Wiki source code of LA66 LoRaWAN Module

Version 131.1 by Herong Lu on 2022/07/23 17:41
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1 0
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 (((
16 (((
17 [[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 )))
19
20 (((
21
22 )))
23
24 (((
25 (% 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.
26 )))
27 )))
28
29 (((
30 (((
31 (% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 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.
32 )))
33 )))
34
35 (((
36 (((
37 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
38 )))
39
40 (((
41 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.
42 )))
43 )))
44
45 (((
46 (((
47 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 )))
49 )))
50
51
52
53 == 1.2  Features ==
54
55 * Support LoRaWAN v1.0.4 protocol
56 * Support peer-to-peer protocol
57 * TCXO crystal to ensure RF performance on low temperature
58 * SMD Antenna pad and i-pex antenna connector
59 * Available in different frequency LoRaWAN frequency bands.
60 * World-wide unique OTAA keys.
61 * AT Command via UART-TTL interface
62 * Firmware upgradable via UART interface
63 * Ultra-long RF range
64
65 == 1.3  Specification ==
66
67 * CPU: 32-bit 48 MHz
68 * Flash: 256KB
69 * RAM: 64KB
70 * Input Power Range: 1.8v ~~ 3.7v
71 * Power Consumption: < 4uA.
72 * Frequency Range: 150 MHz ~~ 960 MHz
73 * Maximum Power +22 dBm constant RF output
74 * High sensitivity: -148 dBm
75 * Temperature:
76 ** Storage: -55 ~~ +125℃
77 ** Operating: -40 ~~ +85℃
78 * Humidity:
79 ** Storage: 5 ~~ 95% (Non-Condensing)
80 ** Operating: 10 ~~ 95% (Non-Condensing)
81 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
82 * LoRa Rx current: <9 mA
83 * I/O Voltage: 3.3v
84
85 == 1.4  AT Command ==
86
87
88 AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
89
90
91
92 == 1.5  Dimension ==
93
94 [[image:image-20220718094750-3.png]]
95
96
97
98 == 1.6  Pin Mapping ==
99
100 [[image:image-20220720111850-1.png]]
101
102
103
104 == 1.7  Land Pattern ==
105
106 [[image:image-20220517072821-2.png]]
107
108
109
110 = 2.  LA66 LoRaWAN Shield =
111
112
113 == 2.1  Overview ==
114
115
116 (((
117 [[image:image-20220715000826-2.png||height="145" width="220"]]
118 )))
119
120 (((
121
122 )))
123
124 (((
125 (% style="color:blue" %)**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.
126 )))
127
128 (((
129 (((
130 (% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 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.
131 )))
132 )))
133
134 (((
135 (((
136 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
137 )))
138 )))
139
140 (((
141 (((
142 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.
143 )))
144 )))
145
146 (((
147 (((
148 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
149 )))
150 )))
151
152
153
154 == 2.2  Features ==
155
156 * Arduino Shield base on LA66 LoRaWAN module
157 * Support LoRaWAN v1.0.4 protocol
158 * Support peer-to-peer protocol
159 * TCXO crystal to ensure RF performance on low temperature
160 * SMA connector
161 * Available in different frequency LoRaWAN frequency bands.
162 * World-wide unique OTAA keys.
163 * AT Command via UART-TTL interface
164 * Firmware upgradable via UART interface
165 * Ultra-long RF range
166
167 == 2.3  Specification ==
168
169 * CPU: 32-bit 48 MHz
170 * Flash: 256KB
171 * RAM: 64KB
172 * Input Power Range: 1.8v ~~ 3.7v
173 * Power Consumption: < 4uA.
174 * Frequency Range: 150 MHz ~~ 960 MHz
175 * Maximum Power +22 dBm constant RF output
176 * High sensitivity: -148 dBm
177 * Temperature:
178 ** Storage: -55 ~~ +125℃
179 ** Operating: -40 ~~ +85℃
180 * Humidity:
181 ** Storage: 5 ~~ 95% (Non-Condensing)
182 ** Operating: 10 ~~ 95% (Non-Condensing)
183 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
184 * LoRa Rx current: <9 mA
185 * I/O Voltage: 3.3v
186
187 == 2.4  LED ==
188
189 ~1. The LED lights up red when there is an upstream data packet
190 2. When the network is successfully connected, the green light will be on for 5 seconds
191 3. Purple light on when receiving downlink data packets
192
193
194 == 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
195
196 Show connection diagram：
197
198 [[image:image-20220723170210-2.png||height="908" width="681"]]
199
200 1.open Arduino IDE
201
202 [[image:image-20220723170545-4.png]]
203
204 2.Open project
205
206 [[image:image-20220723170750-5.png||height="533" width="930"]]
207
208 3.Click the button marked 1 in the figure to compile, and after the compilation is complete, click the button marked 2 in the figure to upload
209
210 [[image:image-20220723171228-6.png]]
211
212 4.After the upload is successful, open the serial port monitoring and send the AT command
213
214 [[image:image-20220723172235-7.png||height="480" width="1027"]]
215
216 == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
217
218 1.Open project
219
220 [[image:image-20220723172502-8.png]]
221
222 2.Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
223
224 [[image:image-20220723172938-9.png||height="652" width="1050"]]
225
226
227 == 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
228
229 1.Open project
230
231 [[image:image-20220723173341-10.png||height="581" width="1014"]]
232
233 2.Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
234
235 [[image:image-20220723173950-11.png||height="665" width="1012"]]
236
237
238 == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
239
240
241 === 2.8.1  Items needed for update ===
242
243 1. LA66 LoRaWAN Shield
244 1. Arduino
245 1. USB TO TTL Adapter
246
247 [[image:image-20220602100052-2.png||height="385" width="600"]]
248
249
250 === 2.8.2  Connection ===
251
252
253 [[image:image-20220602101311-3.png||height="276" width="600"]]
254
255
256 (((
257 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
258 )))
259
260 (((
261 (% style="background-color:yellow" %)**GND  <-> GND
262 TXD  <->  TXD
263 RXD  <->  RXD**
264 )))
265
266
267 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
268
269 Connect USB TTL Adapter to PC after connecting the wires
270
271
272 [[image:image-20220602102240-4.png||height="304" width="600"]]
273
274
275 === 2.8.3  Upgrade steps ===
276
277
278 ==== 1.  Switch SW1 to put in ISP position ====
279
280
281 [[image:image-20220602102824-5.png||height="306" width="600"]]
282
283
284
285 ==== 2.  Press the RST switch once ====
286
287
288 [[image:image-20220602104701-12.png||height="285" width="600"]]
289
290
291
292 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
293
294
295 (((
296 (% 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/]]**
297 )))
298
299
300 [[image:image-20220602103227-6.png]]
301
302
303 [[image:image-20220602103357-7.png]]
304
305
306
307 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
308 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
309
310
311 [[image:image-20220602103844-8.png]]
312
313
314
315 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
316 (% style="color:blue" %)**3. Select the bin file to burn**
317
318
319 [[image:image-20220602104144-9.png]]
320
321
322 [[image:image-20220602104251-10.png]]
323
324
325 [[image:image-20220602104402-11.png]]
326
327
328
329 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
330 (% style="color:blue" %)**4. Click to start the download**
331
332 [[image:image-20220602104923-13.png]]
333
334
335
336 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
337 (% style="color:blue" %)**5. Check update process**
338
339
340 [[image:image-20220602104948-14.png]]
341
342
343
344 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
345 (% style="color:blue" %)**The following picture shows that the burning is successful**
346
347 [[image:image-20220602105251-15.png]]
348
349
350
351 = 3.  LA66 USB LoRaWAN Adapter =
352
353
354 == 3.1  Overview ==
355
356
357 [[image:image-20220715001142-3.png||height="145" width="220"]]
358
359
360 (((
361 (% style="color:blue" %)**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.
362 )))
363
364 (((
365 (% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 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.
366 )))
367
368 (((
369 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
370 )))
371
372 (((
373 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.
374 )))
375
376 (((
377 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
378 )))
379
380
381
382 == 3.2  Features ==
383
384 * LoRaWAN USB adapter base on LA66 LoRaWAN module
385 * Ultra-long RF range
386 * Support LoRaWAN v1.0.4 protocol
387 * Support peer-to-peer protocol
388 * TCXO crystal to ensure RF performance on low temperature
389 * Spring RF antenna
390 * Available in different frequency LoRaWAN frequency bands.
391 * World-wide unique OTAA keys.
392 * AT Command via UART-TTL interface
393 * Firmware upgradable via UART interface
394 * Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
395
396 == 3.3  Specification ==
397
398 * CPU: 32-bit 48 MHz
399 * Flash: 256KB
400 * RAM: 64KB
401 * Input Power Range: 5v
402 * Frequency Range: 150 MHz ~~ 960 MHz
403 * Maximum Power +22 dBm constant RF output
404 * High sensitivity: -148 dBm
405 * Temperature:
406 ** Storage: -55 ~~ +125℃
407 ** Operating: -40 ~~ +85℃
408 * Humidity:
409 ** Storage: 5 ~~ 95% (Non-Condensing)
410 ** Operating: 10 ~~ 95% (Non-Condensing)
411 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
412 * LoRa Rx current: <9 mA
413
414 == 3.4  Pin Mapping & LED ==
415
416
417
418 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
419
420
421 (((
422 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
423 )))
424
425
426 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
427
428
429 [[image:image-20220723100027-1.png]]
430
431
432 Open the serial port tool
433
434 [[image:image-20220602161617-8.png]]
435
436 [[image:image-20220602161718-9.png||height="457" width="800"]]
437
438
439
440 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
441
442 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
443
444
445 [[image:image-20220602161935-10.png||height="498" width="800"]]
446
447
448
449 (% style="color:blue" %)**3. See Uplink Command**
450
451 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
452
453 example: AT+SENDB=01,02,8,05820802581ea0a5
454
455 [[image:image-20220602162157-11.png||height="497" width="800"]]
456
457
458
459 (% style="color:blue" %)**4. Check to see if TTN received the message**
460
461 [[image:image-20220602162331-12.png||height="420" width="800"]]
462
463
464
465 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
466
467
468 **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]]
469
470 (**Raspberry Pi example: **[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
471
472 (% style="color:red" %)**Preconditions:**
473
474 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
475
476 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
477
478
479
480 (% style="color:blue" %)**Steps for usage:**
481
482 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
483
484 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
485
486 [[image:image-20220602115852-3.png||height="450" width="1187"]]
487
488
489
490 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
491
492
493 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
494
495
496 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
497
498 [[image:image-20220723100439-2.png]]
499
500
501
502 (% style="color:blue" %)**2. Install Minicom in RPi.**
503
504 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
505
506 (% style="background-color:yellow" %)**apt update**
507
508 (% style="background-color:yellow" %)**apt install minicom**
509
510
511 Use minicom to connect to the RPI's terminal
512
513 [[image:image-20220602153146-3.png||height="439" width="500"]]
514
515
516
517 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
518
519 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
520
521
522 [[image:image-20220602154928-5.png||height="436" width="500"]]
523
524
525
526 (% style="color:blue" %)**4. Send Uplink message**
527
528 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
529
530 example: AT+SENDB=01,02,8,05820802581ea0a5
531
532
533 [[image:image-20220602160339-6.png||height="517" width="600"]]
534
535
536
537 Check to see if TTN received the message
538
539 [[image:image-20220602160627-7.png||height="369" width="800"]]
540
541
542
543 == 3.8  Example: Use of LA66 USB LoRaWAN Module and DRAGINO-LA66-APP. ==
544
545 === 3.8.1 DRAGINO-LA66-APP ===
546
547 [[image:image-20220723102027-3.png]]
548
549 ==== Overview： ====
550
551 DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Module. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Module.
552
553 View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
554
555 ==== Conditions of Use： ====
556
557 Requires a type-c to USB adapter
558
559 [[image:image-20220723104754-4.png]]
560
561 ==== Use of APP: ====
562
563 Function and page introduction
564
565 [[image:image-20220723113448-7.png||height="1481" width="670"]]
566
567 1.Display LA66 USB LoRaWAN Module connection status
568
569 2.Check and reconnect
570
571 3.Turn send timestamps on or off
572
573 4.Display LoRaWan connection status
574
575 5.Check LoRaWan connection status
576
577 6.The RSSI value of the node when the ACK is received
578
579 7.Node's Signal Strength Icon
580
581 8.Set the packet sending interval of the node in seconds
582
583 9.AT command input box
584
585 10.Send AT command button
586
587 11.Node log box
588
589 12.clear log button
590
591 13.exit button
592
593 LA66 USB LoRaWAN Module not connected
594
595 [[image:image-20220723110520-5.png||height="903" width="677"]]
596
597 Connect LA66 USB LoRaWAN Module
598
599 [[image:image-20220723110626-6.png||height="906" width="680"]]
600
601 === 3.8.2 Use DRAGINO-LA66-APP to obtain positioning information and send it to TTNV3 through LA66 USB LoRaWAN Module and integrate it into Node-RED ===
602
603 1.Register LA66 USB LoRaWAN Module to TTNV3
604
605 [[image:image-20220723134549-8.png]]
606
607 2.Open Node-RED,And import the JSON file to generate the flow
608
609 Sample JSON file please go to this link to download：放置JSON文件的链接
610
611 For the usage of Node-RED, please refer to: [[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/>>http://8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/]]
612
613 The following is the positioning effect map
614
615 [[image:image-20220723144339-1.png]]
616
617 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
618
619 The LA66 USB LoRaWAN Module is the same as the LA66 LoRaWAN Shield update method
620
621 Just use the yellow jumper cap to short the BOOT corner and the RX corner, and then press the RESET button (without the jumper cap, you can directly short the BOOT corner and the RX corner with a wire to achieve the same effect)
622
623 [[image:image-20220723150132-2.png]]
624
625
626 = 4.  Order Info =
627
628
629 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
630
631
632 (% style="color:blue" %)**XXX**(%%): The default frequency band
633
634 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
635 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
636 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
637 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
638 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
639 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
640 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
641 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
642 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
643
644 = 5.  Reference =
645
646 * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]

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