Wiki source code of LA66 LoRaWAN Module

Version 87.9 by Xiaoling on 2022/07/13 10:02

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
	76
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
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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
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	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
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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
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87.9	187
87.2	188	==== 2. Press the RST switch once ====
32.1	189
75.1	190	[[image:image-20220602104701-12.png\|\|height="285" width="600"]]
32.1	191
75.1	192
87.9	193
87.2	194	==== 3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
75.1	195
39.1	196
87.2	197	(% 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	200	[[image:image-20220602103227-6.png]]
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87.2	202
32.1	203	[[image:image-20220602103357-7.png]]
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87.2	206
76.1	207	(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
87.2	208	(% style="color:blue" %)2. Select the COM port corresponding to USB TTL
76.1	209
87.2	210
32.1	211	[[image:image-20220602103844-8.png]]
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87.2	214
76.1	215	(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
87.2	216	(% style="color:blue" %)3. Select the bin file to burn
76.1	217
87.2	218
32.1	219	[[image:image-20220602104144-9.png]]
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87.2	221
32.1	222	[[image:image-20220602104251-10.png]]
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87.2	224
32.1	225	[[image:image-20220602104402-11.png]]
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87.2	228
76.1	229	(% class="wikigeneratedid" id="HClicktostartthedownload" %)
87.2	230	(% style="color:blue" %)4. Click to start the download
76.1	231
32.1	232	[[image:image-20220602104923-13.png]]
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76.1	235	(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
87.2	236	(% style="color:blue" %)5. Check update process
76.1	237
87.2	238
32.1	239	[[image:image-20220602104948-14.png]]
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87.2	242
76.1	243	(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
87.2	244	(% style="color:blue" %)The following picture shows that the burning is successful
76.1	245
32.1	246	[[image:image-20220602105251-15.png]]
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72.1	248
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87.2	250	= 3. LA66 USB LoRaWAN Adapter =
6.1	251
7.1	252
87.2	253	== 3.1 Overview ==
	254
73.1	255	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	256
73.1	257
87.2	258	== 3.2 Features ==
73.1	259
	260	* LoRaWAN USB adapter base on LA66 LoRaWAN module
	261	* Ultra-long RF range
	262	* Support LoRaWAN v1.0.4 protocol
	263	* Support peer-to-peer protocol
	264	* TCXO crystal to ensure RF performance on low temperature
	265	* Spring RF antenna
	266	* Available in different frequency LoRaWAN frequency bands.
	267	* World-wide unique OTAA keys.
	268	* AT Command via UART-TTL interface
	269	* Firmware upgradable via UART interface
	270
87.3	271	== 3.3 Specification ==
73.1	272
	273	* CPU: 32-bit 48 MHz
	274	* Flash: 256KB
	275	* RAM: 64KB
	276	* Input Power Range: 5v
	277	* Frequency Range: 150 MHz ~~ 960 MHz
	278	* Maximum Power +22 dBm constant RF output
	279	* High sensitivity: -148 dBm
	280	* Temperature:
	281	** Storage: -55 ~~ +125℃
	282	** Operating: -40 ~~ +85℃
	283	* Humidity:
	284	** Storage: 5 ~~ 95% (Non-Condensing)
	285	** Operating: 10 ~~ 95% (Non-Condensing)
	286	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	287	* LoRa Rx current: <9 mA
	288
87.3	289	== 3.4 Pin Mapping & LED ==
7.1	290
	291
87.3	292
	293	== 3.5 Example: Send & Get Messages via LoRaWAN in PC ==
	294
	295
78.2	296	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
58.1	297
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87.3	299	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN adapter to PC
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78.2	302	[[image:image-20220602171217-1.png\|\|height="538" width="800"]]
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87.3	304
58.1	305	Open the serial port tool
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	307	[[image:image-20220602161617-8.png]]
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78.2	309	[[image:image-20220602161718-9.png\|\|height="457" width="800"]]
58.1	310
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87.3	313	(% style="color:blue" %)2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
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78.2	315	The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
58.1	316
87.3	317
78.2	318	[[image:image-20220602161935-10.png\|\|height="498" width="800"]]
58.1	319
78.2	320
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87.3	322	(% style="color:blue" %)3. See Uplink Command
78.2	323
87.3	324	Command format: (% style="color:#4472c4" %) AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
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58.1	326	example: AT+SENDB=01,02,8,05820802581ea0a5
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78.2	328	[[image:image-20220602162157-11.png\|\|height="497" width="800"]]
58.1	329
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87.3	332	(% style="color:blue" %)4. Check to see if TTN received the message
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78.2	334	[[image:image-20220602162331-12.png\|\|height="420" width="800"]]
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87.3	338	== 3.6 Example: Send PC's CPU/RAM usage to TTN via python ==
81.1	339
87.3	340
87.1	341	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	344	(% style="color:red" %)Preconditions:
81.1	345
87.3	346	(% style="color:red" %)1. LA66 USB LoRaWAN Adapter works fine
81.1	347
87.3	348	(% style="color:red" %)2. LA66 USB LoRaWAN Adapter is registered with TTN
81.1	349
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87.3	352	(% style="color:blue" %)Steps for usage:
	353
	354	(% style="color:blue" %)1.(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	355
	356	(% style="color:blue" %)2.(%%) Run the python script in PC and see the TTN
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81.1	358	[[image:image-20220602115852-3.png\|\|height="450" width="1187"]]
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87.4	362	== 3.7 Example: Send & Get Messages via LoRaWAN in RPi ==
11.1	363
87.4	364
79.1	365	Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
12.1	366
79.1	367
87.5	368	(% style="color:blue" %)1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
87.4	369
78.2	370	[[image:image-20220602171233-2.png\|\|height="538" width="800"]]
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52.1	372
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87.4	374	(% style="color:blue" %)2. Install Minicom in RPi.
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79.1	376	(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
52.1	377
87.4	378	(% style="background-color:yellow" %)apt update
52.1	379
87.4	380	(% style="background-color:yellow" %)apt install minicom
52.1	381
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79.1	383	Use minicom to connect to the RPI's terminal
52.1	384
79.1	385	[[image:image-20220602153146-3.png\|\|height="439" width="500"]]
52.1	386
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87.4	388
87.5	389	(% style="color:blue" %)3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.(%%)
	390	(% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
8.1	391
79.1	392	[[image:image-20220602154928-5.png\|\|height="436" width="500"]]
46.1	393
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87.4	396	(% style="color:blue" %)4. Send Uplink message
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87.5	398	Format: (% style="color:#4472c4" %)AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
87.4	399
79.1	400	example: AT+SENDB=01,02,8,05820802581ea0a5
46.1	401
87.4	402
79.1	403	[[image:image-20220602160339-6.png\|\|height="517" width="600"]]
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87.4	405
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79.1	407	Check to see if TTN received the message
	408
	409	[[image:image-20220602160627-7.png\|\|height="369" width="800"]]
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87.4	413	== 3.8 Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
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13.1	415
63.1	416
87.4	417	== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
73.1	418
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87.4	422	= 4. Order Info =
73.1	423
87.4	424
87.5	425	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	426
	427
87.5	428	(% style="color:blue" %)XXX(%%): The default frequency band
86.1	429
87.5	430	* (% style="color:red" %)AS923(%%): LoRaWAN AS923 band
	431	* (% style="color:red" %)AU915(%%): LoRaWAN AU915 band
	432	* (% style="color:red" %)EU433(%%): LoRaWAN EU433 band
	433	* (% style="color:red" %)EU868(%%): LoRaWAN EU868 band
	434	* (% style="color:red" %)KR920(%%): LoRaWAN KR920 band
	435	* (% style="color:red" %)US915(%%): LoRaWAN US915 band
	436	* (% style="color:red" %)IN865(%%): LoRaWAN IN865 band
	437	* (% style="color:red" %)CN470(%%): LoRaWAN CN470 band
	438	* (% style="color:red" %)PP(%%): Peer to Peer LoRa Protocol
73.1	439
78.1	440
87.4	441
	442
	443	= 5. Reference =
	444
78.1	445	* 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	447

Wiki source code of LA66 LoRaWAN Module

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