Wiki source code of LA66 LoRaWAN Module

Version 129.1 by Herong Lu on 2022/07/23 17:33
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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]]
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
215 == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
216
217
218
219 == 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
220
221
222
223 == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
224
225
226 === 2.8.1  Items needed for update ===
227
228 1. LA66 LoRaWAN Shield
229 1. Arduino
230 1. USB TO TTL Adapter
231
232 [[image:image-20220602100052-2.png||height="385" width="600"]]
233
234
235 === 2.8.2  Connection ===
236
237
238 [[image:image-20220602101311-3.png||height="276" width="600"]]
239
240
241 (((
242 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
243 )))
244
245 (((
246 (% style="background-color:yellow" %)**GND  <-> GND
247 TXD  <->  TXD
248 RXD  <->  RXD**
249 )))
250
251
252 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
253
254 Connect USB TTL Adapter to PC after connecting the wires
255
256
257 [[image:image-20220602102240-4.png||height="304" width="600"]]
258
259
260 === 2.8.3  Upgrade steps ===
261
262
263 ==== 1.  Switch SW1 to put in ISP position ====
264
265
266 [[image:image-20220602102824-5.png||height="306" width="600"]]
267
268
269
270 ==== 2.  Press the RST switch once ====
271
272
273 [[image:image-20220602104701-12.png||height="285" width="600"]]
274
275
276
277 ==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
278
279
280 (((
281 (% 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/]]**
282 )))
283
284
285 [[image:image-20220602103227-6.png]]
286
287
288 [[image:image-20220602103357-7.png]]
289
290
291
292 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
293 (% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
294
295
296 [[image:image-20220602103844-8.png]]
297
298
299
300 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
301 (% style="color:blue" %)**3. Select the bin file to burn**
302
303
304 [[image:image-20220602104144-9.png]]
305
306
307 [[image:image-20220602104251-10.png]]
308
309
310 [[image:image-20220602104402-11.png]]
311
312
313
314 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
315 (% style="color:blue" %)**4. Click to start the download**
316
317 [[image:image-20220602104923-13.png]]
318
319
320
321 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
322 (% style="color:blue" %)**5. Check update process**
323
324
325 [[image:image-20220602104948-14.png]]
326
327
328
329 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
330 (% style="color:blue" %)**The following picture shows that the burning is successful**
331
332 [[image:image-20220602105251-15.png]]
333
334
335
336 = 3.  LA66 USB LoRaWAN Adapter =
337
338
339 == 3.1  Overview ==
340
341
342 [[image:image-20220715001142-3.png||height="145" width="220"]]
343
344
345 (((
346 (% 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.
347 )))
348
349 (((
350 (% 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.
351 )))
352
353 (((
354 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
355 )))
356
357 (((
358 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.
359 )))
360
361 (((
362 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
363 )))
364
365
366
367 == 3.2  Features ==
368
369 * LoRaWAN USB adapter base on LA66 LoRaWAN module
370 * Ultra-long RF range
371 * Support LoRaWAN v1.0.4 protocol
372 * Support peer-to-peer protocol
373 * TCXO crystal to ensure RF performance on low temperature
374 * Spring RF antenna
375 * Available in different frequency LoRaWAN frequency bands.
376 * World-wide unique OTAA keys.
377 * AT Command via UART-TTL interface
378 * Firmware upgradable via UART interface
379 * Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
380
381 == 3.3  Specification ==
382
383 * CPU: 32-bit 48 MHz
384 * Flash: 256KB
385 * RAM: 64KB
386 * Input Power Range: 5v
387 * Frequency Range: 150 MHz ~~ 960 MHz
388 * Maximum Power +22 dBm constant RF output
389 * High sensitivity: -148 dBm
390 * Temperature:
391 ** Storage: -55 ~~ +125℃
392 ** Operating: -40 ~~ +85℃
393 * Humidity:
394 ** Storage: 5 ~~ 95% (Non-Condensing)
395 ** Operating: 10 ~~ 95% (Non-Condensing)
396 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
397 * LoRa Rx current: <9 mA
398
399 == 3.4  Pin Mapping & LED ==
400
401
402
403 == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
404
405
406 (((
407 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
408 )))
409
410
411 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
412
413
414 [[image:image-20220723100027-1.png]]
415
416
417 Open the serial port tool
418
419 [[image:image-20220602161617-8.png]]
420
421 [[image:image-20220602161718-9.png||height="457" width="800"]]
422
423
424
425 (% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
426
427 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
428
429
430 [[image:image-20220602161935-10.png||height="498" width="800"]]
431
432
433
434 (% style="color:blue" %)**3. See Uplink Command**
435
436 Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
437
438 example: AT+SENDB=01,02,8,05820802581ea0a5
439
440 [[image:image-20220602162157-11.png||height="497" width="800"]]
441
442
443
444 (% style="color:blue" %)**4. Check to see if TTN received the message**
445
446 [[image:image-20220602162331-12.png||height="420" width="800"]]
447
448
449
450 == 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
451
452
453 **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]]
454
455 (**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]])
456
457 (% style="color:red" %)**Preconditions:**
458
459 (% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
460
461 (% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
462
463
464
465 (% style="color:blue" %)**Steps for usage:**
466
467 (% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
468
469 (% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
470
471 [[image:image-20220602115852-3.png||height="450" width="1187"]]
472
473
474
475 == 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
476
477
478 Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
479
480
481 (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
482
483 [[image:image-20220723100439-2.png]]
484
485
486
487 (% style="color:blue" %)**2. Install Minicom in RPi.**
488
489 (% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
490
491 (% style="background-color:yellow" %)**apt update**
492
493 (% style="background-color:yellow" %)**apt install minicom**
494
495
496 Use minicom to connect to the RPI's terminal
497
498 [[image:image-20220602153146-3.png||height="439" width="500"]]
499
500
501
502 (% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
503
504 The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
505
506
507 [[image:image-20220602154928-5.png||height="436" width="500"]]
508
509
510
511 (% style="color:blue" %)**4. Send Uplink message**
512
513 Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
514
515 example: AT+SENDB=01,02,8,05820802581ea0a5
516
517
518 [[image:image-20220602160339-6.png||height="517" width="600"]]
519
520
521
522 Check to see if TTN received the message
523
524 [[image:image-20220602160627-7.png||height="369" width="800"]]
525
526
527
528 == 3.8  Example: Use of LA66 USB LoRaWAN Module and DRAGINO-LA66-APP. ==
529
530 === 3.8.1 DRAGINO-LA66-APP ===
531
532 [[image:image-20220723102027-3.png]]
533
534 ==== Overview： ====
535
536 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.
537
538 View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
539
540 ==== Conditions of Use： ====
541
542 Requires a type-c to USB adapter
543
544 [[image:image-20220723104754-4.png]]
545
546 ==== Use of APP: ====
547
548 Function and page introduction
549
550 [[image:image-20220723113448-7.png||height="1481" width="670"]]
551
552 1.Display LA66 USB LoRaWAN Module connection status
553
554 2.Check and reconnect
555
556 3.Turn send timestamps on or off
557
558 4.Display LoRaWan connection status
559
560 5.Check LoRaWan connection status
561
562 6.The RSSI value of the node when the ACK is received
563
564 7.Node's Signal Strength Icon
565
566 8.Set the packet sending interval of the node in seconds
567
568 9.AT command input box
569
570 10.Send AT command button
571
572 11.Node log box
573
574 12.clear log button
575
576 13.exit button
577
578 LA66 USB LoRaWAN Module not connected
579
580 [[image:image-20220723110520-5.png||height="903" width="677"]]
581
582 Connect LA66 USB LoRaWAN Module
583
584 [[image:image-20220723110626-6.png||height="906" width="680"]]
585
586 === 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 ===
587
588 1.Register LA66 USB LoRaWAN Module to TTNV3
589
590 [[image:image-20220723134549-8.png]]
591
592 2.Open Node-RED,And import the JSON file to generate the flow
593
594 Sample JSON file please go to this link to download：放置JSON文件的链接
595
596 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/]]
597
598 The following is the positioning effect map
599
600 [[image:image-20220723144339-1.png]]
601
602 == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
603
604 The LA66 USB LoRaWAN Module is the same as the LA66 LoRaWAN Shield update method
605
606 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)
607
608 [[image:image-20220723150132-2.png]]
609
610
611 = 4.  Order Info =
612
613
614 **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
615
616
617 (% style="color:blue" %)**XXX**(%%): The default frequency band
618
619 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
620 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
621 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
622 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
623 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
624 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
625 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
626 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
627 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
628
629 = 5.  Reference =
630
631 * 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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