Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 87.9 >
edited by Xiaoling
on 2022/07/13 10:02
To version < 141.1 >
edited by Edwin Chen
on 2022/08/13 18:13
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Edwin
Content
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1 1  
2 2  
3 +**Table of Contents:**
4 +
3 3  {{toc/}}
4 4  
5 5  
... ... @@ -10,19 +10,47 @@
10 10  == 1.1  What is LA66 LoRaWAN Module ==
11 11  
12 12  
15 +(((
16 +(((
17 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 +)))
19 +
20 +(((
21 +
22 +)))
23 +
24 +(((
13 13  (% 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 +)))
14 14  
15 -(% 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.
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 +)))
16 16  
35 +(((
36 +(((
17 17  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
38 +)))
18 18  
40 +(((
19 19  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 +)))
20 20  
45 +(((
46 +(((
21 21  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 +)))
49 +)))
22 22  
23 23  
52 +
24 24  == 1.2  Features ==
25 25  
55 +
26 26  * Support LoRaWAN v1.0.4 protocol
27 27  * Support peer-to-peer protocol
28 28  * TCXO crystal to ensure RF performance on low temperature
... ... @@ -37,6 +37,7 @@
37 37  
38 38  == 1.3  Specification ==
39 39  
70 +
40 40  * CPU: 32-bit 48 MHz
41 41  * Flash: 256KB
42 42  * RAM: 64KB
... ... @@ -59,24 +59,26 @@
59 59  
60 60  == 1.4  AT Command ==
61 61  
93 +
62 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 63  
64 64  
97 +
65 65  == 1.5  Dimension ==
66 66  
67 -[[image:image-20220517072526-1.png]]
100 +[[image:image-20220718094750-3.png]]
68 68  
69 69  
70 70  
71 71  == 1.6  Pin Mapping ==
72 72  
106 +[[image:image-20220720111850-1.png]]
73 73  
74 -[[image:image-20220523101537-1.png]]
75 75  
76 76  
77 -
78 78  == 1.7  Land Pattern ==
79 79  
112 +
80 80  [[image:image-20220517072821-2.png]]
81 81  
82 82  
... ... @@ -86,11 +86,48 @@
86 86  
87 87  == 2.1  Overview ==
88 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 90  
123 +(((
124 +[[image:image-20220715000826-2.png||height="145" width="220"]]
125 +)))
91 91  
127 +(((
128 +
129 +)))
130 +
131 +(((
132 +(% 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.
133 +)))
134 +
135 +(((
136 +(((
137 +(% 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.
138 +)))
139 +)))
140 +
141 +(((
142 +(((
143 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
144 +)))
145 +)))
146 +
147 +(((
148 +(((
149 +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.
150 +)))
151 +)))
152 +
153 +(((
154 +(((
155 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
156 +)))
157 +)))
158 +
159 +
160 +
92 92  == 2.2  Features ==
93 93  
163 +
94 94  * Arduino Shield base on LA66 LoRaWAN module
95 95  * Support LoRaWAN v1.0.4 protocol
96 96  * Support peer-to-peer protocol
... ... @@ -106,6 +106,7 @@
106 106  
107 107  == 2.3  Specification ==
108 108  
179 +
109 109  * CPU: 32-bit 48 MHz
110 110  * Flash: 256KB
111 111  * RAM: 64KB
... ... @@ -126,27 +126,106 @@
126 126  
127 127  
128 128  
129 -== 2.4  Pin Mapping & LED ==
200 +== 2.4  LED ==
130 130  
131 131  
203 +~1. The LED lights up red when there is an upstream data packet
204 +2. When the network is successfully connected, the green light will be on for 5 seconds
205 +3. Purple light on when receiving downlink data packets
132 132  
207 +
208 +
133 133  == 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
134 134  
135 135  
212 +**Show connection diagram：**
136 136  
214 +
215 +[[image:image-20220723170210-2.png||height="908" width="681"]]
216 +
217 +
218 +
219 +(% style="color:blue" %)**1.  open Arduino IDE**
220 +
221 +
222 +[[image:image-20220723170545-4.png]]
223 +
224 +
225 +
226 +(% style="color:blue" %)**2.  Open project**
227 +
228 +
229 +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]]
230 +
231 +[[image:image-20220726135239-1.png]]
232 +
233 +
234 +(% 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**
235 +
236 +[[image:image-20220726135356-2.png]]
237 +
238 +
239 +(% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
240 +
241 +
242 +[[image:image-20220723172235-7.png||height="480" width="1027"]]
243 +
244 +
245 +
137 137  == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
138 138  
139 139  
249 +(% style="color:blue" %)**1.  Open project**
140 140  
141 -== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
142 142  
252 +Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/0sjyncafa0gjv00/AACC2m1orov-QHRkvH8-ddCka?dl=0>>https://www.dropbox.com/sh/0sjyncafa0gjv00/AACC2m1orov-QHRkvH8-ddCka?dl=0]]
143 143  
144 144  
255 +[[image:image-20220723172502-8.png]]
256 +
257 +
258 +
259 +(% style="color:blue" %)**2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
260 +
261 +
262 +[[image:image-20220723172938-9.png||height="652" width="1050"]]
263 +
264 +
265 +
266 +== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
267 +
268 +
269 +(% style="color:blue" %)**1.  Open project**
270 +
271 +
272 +Log-Temperature-Sensor-and-send-data-to-TTN source code link: [[https:~~/~~/www.dropbox.com/sh/0aagmrpec1lxmva/AABMXWVMSHG9dK1_Zv_7xOmCa?dl=0>>https://www.dropbox.com/sh/0aagmrpec1lxmva/AABMXWVMSHG9dK1_Zv_7xOmCa?dl=0]]
273 +
274 +
275 +[[image:image-20220723173341-10.png||height="581" width="1014"]]
276 +
277 +
278 +
279 +(% style="color:blue" %)**2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
280 +
281 +
282 +[[image:image-20220723173950-11.png||height="665" width="1012"]]
283 +
284 +
285 +
286 +(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
287 +
288 +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/]]
289 +
290 +[[image:image-20220723175700-12.png||height="602" width="995"]]
291 +
292 +
293 +
145 145  == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
146 146  
147 147  
148 148  === 2.8.1  Items needed for update ===
149 149  
299 +
150 150  1. LA66 LoRaWAN Shield
151 151  1. Arduino
152 152  1. USB TO TTL Adapter
... ... @@ -154,6 +154,7 @@
154 154  [[image:image-20220602100052-2.png||height="385" width="600"]]
155 155  
156 156  
307 +
157 157  === 2.8.2  Connection ===
158 158  
159 159  
... ... @@ -160,11 +160,15 @@
160 160  [[image:image-20220602101311-3.png||height="276" width="600"]]
161 161  
162 162  
314 +(((
163 163  (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
316 +)))
164 164  
318 +(((
165 165  (% style="background-color:yellow" %)**GND  <-> GND
166 166  TXD  <->  TXD
167 167  RXD  <->  RXD**
322 +)))
168 168  
169 169  
170 170  Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
... ... @@ -175,10 +175,11 @@
175 175  [[image:image-20220602102240-4.png||height="304" width="600"]]
176 176  
177 177  
333 +
178 178  === 2.8.3  Upgrade steps ===
179 179  
180 180  
181 -==== 1.  Switch SW1 to put in ISP position ====
337 +==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
182 182  
183 183  
184 184  [[image:image-20220602102824-5.png||height="306" width="600"]]
... ... @@ -185,16 +185,19 @@
185 185  
186 186  
187 187  
188 -==== 2.  Press the RST switch once ====
344 +==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
189 189  
346 +
190 190  [[image:image-20220602104701-12.png||height="285" width="600"]]
191 191  
192 192  
193 193  
194 -==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
351 +==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
195 195  
196 196  
354 +(((
197 197  (% 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/]]**
356 +)))
198 198  
199 199  
200 200  [[image:image-20220602103227-6.png]]
... ... @@ -232,6 +232,7 @@
232 232  [[image:image-20220602104923-13.png]]
233 233  
234 234  
394 +
235 235  (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
236 236  (% style="color:blue" %)**5. Check update process**
237 237  
... ... @@ -252,11 +252,35 @@
252 252  
253 253  == 3.1  Overview ==
254 254  
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.
256 256  
416 +[[image:image-20220715001142-3.png||height="145" width="220"]]
257 257  
418 +
419 +(((
420 +(% 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.
421 +)))
422 +
423 +(((
424 +(% 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.
425 +)))
426 +
427 +(((
428 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
429 +)))
430 +
431 +(((
432 +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.
433 +)))
434 +
435 +(((
436 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
437 +)))
438 +
439 +
440 +
258 258  == 3.2  Features ==
259 259  
443 +
260 260  * LoRaWAN USB adapter base on LA66 LoRaWAN module
261 261  * Ultra-long RF range
262 262  * Support LoRaWAN v1.0.4 protocol
... ... @@ -267,9 +267,13 @@
267 267  * World-wide unique OTAA keys.
268 268  * AT Command via UART-TTL interface
269 269  * Firmware upgradable via UART interface
454 +* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
270 270  
456 +
457 +
271 271  == 3.3  Specification ==
272 272  
460 +
273 273  * CPU: 32-bit 48 MHz
274 274  * Flash: 256KB
275 275  * RAM: 64KB
... ... @@ -286,6 +286,8 @@
286 286  * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
287 287  * LoRa Rx current: <9 mA
288 288  
477 +
478 +
289 289  == 3.4  Pin Mapping & LED ==
290 290  
291 291  
... ... @@ -293,13 +293,15 @@
293 293  == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
294 294  
295 295  
486 +(((
296 296  Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
488 +)))
297 297  
298 298  
299 299  (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
300 300  
301 301  
302 -[[image:image-20220602171217-1.png||height="538" width="800"]]
494 +[[image:image-20220723100027-1.png]]
303 303  
304 304  
305 305  Open the serial port tool
... ... @@ -340,6 +340,7 @@
340 340  
341 341  **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]]
342 342  
535 +(**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]])
343 343  
344 344  (% style="color:red" %)**Preconditions:**
345 345  
... ... @@ -367,7 +367,7 @@
367 367  
368 368  (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
369 369  
370 -[[image:image-20220602171233-2.png||height="538" width="800"]]
563 +[[image:image-20220723100439-2.png]]
371 371  
372 372  
373 373  
... ... @@ -386,9 +386,11 @@
386 386  
387 387  
388 388  
389 -(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**(%%)
390 -(% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
582 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
391 391  
584 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
585 +
586 +
392 392  [[image:image-20220602154928-5.png||height="436" width="500"]]
393 393  
394 394  
... ... @@ -410,18 +410,136 @@
410 410  
411 411  
412 412  
413 -== 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
608 +== 3.8  Example: Use of LA66 USB LoRaWAN Adapter and mobile APP ==
414 414  
415 415  
611 +=== 3.8.1  Hardware and Software Connection ===
416 416  
613 +
614 +==== (% style="color:blue" %)**Overview：**(%%) ====
615 +
616 +
617 +(((
618 +DRAGINO-LA66-APP is an Open Source mobile APP for LA66 USB LoRaWAN Adapter. DRAGINO-LA66-APP has below features:
619 +
620 +* Send real-time location information of mobile phone to LoRaWAN network.
621 +* Check LoRaWAN network signal strengh.
622 +* Manually send messages to LoRaWAN network.
623 +)))
624 +
625 +
626 +
627 +==== (% style="color:blue" %)**Hardware Connection:**(%%) ====
628 +
629 +A USB to Type-C adapter is needed to connect to a Mobile phone.
630 +
631 +Note: The package of LA66 USB adapter already includes this USB Type-C adapter.
632 +
633 +[[image:image-20220813174353-2.png||height="360" width="313"]]
634 +
635 +
636 +==== (% style="color:blue" %)**Download and Install App:**(%%) ====
637 +
638 +[[(% id="cke_bm_895007S" style="display:none" %)** **(%%)**Download Link for Android apk **>>https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]].  (Android Version Only)
639 +
640 +[[image:image-20220813173738-1.png]]
641 +
642 +
643 +==== (% style="color:blue" %)**Use of APP:**(%%) ====
644 +
645 +Function and page introduction
646 +
647 +[[image:image-20220723113448-7.png||height="995" width="450"]]
648 +
649 +**Block Explain:**
650 +
651 +1.  Display LA66 USB LoRaWAN Module connection status
652 +
653 +2.  Check and reconnect
654 +
655 +3.  Turn send timestamps on or off
656 +
657 +4.  Display LoRaWan connection status
658 +
659 +5.  Check LoRaWan connection status
660 +
661 +6.  The RSSI value of the node when the ACK is received
662 +
663 +7.  Node's Signal Strength Icon
664 +
665 +8.  Configure Location Uplink Interval
666 +
667 +9.  AT command input box
668 +
669 +10.  Send Button:  Send input box info to LA66 USB Adapter
670 +
671 +11.  Output Log from LA66 USB adapter
672 +
673 +12.  clear log button
674 +
675 +13.  exit button
676 +
677 +
678 +LA66 USB LoRaWAN Module not connected
679 +
680 +[[image:image-20220723110520-5.png||height="677" width="508"]]
681 +
682 +
683 +
684 +Connect LA66 USB LoRaWAN Module
685 +
686 +[[image:image-20220723110626-6.png||height="681" width="511"]]
687 +
688 +
689 +
690 +=== 3.8.2 Send data to TTNv3 and plot location info in Node-Red ===
691 +
692 +
693 +(% style="color:blue" %)**1.  Register LA66 USB LoRaWAN Module to TTNV3**
694 +
695 +[[image:image-20220723134549-8.png]]
696 +
697 +
698 +
699 +(% style="color:blue" %)**2.  Open Node-RED,And import the JSON file to generate the flow**
700 +
701 +Sample JSON file please go to **[[this link>>https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]]** to download.
702 +
703 +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/]]
704 +
705 +After see LoRaWAN Online, walk around and the APP will keep sending location info to LoRaWAN server and then to the Node Red.
706 +
707 +
708 +Example output in NodeRed is as below:
709 +
710 +[[image:image-20220723144339-1.png]]
711 +
712 +
713 +
417 417  == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
418 418  
419 419  
717 +The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
420 420  
719 +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)
421 421  
422 -= 4.  Order Info =
721 +[[image:image-20220723150132-2.png]]
423 423  
424 424  
724 +
725 += 4.  FAQ =
726 +
727 +
728 +== 4.1  How to Compile Source Code for LA66? ==
729 +
730 +
731 +Compile and Upload Code to ASR6601 Platform ：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
732 +
733 +
734 +
735 += 5.  Order Info =
736 +
737 +
425 425  **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
426 426  
427 427  
... ... @@ -439,9 +439,7 @@
439 439  
440 440  
441 441  
755 += 6.  Reference =
442 442  
443 -= 5.  Reference =
444 444  
445 445  * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
446 -
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