Wiki source code of LA66 LoRaWAN Module

Version 74.1 by Edwin Chen on 2022/07/03 00:16
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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 * 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.
28 * AT Command via UART-TTL interface
29 * Firmware upgradable via UART interface
30 * Ultra-long RF range
31
32 == Specification ==
33
34 * CPU: 32-bit 48 MHz
35 * Flash: 256KB
36 * RAM: 64KB
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
51
52 == AT Command ==
53
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.
55
56
57 == Dimension ==
58
59 [[image:image-20220517072526-1.png]]
60
61
62 == Pin Mapping ==
63
64 [[image:image-20220523101537-1.png]]
65
66 == Land Pattern ==
67
68 [[image:image-20220517072821-2.png]]
69
70
71 == Order Info ==
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
85 * **PP**: Peer to Peer LoRa Protocol
86
87 = LA66 LoRaWAN Shield =
88
89 == Overview ==
90
91 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.
92
93
94 == Features ==
95
96 * Arduino Shield base on LA66 LoRaWAN module
97 * Support LoRaWAN v1.0.4 protocol
98 * Support peer-to-peer protocol
99 * TCXO crystal to ensure RF performance on low temperature
100 * SMA connector
101 * Available in different frequency LoRaWAN frequency bands.
102 * World-wide unique OTAA keys.
103 * AT Command via UART-TTL interface
104 * Firmware upgradable via UART interface
105 * Ultra-long RF range
106
107 == Specification ==
108
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
127 == Pin Mapping & LED ==
128
129 == Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
130
131 == Example: Join TTN network and send an uplink message, get downlink message. ==
132
133 == Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
134
135 == Upgrade Firmware of LA66 LoRaWAN Shield ==
136
137 === Items needed for update ===
138
139 1. LA66 LoRaWAN Shield
140 1. Arduino
141 1. USB TO TTL Adapter
142
143 [[image:image-20220602100052-2.png||height="341" width="531"]]
144
145
146 === Connection ===
147
148 [[image:image-20220602101311-3.png||height="350" width="760"]]
149
150
151 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  <-----> (% style="color:blue" %)**USB TTL(%%)
152 GND  <-----> GND
153 TXD  <-----> TXD
154 RXD  <-----> RXD
155
156 JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
157
158 Connect to the PC after connecting the wires
159
160
161
162 [[image:image-20220602102240-4.png]]
163
164 === Upgrade steps ===
165
166 ==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
167
168 [[image:image-20220602102824-5.png]]
169
170 ==== Press the RST switch on the LA66 LoRaWAN Shield once ====
171
172 [[image:image-20220602104701-12.png]]
173
174 ==== Open the upgrade application software ====
175
176 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/]]
177
178 [[image:image-20220602103227-6.png]]
179
180 [[image:image-20220602103357-7.png]]
181
182 ===== Select the COM port corresponding to USB TTL =====
183
184 [[image:image-20220602103844-8.png]]
185
186 ===== Select the bin file to burn =====
187
188 [[image:image-20220602104144-9.png]]
189
190 [[image:image-20220602104251-10.png]]
191
192 [[image:image-20220602104402-11.png]]
193
194 ===== Click to start the download =====
195
196 [[image:image-20220602104923-13.png]]
197
198 ===== The following figure appears to prove that the burning is in progress =====
199
200 [[image:image-20220602104948-14.png]]
201
202 ===== The following picture appears to prove that the burning is successful =====
203
204 [[image:image-20220602105251-15.png]]
205
206
207 == Order Info ==
208
209 Part Number: **LA66-LoRaWAN-Shield-XXX**
210
211 **XX**: The default frequency band
212
213 * **AS923**: LoRaWAN AS923 band
214 * **AU915**: LoRaWAN AU915 band
215 * **EU433**: LoRaWAN EU433 band
216 * **EU868**: LoRaWAN EU868 band
217 * **KR920**: LoRaWAN KR920 band
218 * **US915**: LoRaWAN US915 band
219 * **IN865**: LoRaWAN IN865 band
220 * **CN470**: LoRaWAN CN470 band
221 * **PP**: Peer to Peer LoRa Protocol
222
223 == Package Info ==
224
225 * LA66 LoRaWAN Shield x 1
226 * RF Antenna x 1
227
228
229
230 = LA66 USB LoRaWAN Adapter =
231
232 == Overview ==
233
234 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.
235
236
237 == Features ==
238
239 * LoRaWAN USB adapter base on LA66 LoRaWAN module
240 * Ultra-long RF range
241 * Support LoRaWAN v1.0.4 protocol
242 * Support peer-to-peer protocol
243 * TCXO crystal to ensure RF performance on low temperature
244 * Spring RF antenna
245 * Available in different frequency LoRaWAN frequency bands.
246 * World-wide unique OTAA keys.
247 * AT Command via UART-TTL interface
248 * Firmware upgradable via UART interface
249
250
251 == Specification ==
252
253 * CPU: 32-bit 48 MHz
254 * Flash: 256KB
255 * RAM: 64KB
256 * Input Power Range: 5v
257 * Frequency Range: 150 MHz ~~ 960 MHz
258 * Maximum Power +22 dBm constant RF output
259 * High sensitivity: -148 dBm
260 * Temperature:
261 ** Storage: -55 ~~ +125℃
262 ** Operating: -40 ~~ +85℃
263 * Humidity:
264 ** Storage: 5 ~~ 95% (Non-Condensing)
265 ** Operating: 10 ~~ 95% (Non-Condensing)
266 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
267 * LoRa Rx current: <9 mA
268
269
270 == Pin Mapping & LED ==
271
272 == Example Send & Get Messages via LoRaWAN in PC ==
273
274 Connect the LA66 LoRa Shield to the PC
275
276 [[image:image-20220602171217-1.png||height="615" width="915"]]
277
278 Open the serial port tool
279
280 [[image:image-20220602161617-8.png]]
281
282 [[image:image-20220602161718-9.png||height="529" width="927"]]
283
284 Press the reset switch RST on the LA66 LoRa Shield.
285
286 The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
287
288 [[image:image-20220602161935-10.png]]
289
290 send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
291
292 example: AT+SENDB=01,02,8,05820802581ea0a5
293
294 [[image:image-20220602162157-11.png]]
295
296 Check to see if TTN received the message
297
298 [[image:image-20220602162331-12.png||height="547" width="1044"]]
299
300 == Example Send & Get Messages via LoRaWAN in RPi ==
301
302 Connect the LA66 LoRa Shield to the RPI
303
304 [[image:image-20220602171233-2.png||height="592" width="881"]]
305
306 Log in to the RPI's terminal and connect to the serial port
307
308 [[image:image-20220602153146-3.png]]
309
310 Press the reset switch RST on the LA66 LoRa Shield.
311 The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
312
313 [[image:image-20220602154928-5.png]]
314
315 send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
316
317 example: AT+SENDB=01,02,8,05820802581ea0a5
318
319 [[image:image-20220602160339-6.png]]
320
321 Check to see if TTN received the message
322
323 [[image:image-20220602160627-7.png||height="468" width="1013"]]
324
325 === Install Minicom ===
326
327 Enter the following command in the RPI terminal
328
329 apt update
330
331 [[image:image-20220602143155-1.png]]
332
333 apt install minicom
334
335 [[image:image-20220602143744-2.png]]
336
337 === Send PC's CPU/RAM usage to TTN via script. ===
338
339 ==== Take python as an example： ====
340
341 ===== Preconditions: =====
342
343 1.LA66 USB LoRaWAN Adapter works fine
344
345 2.LA66 USB LoRaWAN Adapter  is registered with TTN
346
347 ===== Steps for usage =====
348
349 1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
350
351 2.Run the script and see the TTN
352
353 [[image:image-20220602115852-3.png]]
354
355
356
357 == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
358
359
360 == Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
361
362
363
364 == Order Info ==
365
366 Part Number: **LA66-USB-LoRaWAN-Adapter-XXX**
367
368 **XX**: The default frequency band
369
370 * **AS923**: LoRaWAN AS923 band
371 * **AU915**: LoRaWAN AU915 band
372 * **EU433**: LoRaWAN EU433 band
373 * **EU868**: LoRaWAN EU868 band
374 * **KR920**: LoRaWAN KR920 band
375 * **US915**: LoRaWAN US915 band
376 * **IN865**: LoRaWAN IN865 band
377 * **CN470**: LoRaWAN CN470 band
378 * **PP**: Peer to Peer LoRa Protocol
379
380 == Package Info ==
381
382 * LA66 USB LoRaWAN Adapter x 1
383
384

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