Wiki source code of LA66 LoRaWAN Module

Version 53.1 by Herong Lu on 2022/06/02 16:16

version	line-number	content
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
1.1	9	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 LoRa 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 program, create and connect your things everywhere.
	10
	11	LA66 is a ready-to-use module which includes the LoRaWAN v1.0.4 protocol. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
	12
	13	Each LA66 module includes a world unique OTAA key for LoRaWAN registration.
	14
	15
	16
6.1	17	== Specification ==
1.1	18
3.1	19	[[image:image-20220517072526-1.png]]
1.1	20
3.1	21	Input Power Range: 1.8v ~~ 3.7v
1.1	22
3.1	23	Power Consumption: < 4uA.
1.1	24
3.1	25	Frequency Range: 150 MHz ~~ 960 MHz
1.1	26
3.1	27	Maximum Power +22 dBm constant RF output
	28
	29	High sensitivity: -148 dBm
	30
	31	Temperature:
	32
	33	* Storage: -55 ~~ +125℃
	34	* Operating: -40 ~~ +85℃
	35
	36	Humidity:
	37
	38	* Storage: 5 ~~ 95% (Non-Condensing)
	39	* Operating: 10 ~~ 95% (Non-Condensing)
	40
	41	LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	42
	43	LoRa Rx current: <9 mA
	44
	45	I/O Voltage: 3.3v
5.1	46
	47
6.1	48	== AT Command ==
5.1	49
	50	AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
	51
	52
6.1	53	== Pin Mapping ==
5.1	54
10.2	55	[[image:image-20220523101537-1.png]]
5.1	56
6.1	57	== Land Pattern ==
5.1	58
	59	[[image:image-20220517072821-2.png]]
	60
	61
6.1	62	== Part Number ==
5.1	63
	64	Part Number: LA66-XXX
	65
	66	XX: The default frequency band
	67
	68	* AS923: LoRaWAN AS923 band
	69	* AU915: LoRaWAN AU915 band
	70	* EU433: LoRaWAN EU433 band
	71	* EU868: LoRaWAN EU868 band
	72	* KR920: LoRaWAN KR920 band
	73	* US915: LoRaWAN US915 band
	74	* IN865: LoRaWAN IN865 band
	75	* CN470: LoRaWAN CN470 band
6.1	76
	77	= LA66 LoRaWAN Shield =
	78
	79	LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
	80
11.1	81	== Pin Mapping & LED ==
6.1	82
11.1	83	== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
	84
	85	== Example: Join TTN network and send an uplink message, get downlink message. ==
	86
	87	== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
	88
13.1	89	== Upgrade Firmware of LA66 LoRaWAN Shield ==
11.1	90
20.1	91	=== what needs to be used ===
11.1	92
20.1	93	1.LA66 LoRaWAN Shield that needs to be upgraded
13.1	94
20.1	95	2.Arduino
	96
	97	3.USB TO TTL
	98
	99	[[image:image-20220602100052-2.png]]
	100
	101	=== Wiring Schematic ===
	102
	103	[[image:image-20220602101311-3.png]]
	104
	105	LA66 LoRaWAN Shield >>>>>>>>>>>>USB TTL
	106
	107	GND >>>>>>>>>>>>GND
	108
	109	TXD >>>>>>>>>>>>TXD
	110
	111	RXD >>>>>>>>>>>>RXD
	112
	113	JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
	114
	115	Connect to the PC after connecting the wires
	116
	117	[[image:image-20220602102240-4.png]]
	118
	119	=== Upgrade steps ===
	120
32.1	121	==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
20.1	122
32.1	123	[[image:image-20220602102824-5.png]]
	124
	125	==== Press the RST switch on the LA66 LoRaWAN Shield once ====
	126
	127	[[image:image-20220602104701-12.png]]
	128
	129	==== Open the upgrade application software ====
	130
39.1	131	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/]]
	132
32.1	133	[[image:image-20220602103227-6.png]]
	134
	135	[[image:image-20220602103357-7.png]]
	136
	137	===== Select the COM port corresponding to USB TTL =====
	138
	139	[[image:image-20220602103844-8.png]]
	140
	141	===== Select the bin file to burn =====
	142
	143	[[image:image-20220602104144-9.png]]
	144
	145	[[image:image-20220602104251-10.png]]
	146
	147	[[image:image-20220602104402-11.png]]
	148
	149	===== Click to start the download =====
	150
	151	[[image:image-20220602104923-13.png]]
	152
	153	===== The following figure appears to prove that the burning is in progress =====
	154
	155	[[image:image-20220602104948-14.png]]
	156
	157	===== The following picture appears to prove that the burning is successful =====
	158
	159	[[image:image-20220602105251-15.png]]
	160
6.1	161	= LA66 USB LoRaWAN Adapter =
	162
7.1	163	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.
	164
52.1	165	Before use, please make sure that the computer has installed the CP2102 driver
	166
14.1	167	== Pin Mapping & LED ==
7.1	168
11.1	169	== Example Send & Get Messages via LoRaWAN in PC ==
7.1	170
11.1	171	== Example Send & Get Messages via LoRaWAN in RPi ==
	172
52.1	173	Connect the LA66 LoRa Shield to the RPI
12.1	174
52.1	175	[[image:image-20220602153333-4.png]]
43.1	176
52.1	177	Log in to the RPI's terminal and connect to the serial port
	178
	179	[[image:image-20220602153146-3.png]]
	180
	181	Press the reset switch RST on the LA66 LoRa Shield.
	182	The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
	183
	184	[[image:image-20220602154928-5.png]]
	185
	186	send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	187
	188	example: AT+SENDB=01,02,8,05820802581ea0a5
	189
	190	[[image:image-20220602160339-6.png]]
	191
	192	Check to see if TTN received the message
	193
	194	[[image:image-20220602160627-7.png\|\|height="468" width="1013"]]
	195
8.1	196	=== Install Minicom ===
	197
46.1	198	Enter the following command in the RPI terminal
	199
	200	apt update
	201
	202	[[image:image-20220602143155-1.png]]
	203
	204	apt install minicom
	205
	206	[[image:image-20220602143744-2.png]]
	207
11.1	208	=== Use AT Command to send an uplink message. ===
9.1	209
38.1	210	=== Send PC's CPU/RAM usage to TTN via script. ===
11.1	211
38.1	212	==== Take python as an example： ====
11.1	213
38.1	214	===== Preconditions: =====
	215
	216	1.LA66 LoRa Shield works fine
	217
	218	2.LA66 LoRa Shield is registered with TTN
	219
	220	===== Steps for usage =====
	221
	222	1.After connecting the line, connect it to the PC, turn SW1 to FLASH, and press the RST switch. As shown in the figure below
	223
	224	[[image:image-20220602114148-1.png]]
	225
	226	2.Run the script and see the TTN
	227
	228	[[image:image-20220602115852-3.png]]
	229
	230
	231
11.1	232	== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
	233
13.1	234
	235	== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==

Wiki source code of LA66 LoRaWAN Module

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