87.2	234
76.1	235	(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
87.2	236	(% style="color:blue" %)3. Select the bin file to burn
76.1	237
87.2	238
32.1	239	[[image:image-20220602104144-9.png]]
	240
87.2	241
32.1	242	[[image:image-20220602104251-10.png]]
	243
87.2	244
32.1	245	[[image:image-20220602104402-11.png]]
	246
	247
87.2	248
76.1	249	(% class="wikigeneratedid" id="HClicktostartthedownload" %)
87.2	250	(% style="color:blue" %)4. Click to start the download
76.1	251
32.1	252	[[image:image-20220602104923-13.png]]
	253
	254
87.10	255
76.1	256	(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
87.2	257	(% style="color:blue" %)5. Check update process
76.1	258
87.2	259
32.1	260	[[image:image-20220602104948-14.png]]
	261
	262
87.2	263
76.1	264	(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
87.2	265	(% style="color:blue" %)The following picture shows that the burning is successful
76.1	266
32.1	267	[[image:image-20220602105251-15.png]]
	268
72.1	269
	270
87.2	271	= 3. LA66 USB LoRaWAN Adapter =
6.1	272
7.1	273
87.2	274	== 3.1 Overview ==
	275
73.1	276	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	277
73.1	278
87.2	279	== 3.2 Features ==
73.1	280
	281	* LoRaWAN USB adapter base on LA66 LoRaWAN module
	282	* Ultra-long RF range
	283	* Support LoRaWAN v1.0.4 protocol
	284	* Support peer-to-peer protocol
	285	* TCXO crystal to ensure RF performance on low temperature
	286	* Spring RF antenna
	287	* Available in different frequency LoRaWAN frequency bands.
	288	* World-wide unique OTAA keys.
	289	* AT Command via UART-TTL interface
	290	* Firmware upgradable via UART interface
	291
87.10	292
87.14	293
87.3	294	== 3.3 Specification ==
73.1	295
	296	* CPU: 32-bit 48 MHz
	297	* Flash: 256KB
	298	* RAM: 64KB
	299	* Input Power Range: 5v
	300	* Frequency Range: 150 MHz ~~ 960 MHz
	301	* Maximum Power +22 dBm constant RF output
	302	* High sensitivity: -148 dBm
	303	* Temperature:
	304	** Storage: -55 ~~ +125℃
	305	** Operating: -40 ~~ +85℃
	306	* Humidity:
	307	** Storage: 5 ~~ 95% (Non-Condensing)
	308	** Operating: 10 ~~ 95% (Non-Condensing)
	309	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	310	* LoRa Rx current: <9 mA
	311
87.10	312
87.14	313
87.3	314	== 3.4 Pin Mapping & LED ==
7.1	315
	316
87.3	317
	318	== 3.5 Example: Send & Get Messages via LoRaWAN in PC ==
	319
	320
78.2	321	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
58.1	322
	323
87.3	324	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN adapter to PC
	325
	326
78.2	327	[[image:image-20220602171217-1.png\|\|height="538" width="800"]]
	328
87.3	329
58.1	330	Open the serial port tool
	331
	332	[[image:image-20220602161617-8.png]]
	333
78.2	334	[[image:image-20220602161718-9.png\|\|height="457" width="800"]]
58.1	335
	336
	337
87.3	338	(% style="color:blue" %)2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
	339
78.2	340	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
58.1	341
87.3	342
78.2	343	[[image:image-20220602161935-10.png\|\|height="498" width="800"]]
58.1	344
78.2	345
	346
87.3	347	(% style="color:blue" %)3. See Uplink Command
78.2	348
87.3	349	Command format: (% style="color:#4472c4" %) AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	350
58.1	351	example: AT+SENDB=01,02,8,05820802581ea0a5
	352
78.2	353	[[image:image-20220602162157-11.png\|\|height="497" width="800"]]
58.1	354
	355
	356
87.3	357	(% style="color:blue" %)4. Check to see if TTN received the message
	358
78.2	359	[[image:image-20220602162331-12.png\|\|height="420" width="800"]]
	360
	361
	362
87.3	363	== 3.6 Example: Send PC's CPU/RAM usage to TTN via python ==
81.1	364
87.3	365
87.1	366	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	367
	368
87.3	369	(% style="color:red" %)Preconditions:
81.1	370
87.3	371	(% style="color:red" %)1. LA66 USB LoRaWAN Adapter works fine
81.1	372
87.3	373	(% style="color:red" %)2. LA66 USB LoRaWAN Adapter is registered with TTN
81.1	374
	375
	376
87.3	377	(% style="color:blue" %)Steps for usage:
	378
	379	(% style="color:blue" %)1.(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	380
	381	(% style="color:blue" %)2.(%%) Run the python script in PC and see the TTN
	382
81.1	383	[[image:image-20220602115852-3.png\|\|height="450" width="1187"]]
	384
	385
	386
87.4	387	== 3.7 Example: Send & Get Messages via LoRaWAN in RPi ==
11.1	388
87.4	389
79.1	390	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
12.1	391
79.1	392
87.5	393	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
87.4	394
78.2	395	[[image:image-20220602171233-2.png\|\|height="538" width="800"]]
43.1	396
52.1	397
	398
87.4	399	(% style="color:blue" %)2. Install Minicom in RPi.
	400
79.1	401	(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
52.1	402
87.4	403	(% style="background-color:yellow" %)apt update
52.1	404
87.4	405	(% style="background-color:yellow" %)apt install minicom
52.1	406
	407
79.1	408	Use minicom to connect to the RPI's terminal
52.1	409
79.1	410	[[image:image-20220602153146-3.png\|\|height="439" width="500"]]
52.1	411
	412
87.4	413
87.11	414	(% style="color:blue" %)3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.
8.1	415
87.11	416	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
	417
	418
79.1	419	[[image:image-20220602154928-5.png\|\|height="436" width="500"]]
46.1	420
	421
	422
87.4	423	(% style="color:blue" %)4. Send Uplink message
46.1	424
87.5	425	Format: (% style="color:#4472c4" %)AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
87.4	426
79.1	427	example: AT+SENDB=01,02,8,05820802581ea0a5
46.1	428
87.4	429
79.1	430	[[image:image-20220602160339-6.png\|\|height="517" width="600"]]
	431
87.4	432
	433
79.1	434	Check to see if TTN received the message
	435
	436	[[image:image-20220602160627-7.png\|\|height="369" width="800"]]
	437
	438
	439
87.4	440	== 3.8 Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
11.1	441
13.1	442
63.1	443
87.4	444	== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
73.1	445
	446
	447
	448
87.4	449	= 4. Order Info =
73.1	450
87.4	451
87.5	452	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	453
	454
87.5	455	(% style="color:blue" %)XXX(%%): The default frequency band
86.1	456
87.5	457	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	458	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	459	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	460	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	461	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	462	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	463	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	464	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	465	* (% style="color:red" %)PP(%%): Peer to Peer LoRa Protocol
73.1	466
78.1	467
87.4	468
	469	= 5. Reference =
	470
78.1	471	* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
	472
79.1	473

Wiki source code of LA66 LoRaWAN Module

Applications

Navigation