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Wiki source code of LA66 LoRaWAN Module

Version 87.13 by Xiaoling on 2022/07/13 10:05
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1
2
3 **Table of Contents:**
4
5 {{toc/}}
6
7
8
9 = 1.  LA66 LoRaWAN Module =
10
11
12 == 1.1  What is LA66 LoRaWAN Module ==
13
14
15 (% 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.
16
17 (% 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.
18
19 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
20
21 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.
22
23 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
24
25
26 == 1.2  Features ==
27
28 * Support LoRaWAN v1.0.4 protocol
29 * Support peer-to-peer protocol
30 * TCXO crystal to ensure RF performance on low temperature
31 * SMD Antenna pad and i-pex antenna connector
32 * Available in different frequency LoRaWAN frequency bands.
33 * World-wide unique OTAA keys.
34 * AT Command via UART-TTL interface
35 * Firmware upgradable via UART interface
36 * Ultra-long RF range
37
38
39 == 1.3  Specification ==
40
41 * CPU: 32-bit 48 MHz
42 * Flash: 256KB
43 * RAM: 64KB
44 * Input Power Range: 1.8v ~~ 3.7v
45 * Power Consumption: < 4uA.
46 * Frequency Range: 150 MHz ~~ 960 MHz
47 * Maximum Power +22 dBm constant RF output
48 * High sensitivity: -148 dBm
49 * Temperature:
50 ** Storage: -55 ~~ +125℃
51 ** Operating: -40 ~~ +85℃
52 * Humidity:
53 ** Storage: 5 ~~ 95% (Non-Condensing)
54 ** Operating: 10 ~~ 95% (Non-Condensing)
55 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
56 * LoRa Rx current: <9 mA
57 * I/O Voltage: 3.3v
58
59
60 == 1.4  AT Command ==
61
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.
63
64
65 == 1.5  Dimension ==
66
67 [[image:image-20220517072526-1.png]]
68
69
70
71 == 1.6  Pin Mapping ==
72
73
74 [[image:image-20220523101537-1.png]]
75
76
77
78 == 1.7  Land Pattern ==
79
80 [[image:image-20220517072821-2.png]]
81
82
83
84 = 2.  LA66 LoRaWAN Shield =
85
86
87 == 2.1  Overview ==
88
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
92 == 2.2  Features ==
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
105
106 == 2.3  Specification ==
107
108 * CPU: 32-bit 48 MHz
109 * Flash: 256KB
110 * RAM: 64KB
111 * Input Power Range: 1.8v ~~ 3.7v
112 * Power Consumption: < 4uA.
113 * Frequency Range: 150 MHz ~~ 960 MHz
114 * Maximum Power +22 dBm constant RF output
115 * High sensitivity: -148 dBm
116 * Temperature:
117 ** Storage: -55 ~~ +125℃
118 ** Operating: -40 ~~ +85℃
119 * Humidity:
120 ** Storage: 5 ~~ 95% (Non-Condensing)
121 ** Operating: 10 ~~ 95% (Non-Condensing)
122 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
123 * LoRa Rx current: <9 mA
124 * I/O Voltage: 3.3v
125
126
127 == 2.4  Pin Mapping & LED ==
128
129
130
131 == 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
132
133
134
135 == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
136
137
138
139 == 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
140
141
142
143 == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
144
145
146 === 2.8.1  Items needed for update ===
147
148 1. LA66 LoRaWAN Shield
149 1. Arduino
150 1. USB TO TTL Adapter
151
152 [[image:image-20220602100052-2.png||height="385" width="600"]]
153
154
155 === 2.8.2  Connection ===
156
157
158 [[image:image-20220602101311-3.png||height="276" width="600"]]
159
160
161 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
162
163 (% style="background-color:yellow" %)**GND  <-> GND
164 TXD  <->  TXD
165 RXD  <->  RXD**
166
167
168 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
169
170 Connect USB TTL Adapter to PC after connecting the wires
171
172
173 [[image:image-20220602102240-4.png||height="304" width="600"]]
174
175
176 === 2.8.3  Upgrade steps ===
177
178
179 ==== 1.  Switch SW1 to put in ISP position ====
180
181
182 [[image:image-20220602102824-5.png||height="306" width="600"]]
183
184
185
186 ==== 2.  Press the RST switch once ====
187
188
189 [[image:image-20220602104701-12.png||height="285" width="600"]]
190
191
192
193 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
194
195
196 (% 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/]]**
197
198
199 [[image:image-20220602103227-6.png]]
200
201
202 [[image:image-20220602103357-7.png]]
203
204
205
206 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
207 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
208
209
210 [[image:image-20220602103844-8.png]]
211
212
213
214 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
215 (% style="color:blue" %)**3. Select the bin file to burn**
216
217
218 [[image:image-20220602104144-9.png]]
219
220
221 [[image:image-20220602104251-10.png]]
222
223
224 [[image:image-20220602104402-11.png]]
225
226
227
228 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
229 (% style="color:blue" %)**4. Click to start the download**
230
231 [[image:image-20220602104923-13.png]]
232
233
234
235 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
236 (% style="color:blue" %)**5. Check update process**
237
238
239 [[image:image-20220602104948-14.png]]
240
241
242
243 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
244 (% style="color:blue" %)**The following picture shows that the burning is successful**
245
246 [[image:image-20220602105251-15.png]]
247
248
249
250 = 3.  LA66 USB LoRaWAN Adapter =
251
252
253 == 3.1  Overview ==
254
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.
256
257
258 == 3.2  Features ==
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
271
272 == 3.3  Specification ==
273
274 * CPU: 32-bit 48 MHz
275 * Flash: 256KB
276 * RAM: 64KB
277 * Input Power Range: 5v
278 * Frequency Range: 150 MHz ~~ 960 MHz
279 * Maximum Power +22 dBm constant RF output
280 * High sensitivity: -148 dBm
281 * Temperature:
282 ** Storage: -55 ~~ +125℃
283 ** Operating: -40 ~~ +85℃
284 * Humidity:
285 ** Storage: 5 ~~ 95% (Non-Condensing)
286 ** Operating: 10 ~~ 95% (Non-Condensing)
287 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
288 * LoRa Rx current: <9 mA
289
290
291 == 3.4  Pin Mapping & LED ==
292
293
294
295 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
296
297
298 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
299
300
301 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
302
303
304 [[image:image-20220602171217-1.png||height="538" width="800"]]
305
306
307 Open the serial port tool
308
309 [[image:image-20220602161617-8.png]]
310
311 [[image:image-20220602161718-9.png||height="457" width="800"]]
312
313
314
315 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
316
317 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
318
319
320 [[image:image-20220602161935-10.png||height="498" width="800"]]
321
322
323
324 (% style="color:blue" %)**3. See Uplink Command**
325
326 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
327
328 example: AT+SENDB=01,02,8,05820802581ea0a5
329
330 [[image:image-20220602162157-11.png||height="497" width="800"]]
331
332
333
334 (% style="color:blue" %)**4. Check to see if TTN received the message**
335
336 [[image:image-20220602162331-12.png||height="420" width="800"]]
337
338
339
340 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
341
342
343 **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]]
344
345
346 (% style="color:red" %)**Preconditions:**
347
348 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
349
350 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
351
352
353
354 (% style="color:blue" %)**Steps for usage:**
355
356 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
357
358 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
359
360 [[image:image-20220602115852-3.png||height="450" width="1187"]]
361
362
363
364 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
365
366
367 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
368
369
370 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
371
372 [[image:image-20220602171233-2.png||height="538" width="800"]]
373
374
375
376 (% style="color:blue" %)**2. Install Minicom in RPi.**
377
378 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
379
380 (% style="background-color:yellow" %)**apt update**
381
382 (% style="background-color:yellow" %)**apt install minicom**
383
384
385 Use minicom to connect to the RPI's terminal
386
387 [[image:image-20220602153146-3.png||height="439" width="500"]]
388
389
390
391 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
392
393 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
394
395
396 [[image:image-20220602154928-5.png||height="436" width="500"]]
397
398
399
400 (% style="color:blue" %)**4. Send Uplink message**
401
402 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
403
404 example: AT+SENDB=01,02,8,05820802581ea0a5
405
406
407 [[image:image-20220602160339-6.png||height="517" width="600"]]
408
409
410
411 Check to see if TTN received the message
412
413 [[image:image-20220602160627-7.png||height="369" width="800"]]
414
415
416
417 == 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
418
419
420
421 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
422
423
424
425
426 = 4.  Order Info =
427
428
429 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
430
431
432 (% style="color:blue" %)**XXX**(%%): The default frequency band
433
434 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
435 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
436 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
437 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
438 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
439 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
440 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
441 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
442 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
443
444
445
446 = 5.  Reference =
447
448 * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
449
450