Wiki source code of LA66 LoRaWAN Module

Version 68.1 by Edwin Chen on 2022/07/02 23:42

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1.1	1	{{box cssClass="floatinginfobox" title="Contents"}}
	2	{{toc/}}
	3	{{/box}}
	4
6.1	5	= LA66 LoRaWAN Module =
1.1	6
6.1	7	== What is LA66 LoRaWAN Module ==
	8
65.1	9	(% 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	10
65.1	11	(% 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	12
65.1	13	Each LA66 module includes a (% style="color:blue" %)world-unique OTAA key(%%) for LoRaWAN registration.
1.1	14
65.1	15	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	16
65.1	17	LA66 is equipped with (% style="color:blue" %)TCXO crystal(%%) which ensures the module can achieve stable performance in extreme temperatures.
1.1	18
67.1	19
65.1	20	== Features ==
64.1	21
68.1	22	* Support LoRaWAN v1.0.4 protocol
	23	* Support peer-to-peer protocol
	24	* TCXO crystal to ensure RF performance on low temperature
	25	* SMD Antenna pad and i-pex antenna connector
	26	* Available in different frequency LoRaWAN frequency bands.
	27	* World-wide unique OTAA keys.
64.1	28
67.1	29
68.1	30
	31
6.1	32	== Specification ==
1.1	33
68.1	34	* CPU: 32-bit 48 MHz
	35	* Flash: 256KB
	36	* RAM: 64KB
66.1	37	* Input Power Range: 1.8v ~~ 3.7v
	38	* Power Consumption: < 4uA.
	39	* Frequency Range: 150 MHz ~~ 960 MHz
	40	* Maximum Power +22 dBm constant RF output
	41	* High sensitivity: -148 dBm
	42	* Temperature:
	43	** Storage: -55 ~~ +125℃
	44	** Operating: -40 ~~ +85℃
	45	* Humidity:
	46	** Storage: 5 ~~ 95% (Non-Condensing)
	47	** Operating: 10 ~~ 95% (Non-Condensing)
	48	* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	49	* LoRa Rx current: <9 mA
	50	* I/O Voltage: 3.3v
1.1	51
66.1	52	== AT Command ==
1.1	53
66.1	54	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	55
3.1	56
66.1	57	== Dimension ==
3.1	58
66.1	59	[[image:image-20220517072526-1.png]]
3.1	60
	61
6.1	62	== Pin Mapping ==
5.1	63
10.2	64	[[image:image-20220523101537-1.png]]
5.1	65
6.1	66	== Land Pattern ==
5.1	67
	68	[[image:image-20220517072821-2.png]]
	69
	70
6.1	71	== Part Number ==
5.1	72
	73	Part Number: LA66-XXX
	74
	75	XX: The default frequency band
	76
	77	* AS923: LoRaWAN AS923 band
	78	* AU915: LoRaWAN AU915 band
	79	* EU433: LoRaWAN EU433 band
	80	* EU868: LoRaWAN EU868 band
	81	* KR920: LoRaWAN KR920 band
	82	* US915: LoRaWAN US915 band
	83	* IN865: LoRaWAN IN865 band
	84	* CN470: LoRaWAN CN470 band
68.1	85	* PP: Peer to Peer LoRa Protocol
6.1	86
68.1	87
6.1	88	= LA66 LoRaWAN Shield =
	89
	90	LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
	91
11.1	92	== Pin Mapping & LED ==
6.1	93
11.1	94	== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
	95
	96	== Example: Join TTN network and send an uplink message, get downlink message. ==
	97
	98	== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
	99
13.1	100	== Upgrade Firmware of LA66 LoRaWAN Shield ==
11.1	101
20.1	102	=== what needs to be used ===
11.1	103
20.1	104	1.LA66 LoRaWAN Shield that needs to be upgraded
13.1	105
20.1	106	2.Arduino
	107
	108	3.USB TO TTL
	109
	110	[[image:image-20220602100052-2.png]]
	111
	112	=== Wiring Schematic ===
	113
	114	[[image:image-20220602101311-3.png]]
	115
	116	LA66 LoRaWAN Shield >>>>>>>>>>>>USB TTL
	117
	118	GND >>>>>>>>>>>>GND
	119
	120	TXD >>>>>>>>>>>>TXD
	121
	122	RXD >>>>>>>>>>>>RXD
	123
	124	JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
	125
	126	Connect to the PC after connecting the wires
	127
	128	[[image:image-20220602102240-4.png]]
	129
	130	=== Upgrade steps ===
	131
32.1	132	==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
20.1	133
32.1	134	[[image:image-20220602102824-5.png]]
	135
	136	==== Press the RST switch on the LA66 LoRaWAN Shield once ====
	137
	138	[[image:image-20220602104701-12.png]]
	139
	140	==== Open the upgrade application software ====
	141
39.1	142	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/]]
	143
32.1	144	[[image:image-20220602103227-6.png]]
	145
	146	[[image:image-20220602103357-7.png]]
	147
	148	===== Select the COM port corresponding to USB TTL =====
	149
	150	[[image:image-20220602103844-8.png]]
	151
	152	===== Select the bin file to burn =====
	153
	154	[[image:image-20220602104144-9.png]]
	155
	156	[[image:image-20220602104251-10.png]]
	157
	158	[[image:image-20220602104402-11.png]]
	159
	160	===== Click to start the download =====
	161
	162	[[image:image-20220602104923-13.png]]
	163
	164	===== The following figure appears to prove that the burning is in progress =====
	165
	166	[[image:image-20220602104948-14.png]]
	167
	168	===== The following picture appears to prove that the burning is successful =====
	169
	170	[[image:image-20220602105251-15.png]]
	171
6.1	172	= LA66 USB LoRaWAN Adapter =
	173
7.1	174	LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.
	175
52.1	176	Before use, please make sure that the computer has installed the CP2102 driver
	177
14.1	178	== Pin Mapping & LED ==
7.1	179
11.1	180	== Example Send & Get Messages via LoRaWAN in PC ==
7.1	181
58.1	182	Connect the LA66 LoRa Shield to the PC
	183
61.1	184	[[image:image-20220602171217-1.png\|\|height="615" width="915"]]
58.1	185
	186	Open the serial port tool
	187
	188	[[image:image-20220602161617-8.png]]
	189
	190	[[image:image-20220602161718-9.png\|\|height="529" width="927"]]
	191
	192	Press the reset switch RST on the LA66 LoRa Shield.
	193
	194	The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
	195
	196	[[image:image-20220602161935-10.png]]
	197
	198	send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	199
	200	example: AT+SENDB=01,02,8,05820802581ea0a5
	201
	202	[[image:image-20220602162157-11.png]]
	203
	204	Check to see if TTN received the message
	205
	206	[[image:image-20220602162331-12.png\|\|height="547" width="1044"]]
	207
11.1	208	== Example Send & Get Messages via LoRaWAN in RPi ==
	209
52.1	210	Connect the LA66 LoRa Shield to the RPI
12.1	211
61.1	212	[[image:image-20220602171233-2.png\|\|height="592" width="881"]]
43.1	213
52.1	214	Log in to the RPI's terminal and connect to the serial port
	215
	216	[[image:image-20220602153146-3.png]]
	217
	218	Press the reset switch RST on the LA66 LoRa Shield.
	219	The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
	220
	221	[[image:image-20220602154928-5.png]]
	222
	223	send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	224
	225	example: AT+SENDB=01,02,8,05820802581ea0a5
	226
	227	[[image:image-20220602160339-6.png]]
	228
	229	Check to see if TTN received the message
	230
	231	[[image:image-20220602160627-7.png\|\|height="468" width="1013"]]
	232
8.1	233	=== Install Minicom ===
	234
46.1	235	Enter the following command in the RPI terminal
	236
	237	apt update
	238
	239	[[image:image-20220602143155-1.png]]
	240
	241	apt install minicom
	242
	243	[[image:image-20220602143744-2.png]]
	244
38.1	245	=== Send PC's CPU/RAM usage to TTN via script. ===
11.1	246
38.1	247	==== Take python as an example： ====
11.1	248
38.1	249	===== Preconditions: =====
	250
62.1	251	1.LA66 USB LoRaWAN Adapter works fine
38.1	252
62.1	253	2.LA66 USB LoRaWAN Adapter is registered with TTN
38.1	254
	255	===== Steps for usage =====
	256
62.1	257	1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
38.1	258
	259	2.Run the script and see the TTN
	260
	261	[[image:image-20220602115852-3.png]]
	262
	263
	264
11.1	265	== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
	266
13.1	267
	268	== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
63.1	269
	270

Wiki source code of LA66 LoRaWAN Module

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