Wiki source code of LA66 LoRaWAN Module

Version 87.8 by Xiaoling on 2022/07/13 10:01

version	line-number	content
87.2	1
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1.1	3	{{toc/}}
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6.1	6
87.2	7	= 1. LA66 LoRaWAN Module =
	8
	9
	10	== 1.1 What is LA66 LoRaWAN Module ==
	11
	12
65.1	13	(% 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.
1.1	14
65.1	15	(% 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.
1.1	16
65.1	17	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
1.1	18
65.1	19	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.
1.1	20
65.1	21	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
1.1	22
67.1	23
87.2	24	== 1.2 Features ==
64.1	25
68.1	26	* Support LoRaWAN v1.0.4 protocol
	27	* Support peer-to-peer protocol
	28	* TCXO crystal to ensure RF performance on low temperature
	29	* SMD Antenna pad and i-pex antenna connector
	30	* Available in different frequency LoRaWAN frequency bands.
	31	* World-wide unique OTAA keys.
69.1	32	* AT Command via UART-TTL interface
	33	* Firmware upgradable via UART interface
	34	* Ultra-long RF range
64.1	35
87.7	36
	37
87.2	38	== 1.3 Specification ==
	39
68.1	40	* CPU: 32-bit 48 MHz
	41	* Flash: 256KB
	42	* RAM: 64KB
66.1	43	* Input Power Range: 1.8v ~~ 3.7v
	44	* Power Consumption: < 4uA.
	45	* Frequency Range: 150 MHz ~~ 960 MHz
	46	* Maximum Power +22 dBm constant RF output
	47	* High sensitivity: -148 dBm
	48	* Temperature:
	49	** Storage: -55 ~~ +125℃
	50	** Operating: -40 ~~ +85℃
	51	* Humidity:
	52	** Storage: 5 ~~ 95% (Non-Condensing)
	53	** Operating: 10 ~~ 95% (Non-Condensing)
	54	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	55	* LoRa Rx current: <9 mA
	56	* I/O Voltage: 3.3v
1.1	57
87.7	58
	59
87.2	60	== 1.4 AT Command ==
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66.1	62	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	63
3.1	64
87.2	65	== 1.5 Dimension ==
3.1	66
66.1	67	[[image:image-20220517072526-1.png]]
3.1	68
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5.1	70
87.2	71	== 1.6 Pin Mapping ==
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10.2	74	[[image:image-20220523101537-1.png]]
5.1	75
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87.2	77
	78	== 1.7 Land Pattern ==
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5.1	80	[[image:image-20220517072821-2.png]]
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87.2	84	= 2. LA66 LoRaWAN Shield =
6.1	85
	86
87.2	87	== 2.1 Overview ==
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71.1	89	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.
	90
	91
87.2	92	== 2.2 Features ==
71.1	93
	94	* Arduino Shield base on LA66 LoRaWAN module
	95	* Support LoRaWAN v1.0.4 protocol
	96	* Support peer-to-peer protocol
	97	* TCXO crystal to ensure RF performance on low temperature
	98	* SMA connector
	99	* Available in different frequency LoRaWAN frequency bands.
	100	* World-wide unique OTAA keys.
	101	* AT Command via UART-TTL interface
	102	* Firmware upgradable via UART interface
	103	* Ultra-long RF range
	104
87.8	105
	106
87.2	107	== 2.3 Specification ==
	108
71.1	109	* CPU: 32-bit 48 MHz
	110	* Flash: 256KB
	111	* RAM: 64KB
	112	* Input Power Range: 1.8v ~~ 3.7v
	113	* Power Consumption: < 4uA.
	114	* Frequency Range: 150 MHz ~~ 960 MHz
	115	* Maximum Power +22 dBm constant RF output
	116	* High sensitivity: -148 dBm
	117	* Temperature:
	118	** Storage: -55 ~~ +125℃
	119	** Operating: -40 ~~ +85℃
	120	* Humidity:
	121	** Storage: 5 ~~ 95% (Non-Condensing)
	122	** Operating: 10 ~~ 95% (Non-Condensing)
	123	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	124	* LoRa Rx current: <9 mA
	125	* I/O Voltage: 3.3v
	126
87.8	127
	128
87.2	129	== 2.4 Pin Mapping & LED ==
11.1	130
	131
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87.2	133	== 2.5 Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
11.1	134
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87.2	136
	137	== 2.6 Example: Join TTN network and send an uplink message, get downlink message. ==
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	139
	140
	141	== 2.7 Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
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	143
	144
	145	== 2.8 Upgrade Firmware of LA66 LoRaWAN Shield ==
	146
	147
	148	=== 2.8.1 Items needed for update ===
	149
74.1	150	1. LA66 LoRaWAN Shield
	151	1. Arduino
	152	1. USB TO TTL Adapter
13.1	153
75.1	154	[[image:image-20220602100052-2.png\|\|height="385" width="600"]]
20.1	155
	156
87.2	157	=== 2.8.2 Connection ===
20.1	158
87.2	159
75.1	160	[[image:image-20220602101311-3.png\|\|height="276" width="600"]]
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87.2	163	(% style="color:blue" %)LA66 LoRaWAN Shield(%%) <-> (% style="color:blue" %)USB TTL
	164
	165	(% style="background-color:yellow" %)**GND <-> GND
87.8	166	TXD <-> TXD
	167	RXD <-> RXD**
87.2	168
	169
77.1	170	Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
20.1	171
75.1	172	Connect USB TTL Adapter to PC after connecting the wires
20.1	173
	174
75.1	175	[[image:image-20220602102240-4.png\|\|height="304" width="600"]]
20.1	176
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87.2	178	=== 2.8.3 Upgrade steps ===
20.1	179
	180
87.2	181	==== 1. Switch SW1 to put in ISP position ====
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75.1	184	[[image:image-20220602102824-5.png\|\|height="306" width="600"]]
32.1	185
	186
87.2	187	==== 2. Press the RST switch once ====
32.1	188
75.1	189	[[image:image-20220602104701-12.png\|\|height="285" width="600"]]
32.1	190
75.1	191
87.2	192	==== 3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
75.1	193
39.1	194
87.2	195	(% 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/]]
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32.1	198	[[image:image-20220602103227-6.png]]
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87.2	200
32.1	201	[[image:image-20220602103357-7.png]]
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87.2	204
76.1	205	(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
87.2	206	(% style="color:blue" %)2. Select the COM port corresponding to USB TTL
76.1	207
87.2	208
32.1	209	[[image:image-20220602103844-8.png]]
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87.2	212
76.1	213	(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
87.2	214	(% style="color:blue" %)3. Select the bin file to burn
76.1	215
87.2	216
32.1	217	[[image:image-20220602104144-9.png]]
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87.2	219
32.1	220	[[image:image-20220602104251-10.png]]
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87.2	222
32.1	223	[[image:image-20220602104402-11.png]]
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87.2	226
76.1	227	(% class="wikigeneratedid" id="HClicktostartthedownload" %)
87.2	228	(% style="color:blue" %)4. Click to start the download
76.1	229
32.1	230	[[image:image-20220602104923-13.png]]
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76.1	233	(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
87.2	234	(% style="color:blue" %)5. Check update process
76.1	235
87.2	236
32.1	237	[[image:image-20220602104948-14.png]]
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	239
87.2	240
76.1	241	(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
87.2	242	(% style="color:blue" %)The following picture shows that the burning is successful
76.1	243
32.1	244	[[image:image-20220602105251-15.png]]
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72.1	246
	247
87.2	248	= 3. LA66 USB LoRaWAN Adapter =
6.1	249
7.1	250
87.2	251	== 3.1 Overview ==
	252
73.1	253	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	254
73.1	255
87.2	256	== 3.2 Features ==
73.1	257
	258	* LoRaWAN USB adapter base on LA66 LoRaWAN module
	259	* Ultra-long RF range
	260	* Support LoRaWAN v1.0.4 protocol
	261	* Support peer-to-peer protocol
	262	* TCXO crystal to ensure RF performance on low temperature
	263	* Spring RF antenna
	264	* Available in different frequency LoRaWAN frequency bands.
	265	* World-wide unique OTAA keys.
	266	* AT Command via UART-TTL interface
	267	* Firmware upgradable via UART interface
	268
87.3	269	== 3.3 Specification ==
73.1	270
	271	* CPU: 32-bit 48 MHz
	272	* Flash: 256KB
	273	* RAM: 64KB
	274	* Input Power Range: 5v
	275	* Frequency Range: 150 MHz ~~ 960 MHz
	276	* Maximum Power +22 dBm constant RF output
	277	* High sensitivity: -148 dBm
	278	* Temperature:
	279	** Storage: -55 ~~ +125℃
	280	** Operating: -40 ~~ +85℃
	281	* Humidity:
	282	** Storage: 5 ~~ 95% (Non-Condensing)
	283	** Operating: 10 ~~ 95% (Non-Condensing)
	284	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	285	* LoRa Rx current: <9 mA
	286
87.3	287	== 3.4 Pin Mapping & LED ==
7.1	288
	289
87.3	290
	291	== 3.5 Example: Send & Get Messages via LoRaWAN in PC ==
	292
	293
78.2	294	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
58.1	295
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87.3	297	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN adapter to PC
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78.2	300	[[image:image-20220602171217-1.png\|\|height="538" width="800"]]
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87.3	302
58.1	303	Open the serial port tool
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	305	[[image:image-20220602161617-8.png]]
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78.2	307	[[image:image-20220602161718-9.png\|\|height="457" width="800"]]
58.1	308
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87.3	311	(% style="color:blue" %)2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
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78.2	313	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
58.1	314
87.3	315
78.2	316	[[image:image-20220602161935-10.png\|\|height="498" width="800"]]
58.1	317
78.2	318
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87.3	320	(% style="color:blue" %)3. See Uplink Command
78.2	321
87.3	322	Command format: (% style="color:#4472c4" %) AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
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58.1	324	example: AT+SENDB=01,02,8,05820802581ea0a5
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78.2	326	[[image:image-20220602162157-11.png\|\|height="497" width="800"]]
58.1	327
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87.3	330	(% style="color:blue" %)4. Check to see if TTN received the message
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78.2	332	[[image:image-20220602162331-12.png\|\|height="420" width="800"]]
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87.3	336	== 3.6 Example: Send PC's CPU/RAM usage to TTN via python ==
81.1	337
87.3	338
87.1	339	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]]
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87.3	342	(% style="color:red" %)Preconditions:
81.1	343
87.3	344	(% style="color:red" %)1. LA66 USB LoRaWAN Adapter works fine
81.1	345
87.3	346	(% style="color:red" %)2. LA66 USB LoRaWAN Adapter is registered with TTN
81.1	347
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87.3	350	(% style="color:blue" %)Steps for usage:
	351
	352	(% style="color:blue" %)1.(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	353
	354	(% style="color:blue" %)2.(%%) Run the python script in PC and see the TTN
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81.1	356	[[image:image-20220602115852-3.png\|\|height="450" width="1187"]]
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	358
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87.4	360	== 3.7 Example: Send & Get Messages via LoRaWAN in RPi ==
11.1	361
87.4	362
79.1	363	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
12.1	364
79.1	365
87.5	366	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
87.4	367
78.2	368	[[image:image-20220602171233-2.png\|\|height="538" width="800"]]
43.1	369
52.1	370
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87.4	372	(% style="color:blue" %)2. Install Minicom in RPi.
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79.1	374	(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
52.1	375
87.4	376	(% style="background-color:yellow" %)apt update
52.1	377
87.4	378	(% style="background-color:yellow" %)apt install minicom
52.1	379
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79.1	381	Use minicom to connect to the RPI's terminal
52.1	382
79.1	383	[[image:image-20220602153146-3.png\|\|height="439" width="500"]]
52.1	384
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87.4	386
87.5	387	(% style="color:blue" %)3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.(%%)
	388	(% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
8.1	389
79.1	390	[[image:image-20220602154928-5.png\|\|height="436" width="500"]]
46.1	391
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87.4	394	(% style="color:blue" %)4. Send Uplink message
46.1	395
87.5	396	Format: (% style="color:#4472c4" %)AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
87.4	397
79.1	398	example: AT+SENDB=01,02,8,05820802581ea0a5
46.1	399
87.4	400
79.1	401	[[image:image-20220602160339-6.png\|\|height="517" width="600"]]
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87.4	403
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79.1	405	Check to see if TTN received the message
	406
	407	[[image:image-20220602160627-7.png\|\|height="369" width="800"]]
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87.4	411	== 3.8 Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
11.1	412
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63.1	414
87.4	415	== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
73.1	416
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87.4	420	= 4. Order Info =
73.1	421
87.4	422
87.5	423	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	424
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87.5	426	(% style="color:blue" %)XXX(%%): The default frequency band
86.1	427
87.5	428	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	429	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	430	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	431	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	432	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	433	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	434	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	435	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	436	* (% style="color:red" %)PP(%%): Peer to Peer LoRa Protocol
73.1	437
78.1	438
87.4	439
	440
	441	= 5. Reference =
	442
78.1	443	* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
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79.1	445

Wiki source code of LA66 LoRaWAN Module

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