Wiki source code of LA66 LoRaWAN Module

Version 67.1 by Edwin Chen on 2022/07/02 23:33
Show last authors
1 {{box cssClass="floatinginfobox" title="**Contents**"}}
2 {{toc/}}
3 {{/box}}
4
5 = LA66 LoRaWAN Module =
6
7 == What is LA66 LoRaWAN Module ==
8
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.
10
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.
12
13 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
14
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.
16
17 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
18
19
20 == Features ==
21
22
23
24 == Specification ==
25
26 * Input Power Range: 1.8v ~~ 3.7v
27 * Power Consumption: < 4uA.
28 * Frequency Range: 150 MHz ~~ 960 MHz
29 * Maximum Power +22 dBm constant RF output
30 * High sensitivity: -148 dBm
31 * Temperature:
32 ** Storage: -55 ~~ +125℃
33 ** Operating: -40 ~~ +85℃
34 * Humidity:
35 ** Storage: 5 ~~ 95% (Non-Condensing)
36 ** Operating: 10 ~~ 95% (Non-Condensing)
37 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
38 * LoRa Rx current: <9 mA
39 * I/O Voltage: 3.3v
40
41 == AT Command ==
42
43 AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
44
45
46 == Dimension ==
47
48 [[image:image-20220517072526-1.png]]
49
50
51 == Pin Mapping ==
52
53 [[image:image-20220523101537-1.png]]
54
55 == Land Pattern ==
56
57 [[image:image-20220517072821-2.png]]
58
59
60 == Part Number ==
61
62 Part Number: **LA66-XXX**
63
64 **XX**: The default frequency band
65
66 * **AS923**: LoRaWAN AS923 band
67 * **AU915**: LoRaWAN AU915 band
68 * **EU433**: LoRaWAN EU433 band
69 * **EU868**: LoRaWAN EU868 band
70 * **KR920**: LoRaWAN KR920 band
71 * **US915**: LoRaWAN US915 band
72 * **IN865**: LoRaWAN IN865 band
73 * **CN470**: LoRaWAN CN470 band
74
75 = LA66 LoRaWAN Shield =
76
77 LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
78
79 == Pin Mapping & LED ==
80
81 == Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
82
83 == Example: Join TTN network and send an uplink message, get downlink message. ==
84
85 == Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
86
87 == Upgrade Firmware of LA66 LoRaWAN Shield ==
88
89 === what needs to be used ===
90
91 1.LA66 LoRaWAN Shield that needs to be upgraded
92
93 2.Arduino
94
95 3.USB TO TTL
96
97 [[image:image-20220602100052-2.png]]
98
99 === Wiring Schematic ===
100
101 [[image:image-20220602101311-3.png]]
102
103 LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
104
105 GND  >>>>>>>>>>>>GND
106
107 TXD  >>>>>>>>>>>>TXD
108
109 RXD  >>>>>>>>>>>>RXD
110
111 JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
112
113 Connect to the PC after connecting the wires
114
115 [[image:image-20220602102240-4.png]]
116
117 === Upgrade steps ===
118
119 ==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
120
121 [[image:image-20220602102824-5.png]]
122
123 ==== Press the RST switch on the LA66 LoRaWAN Shield once ====
124
125 [[image:image-20220602104701-12.png]]
126
127 ==== Open the upgrade application software ====
128
129 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/]]
130
131 [[image:image-20220602103227-6.png]]
132
133 [[image:image-20220602103357-7.png]]
134
135 ===== Select the COM port corresponding to USB TTL =====
136
137 [[image:image-20220602103844-8.png]]
138
139 ===== Select the bin file to burn =====
140
141 [[image:image-20220602104144-9.png]]
142
143 [[image:image-20220602104251-10.png]]
144
145 [[image:image-20220602104402-11.png]]
146
147 ===== Click to start the download =====
148
149 [[image:image-20220602104923-13.png]]
150
151 ===== The following figure appears to prove that the burning is in progress =====
152
153 [[image:image-20220602104948-14.png]]
154
155 ===== The following picture appears to prove that the burning is successful =====
156
157 [[image:image-20220602105251-15.png]]
158
159 = LA66 USB LoRaWAN Adapter =
160
161 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.
162
163 Before use, please make sure that the computer has installed the CP2102 driver
164
165 == Pin Mapping & LED ==
166
167 == Example Send & Get Messages via LoRaWAN in PC ==
168
169 Connect the LA66 LoRa Shield to the PC
170
171 [[image:image-20220602171217-1.png||height="615" width="915"]]
172
173 Open the serial port tool
174
175 [[image:image-20220602161617-8.png]]
176
177 [[image:image-20220602161718-9.png||height="529" width="927"]]
178
179 Press the reset switch RST on the LA66 LoRa Shield.
180
181 The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
182
183 [[image:image-20220602161935-10.png]]
184
185 send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
186
187 example: AT+SENDB=01,02,8,05820802581ea0a5
188
189 [[image:image-20220602162157-11.png]]
190
191 Check to see if TTN received the message
192
193 [[image:image-20220602162331-12.png||height="547" width="1044"]]
194
195 == Example Send & Get Messages via LoRaWAN in RPi ==
196
197 Connect the LA66 LoRa Shield to the RPI
198
199 [[image:image-20220602171233-2.png||height="592" width="881"]]
200
201 Log in to the RPI's terminal and connect to the serial port
202
203 [[image:image-20220602153146-3.png]]
204
205 Press the reset switch RST on the LA66 LoRa Shield.
206 The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
207
208 [[image:image-20220602154928-5.png]]
209
210 send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
211
212 example: AT+SENDB=01,02,8,05820802581ea0a5
213
214 [[image:image-20220602160339-6.png]]
215
216 Check to see if TTN received the message
217
218 [[image:image-20220602160627-7.png||height="468" width="1013"]]
219
220 === Install Minicom ===
221
222 Enter the following command in the RPI terminal
223
224 apt update
225
226 [[image:image-20220602143155-1.png]]
227
228 apt install minicom
229
230 [[image:image-20220602143744-2.png]]
231
232 === Send PC's CPU/RAM usage to TTN via script. ===
233
234 ==== Take python as an example： ====
235
236 ===== Preconditions: =====
237
238 1.LA66 USB LoRaWAN Adapter works fine
239
240 2.LA66 USB LoRaWAN Adapter  is registered with TTN
241
242 ===== Steps for usage =====
243
244 1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
245
246 2.Run the script and see the TTN
247
248 [[image:image-20220602115852-3.png]]
249
250
251
252 == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
253
254
255 == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
256
257

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0