Last modified by Xiaoling on 2023/05/26 14:19
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From version < 151.4 >
edited by Xiaoling
on 2022/08/22 16:16
To version < 134.8 >
edited by Xiaoling
on 2022/07/26 10:45
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Summary

Details

Page properties
Title
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1 -LA66 LoRaWAN Shield User Manual
1 +LA66 LoRaWAN Module
Content
... ... @@ -6,14 +6,114 @@
6 6  
7 7  
8 8  
9 += 1.  LA66 LoRaWAN Module =
9 9  
10 -= 1.  LA66 LoRaWAN Shield =
11 11  
12 +== 1.1  What is LA66 LoRaWAN Module ==
12 12  
13 -== 1.1  Overview ==
14 14  
15 +(((
16 +(((
17 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 +)))
15 15  
16 16  (((
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 +(((
17 17  [[image:image-20220715000826-2.png||height="145" width="220"]]
18 18  )))
19 19  
... ... @@ -51,11 +51,10 @@
51 51  
52 52  
53 53  
54 -== 1.2  Features ==
154 +== 2.2  Features ==
55 55  
56 -
57 57  * Arduino Shield base on LA66 LoRaWAN module
58 -* Support LoRaWAN v1.0.3 protocol
157 +* Support LoRaWAN v1.0.4 protocol
59 59  * Support peer-to-peer protocol
60 60  * TCXO crystal to ensure RF performance on low temperature
61 61  * SMA connector
... ... @@ -65,11 +65,8 @@
65 65  * Firmware upgradable via UART interface
66 66  * Ultra-long RF range
67 67  
167 +== 2.3  Specification ==
68 68  
69 -
70 -== 1.3  Specification ==
71 -
72 -
73 73  * CPU: 32-bit 48 MHz
74 74  * Flash: 256KB
75 75  * RAM: 64KB
... ... @@ -88,27 +88,18 @@
88 88  * LoRa Rx current: <9 mA
89 89  * I/O Voltage: 3.3v
90 90  
187 +== 2.4  LED ==
91 91  
92 92  
93 -== 1.4  Pin Mapping & LED ==
94 -
95 -
96 -[[image:image-20220817085048-1.png||height="533" width="734"]]
97 -
98 -
99 -
100 100  ~1. The LED lights up red when there is an upstream data packet
101 101  2. When the network is successfully connected, the green light will be on for 5 seconds
102 102  3. Purple light on when receiving downlink data packets
103 103  
104 104  
105 -[[image:image-20220820112305-1.png||height="515" width="749"]]
106 106  
196 +== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
107 107  
108 108  
109 -== 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
110 -
111 -
112 112  **Show connection diagram：**
113 113  
114 114  
... ... @@ -129,17 +129,11 @@
129 129  LA66-LoRaWAN-shield-AT-command-via-Arduino-UNO source code link: [[https:~~/~~/www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0>>https://www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0]]
130 130  
131 131  
132 -[[image:image-20220726135239-1.png]]
133 133  
134 -
135 -
136 136  (% style="color:blue" %)**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**
137 137  
138 138  
139 -[[image:image-20220726135356-2.png]]
140 140  
141 -
142 -
143 143  (% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
144 144  
145 145  
... ... @@ -147,7 +147,7 @@
147 147  
148 148  
149 149  
150 -== 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
231 +== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
151 151  
152 152  
153 153  (% style="color:blue" %)**1.  Open project**
... ... @@ -167,7 +167,7 @@
167 167  
168 168  
169 169  
170 -== 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
251 +== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
171 171  
172 172  
173 173  (% style="color:blue" %)**1.  Open project**
... ... @@ -189,18 +189,16 @@
189 189  
190 190  (% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
191 191  
273 +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/]]
192 192  
193 -For the usage of Node-RED, please refer to: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Node-RED/>>http://wiki.dragino.com/xwiki/bin/view/Main/Node-RED/]]
194 -
195 -
196 196  [[image:image-20220723175700-12.png||height="602" width="995"]]
197 197  
198 198  
199 199  
200 -== 1.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
279 +== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
201 201  
202 202  
203 -=== 1.8.1  Items needed for update ===
282 +=== 2.8.1  Items needed for update ===
204 204  
205 205  
206 206  1. LA66 LoRaWAN Shield
... ... @@ -207,14 +207,12 @@
207 207  1. Arduino
208 208  1. USB TO TTL Adapter
209 209  
210 -
211 211  [[image:image-20220602100052-2.png||height="385" width="600"]]
212 212  
213 213  
292 +=== 2.8.2  Connection ===
214 214  
215 -=== 1.8.2  Connection ===
216 216  
217 -
218 218  [[image:image-20220602101311-3.png||height="276" width="600"]]
219 219  
220 220  
... ... @@ -237,11 +237,9 @@
237 237  [[image:image-20220602102240-4.png||height="304" width="600"]]
238 238  
239 239  
317 +=== 2.8.3  Upgrade steps ===
240 240  
241 -=== 1.8.3  Upgrade steps ===
242 242  
243 -
244 -
245 245  ==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
246 246  
247 247  
... ... @@ -252,16 +252,15 @@
252 252  ==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
253 253  
254 254  
255 -[[image:image-20220817085447-1.png]]
330 +[[image:image-20220602104701-12.png||height="285" width="600"]]
256 256  
257 257  
258 258  
259 -
260 260  ==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
261 261  
262 262  
263 263  (((
264 -(% style="color:blue" %)**1. Software download link:  **(%%)**[[https:~~/~~/www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0>>https://www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0]]**
338 +(% 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/]]**
265 265  )))
266 266  
267 267  
... ... @@ -297,7 +297,6 @@
297 297  (% class="wikigeneratedid" id="HClicktostartthedownload" %)
298 298  (% style="color:blue" %)**4. Click to start the download**
299 299  
300 -
301 301  [[image:image-20220602104923-13.png]]
302 302  
303 303  
... ... @@ -313,27 +313,314 @@
313 313  (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
314 314  (% style="color:blue" %)**The following picture shows that the burning is successful**
315 315  
316 -
317 317  [[image:image-20220602105251-15.png]]
318 318  
319 319  
320 320  
321 -= 2.  FAQ =
393 += 3.  LA66 USB LoRaWAN Adapter =
322 322  
323 323  
324 -== 2.1  How to Compile Source Code for LA66? ==
396 +== 3.1  Overview ==
325 325  
326 326  
327 -Compile and Upload Code to ASR6601 Platform ：[[Instruction>>Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Module.Compile and Upload Code to ASR6601 Platform.WebHome]]
399 +[[image:image-20220715001142-3.png||height="145" width="220"]]
328 328  
329 329  
402 +(((
403 +(% 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.
404 +)))
330 330  
331 -= 3.  Order Info =
406 +(((
407 +(% 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.
408 +)))
332 332  
410 +(((
411 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
412 +)))
333 333  
334 -**Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
414 +(((
415 +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.
416 +)))
335 335  
418 +(((
419 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
420 +)))
336 336  
422 +
423 +
424 +== 3.2  Features ==
425 +
426 +* LoRaWAN USB adapter base on LA66 LoRaWAN module
427 +* Ultra-long RF range
428 +* Support LoRaWAN v1.0.4 protocol
429 +* Support peer-to-peer protocol
430 +* TCXO crystal to ensure RF performance on low temperature
431 +* Spring RF antenna
432 +* Available in different frequency LoRaWAN frequency bands.
433 +* World-wide unique OTAA keys.
434 +* AT Command via UART-TTL interface
435 +* Firmware upgradable via UART interface
436 +* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
437 +
438 +== 3.3  Specification ==
439 +
440 +* CPU: 32-bit 48 MHz
441 +* Flash: 256KB
442 +* RAM: 64KB
443 +* Input Power Range: 5v
444 +* Frequency Range: 150 MHz ~~ 960 MHz
445 +* Maximum Power +22 dBm constant RF output
446 +* High sensitivity: -148 dBm
447 +* Temperature:
448 +** Storage: -55 ~~ +125℃
449 +** Operating: -40 ~~ +85℃
450 +* Humidity:
451 +** Storage: 5 ~~ 95% (Non-Condensing)
452 +** Operating: 10 ~~ 95% (Non-Condensing)
453 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
454 +* LoRa Rx current: <9 mA
455 +
456 +== 3.4  Pin Mapping & LED ==
457 +
458 +
459 +
460 +== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
461 +
462 +
463 +(((
464 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
465 +)))
466 +
467 +
468 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
469 +
470 +
471 +[[image:image-20220723100027-1.png]]
472 +
473 +
474 +Open the serial port tool
475 +
476 +[[image:image-20220602161617-8.png]]
477 +
478 +[[image:image-20220602161718-9.png||height="457" width="800"]]
479 +
480 +
481 +
482 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
483 +
484 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
485 +
486 +
487 +[[image:image-20220602161935-10.png||height="498" width="800"]]
488 +
489 +
490 +
491 +(% style="color:blue" %)**3. See Uplink Command**
492 +
493 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
494 +
495 +example: AT+SENDB=01,02,8,05820802581ea0a5
496 +
497 +[[image:image-20220602162157-11.png||height="497" width="800"]]
498 +
499 +
500 +
501 +(% style="color:blue" %)**4. Check to see if TTN received the message**
502 +
503 +[[image:image-20220602162331-12.png||height="420" width="800"]]
504 +
505 +
506 +
507 +== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
508 +
509 +
510 +**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]]
511 +
512 +(**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]])
513 +
514 +(% style="color:red" %)**Preconditions:**
515 +
516 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
517 +
518 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
519 +
520 +
521 +
522 +(% style="color:blue" %)**Steps for usage:**
523 +
524 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
525 +
526 +(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
527 +
528 +[[image:image-20220602115852-3.png||height="450" width="1187"]]
529 +
530 +
531 +
532 +== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
533 +
534 +
535 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
536 +
537 +
538 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
539 +
540 +[[image:image-20220723100439-2.png]]
541 +
542 +
543 +
544 +(% style="color:blue" %)**2. Install Minicom in RPi.**
545 +
546 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
547 +
548 + (% style="background-color:yellow" %)**apt update**
549 +
550 + (% style="background-color:yellow" %)**apt install minicom**
551 +
552 +
553 +Use minicom to connect to the RPI's terminal
554 +
555 +[[image:image-20220602153146-3.png||height="439" width="500"]]
556 +
557 +
558 +
559 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
560 +
561 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
562 +
563 +
564 +[[image:image-20220602154928-5.png||height="436" width="500"]]
565 +
566 +
567 +
568 +(% style="color:blue" %)**4. Send Uplink message**
569 +
570 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
571 +
572 +example: AT+SENDB=01,02,8,05820802581ea0a5
573 +
574 +
575 +[[image:image-20220602160339-6.png||height="517" width="600"]]
576 +
577 +
578 +
579 +Check to see if TTN received the message
580 +
581 +[[image:image-20220602160627-7.png||height="369" width="800"]]
582 +
583 +
584 +
585 +== 3.8  Example: Use of LA66 USB LoRaWAN Adapter and APP sample process and DRAGINO-LA66-APP. ==
586 +
587 +
588 +=== 3.8.1 DRAGINO-LA66-APP ===
589 +
590 +
591 +[[image:image-20220723102027-3.png]]
592 +
593 +
594 +
595 +==== (% style="color:blue" %)**Overview：**(%%) ====
596 +
597 +
598 +DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Adapter and APP sample process. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Adapter.
599 +
600 +View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
601 +
602 +
603 +
604 +==== (% style="color:blue" %)**Conditions of Use：**(%%) ====
605 +
606 +
607 +Requires a type-c to USB adapter
608 +
609 +[[image:image-20220723104754-4.png]]
610 +
611 +
612 +
613 +==== (% style="color:blue" %)**Use of APP:**(%%) ====
614 +
615 +
616 +Function and page introduction
617 +
618 +[[image:image-20220723113448-7.png||height="1481" width="670"]]
619 +
620 +1.Display LA66 USB LoRaWAN Module connection status
621 +
622 +2.Check and reconnect
623 +
624 +3.Turn send timestamps on or off
625 +
626 +4.Display LoRaWan connection status
627 +
628 +5.Check LoRaWan connection status
629 +
630 +6.The RSSI value of the node when the ACK is received
631 +
632 +7.Node's Signal Strength Icon
633 +
634 +8.Set the packet sending interval of the node in seconds
635 +
636 +9.AT command input box
637 +
638 +10.Send AT command button
639 +
640 +11.Node log box
641 +
642 +12.clear log button
643 +
644 +13.exit button
645 +
646 +
647 +LA66 USB LoRaWAN Module not connected
648 +
649 +[[image:image-20220723110520-5.png||height="903" width="677"]]
650 +
651 +
652 +
653 +Connect LA66 USB LoRaWAN Module
654 +
655 +[[image:image-20220723110626-6.png||height="906" width="680"]]
656 +
657 +
658 +
659 +=== 3.8.2  Use DRAGINO-LA66-APP to obtain positioning information and send it to TTNV3 through LA66 USB LoRaWAN Adapter and integrate it into Node-RED ===
660 +
661 +
662 +(% style="color:blue" %)**1.  Register LA66 USB LoRaWAN Module to TTNV3**
663 +
664 +[[image:image-20220723134549-8.png]]
665 +
666 +
667 +
668 +(% style="color:blue" %)**2.  Open Node-RED,And import the JSON file to generate the flow**
669 +
670 +Sample JSON file please go to this link to download：放置JSON文件的链接
671 +
672 +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/]]
673 +
674 +The following is the positioning effect map
675 +
676 +[[image:image-20220723144339-1.png]]
677 +
678 +
679 +
680 +== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
681 +
682 +
683 +The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
684 +
685 +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)
686 +
687 +[[image:image-20220723150132-2.png]]
688 +
689 +
690 +
691 += 4.  Order Info =
692 +
693 +
694 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
695 +
696 +
337 337  (% style="color:blue" %)**XXX**(%%): The default frequency band
338 338  
339 339  * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
... ... @@ -348,10 +348,7 @@
348 348  
349 349  
350 350  
711 += 5.  Reference =
351 351  
352 -= 4.  Reference =
353 353  
354 -
355 -* Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
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714 +* 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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