Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 151.4 >
edited by Xiaoling
on 2022/08/22 16:16
To version < 100.3 >
edited by Xiaoling
on 2022/07/19 11:41
>
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Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LA66 LoRaWAN Shield User Manual
1 +LA66 LoRaWAN Module
Content
... ... @@ -6,15 +6,15 @@
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 16  (((
17 -[[image:image-20220715000826-2.png||height="145" width="220"]]
16 +(((
17 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 18  )))
19 19  
20 20  (((
... ... @@ -22,12 +22,13 @@
22 22  )))
23 23  
24 24  (((
25 -(% 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.
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 26  )))
27 +)))
27 27  
28 28  (((
29 29  (((
30 -(% 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.
31 +(% 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.
31 31  )))
32 32  )))
33 33  
... ... @@ -35,10 +35,8 @@
35 35  (((
36 36  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 37  )))
38 -)))
39 39  
40 40  (((
41 -(((
42 42  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.
43 43  )))
44 44  )))
... ... @@ -53,12 +53,10 @@
53 53  
54 54  == 1.2  Features ==
55 55  
56 -
57 -* Arduino Shield base on LA66 LoRaWAN module
58 -* Support LoRaWAN v1.0.3 protocol
55 +* 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 -* SMA connector
58 +* SMD Antenna pad and i-pex antenna connector
62 62  * Available in different frequency LoRaWAN frequency bands.
63 63  * World-wide unique OTAA keys.
64 64  * AT Command via UART-TTL interface
... ... @@ -69,7 +69,6 @@
69 69  
70 70  == 1.3  Specification ==
71 71  
72 -
73 73  * CPU: 32-bit 48 MHz
74 74  * Flash: 256KB
75 75  * RAM: 64KB
... ... @@ -90,131 +90,147 @@
90 90  
91 91  
92 92  
93 -== 1.4  Pin Mapping & LED ==
89 +== 1.4  AT Command ==
94 94  
95 95  
96 -[[image:image-20220817085048-1.png||height="533" width="734"]]
92 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
97 97  
98 98  
99 99  
100 -~1. The LED lights up red when there is an upstream data packet
101 -2. When the network is successfully connected, the green light will be on for 5 seconds
102 -3. Purple light on when receiving downlink data packets
96 +== 1.5  Dimension ==
103 103  
98 +[[image:image-20220718094750-3.png]]
104 104  
105 -[[image:image-20220820112305-1.png||height="515" width="749"]]
106 106  
107 107  
108 108  
109 -== 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
103 +== 1.6  Pin Mapping ==
110 110  
111 111  
112 -**Show connection diagram：**
106 +[[image:image-20220719093156-1.png]]
113 113  
114 114  
115 -[[image:image-20220723170210-2.png||height="908" width="681"]]
116 116  
110 +== 1.7  Land Pattern ==
117 117  
112 +[[image:image-20220517072821-2.png]]
118 118  
119 -(% style="color:blue" %)**1.  open Arduino IDE**
120 120  
121 121  
122 -[[image:image-20220723170545-4.png]]
116 += 2.  LA66 LoRaWAN Shield =
123 123  
124 124  
119 +== 2.1  Overview ==
125 125  
126 -(% style="color:blue" %)**2.  Open project**
127 127  
122 +(((
123 +[[image:image-20220715000826-2.png||height="145" width="220"]]
124 +)))
128 128  
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]]
126 +(((
127 +
128 +)))
130 130  
130 +(((
131 +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.
132 +)))
131 131  
132 -[[image:image-20220726135239-1.png]]
134 +(((
135 +(((
136 +(% 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.
137 +)))
138 +)))
133 133  
140 +(((
141 +(((
142 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
143 +)))
144 +)))
134 134  
146 +(((
147 +(((
148 +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.
149 +)))
150 +)))
135 135  
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**
152 +(((
153 +(((
154 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
155 +)))
156 +)))
137 137  
138 138  
139 -[[image:image-20220726135356-2.png]]
140 140  
160 +== 2.2  Features ==
141 141  
162 +* Arduino Shield base on LA66 LoRaWAN module
163 +* Support LoRaWAN v1.0.4 protocol
164 +* Support peer-to-peer protocol
165 +* TCXO crystal to ensure RF performance on low temperature
166 +* SMA connector
167 +* Available in different frequency LoRaWAN frequency bands.
168 +* World-wide unique OTAA keys.
169 +* AT Command via UART-TTL interface
170 +* Firmware upgradable via UART interface
171 +* Ultra-long RF range
142 142  
143 -(% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
144 144  
145 145  
146 -[[image:image-20220723172235-7.png||height="480" width="1027"]]
175 +== 2.3  Specification ==
147 147  
177 +* CPU: 32-bit 48 MHz
178 +* Flash: 256KB
179 +* RAM: 64KB
180 +* Input Power Range: 1.8v ~~ 3.7v
181 +* Power Consumption: < 4uA.
182 +* Frequency Range: 150 MHz ~~ 960 MHz
183 +* Maximum Power +22 dBm constant RF output
184 +* High sensitivity: -148 dBm
185 +* Temperature:
186 +** Storage: -55 ~~ +125℃
187 +** Operating: -40 ~~ +85℃
188 +* Humidity:
189 +** Storage: 5 ~~ 95% (Non-Condensing)
190 +** Operating: 10 ~~ 95% (Non-Condensing)
191 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
192 +* LoRa Rx current: <9 mA
193 +* I/O Voltage: 3.3v
148 148  
149 149  
150 -== 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
151 151  
197 +== 2.4  Pin Mapping & LED ==
152 152  
153 -(% style="color:blue" %)**1.  Open project**
154 154  
155 155  
156 -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]]
201 +== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
157 157  
158 158  
159 -[[image:image-20220723172502-8.png]]
160 160  
205 +== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
161 161  
162 162  
163 -(% 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**
164 164  
209 +== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
165 165  
166 -[[image:image-20220723172938-9.png||height="652" width="1050"]]
167 167  
168 168  
213 +== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
169 169  
170 -== 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
171 171  
216 +=== 2.8.1  Items needed for update ===
172 172  
173 -(% style="color:blue" %)**1.  Open project**
174 -
175 -
176 -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]]
177 -
178 -
179 -[[image:image-20220723173341-10.png||height="581" width="1014"]]
180 -
181 -
182 -
183 -(% 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**
184 -
185 -
186 -[[image:image-20220723173950-11.png||height="665" width="1012"]]
187 -
188 -
189 -
190 -(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
191 -
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 -[[image:image-20220723175700-12.png||height="602" width="995"]]
197 -
198 -
199 -
200 -== 1.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
201 -
202 -
203 -=== 1.8.1  Items needed for update ===
204 -
205 -
206 206  1. LA66 LoRaWAN Shield
207 207  1. Arduino
208 208  1. USB TO TTL Adapter
209 209  
210 210  
223 +
211 211  [[image:image-20220602100052-2.png||height="385" width="600"]]
212 212  
213 213  
227 +=== 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  
... ... @@ -237,31 +237,28 @@
237 237  [[image:image-20220602102240-4.png||height="304" width="600"]]
238 238  
239 239  
252 +=== 2.8.3  Upgrade steps ===
240 240  
241 -=== 1.8.3  Upgrade steps ===
242 242  
255 +==== 1.  Switch SW1 to put in ISP position ====
243 243  
244 244  
245 -==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
246 -
247 -
248 248  [[image:image-20220602102824-5.png||height="306" width="600"]]
249 249  
250 250  
251 251  
252 -==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
262 +==== 2.  Press the RST switch once ====
253 253  
254 254  
255 -[[image:image-20220817085447-1.png]]
265 +[[image:image-20220602104701-12.png||height="285" width="600"]]
256 256  
257 257  
258 258  
269 +==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
259 259  
260 -==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
261 261  
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]]**
273 +(% 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 +313,208 @@
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 =
328 += 3.  LA66 USB LoRaWAN Adapter =
322 322  
323 323  
324 -== 2.1  How to Compile Source Code for LA66? ==
331 +== 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]]
334 +[[image:image-20220715001142-3.png||height="145" width="220"]]
328 328  
329 329  
337 +(% 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.
330 330  
331 -= 3.  Order Info =
339 +(% 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.
332 332  
341 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
333 333  
334 -**Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
343 +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.
335 335  
345 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
336 336  
347 +
348 +
349 +== 3.2  Features ==
350 +
351 +* LoRaWAN USB adapter base on LA66 LoRaWAN module
352 +* Ultra-long RF range
353 +* Support LoRaWAN v1.0.4 protocol
354 +* Support peer-to-peer protocol
355 +* TCXO crystal to ensure RF performance on low temperature
356 +* Spring RF antenna
357 +* Available in different frequency LoRaWAN frequency bands.
358 +* World-wide unique OTAA keys.
359 +* AT Command via UART-TTL interface
360 +* Firmware upgradable via UART interface
361 +* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
362 +
363 +
364 +
365 +== 3.3  Specification ==
366 +
367 +* CPU: 32-bit 48 MHz
368 +* Flash: 256KB
369 +* RAM: 64KB
370 +* Input Power Range: 5v
371 +* Frequency Range: 150 MHz ~~ 960 MHz
372 +* Maximum Power +22 dBm constant RF output
373 +* High sensitivity: -148 dBm
374 +* Temperature:
375 +** Storage: -55 ~~ +125℃
376 +** Operating: -40 ~~ +85℃
377 +* Humidity:
378 +** Storage: 5 ~~ 95% (Non-Condensing)
379 +** Operating: 10 ~~ 95% (Non-Condensing)
380 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
381 +* LoRa Rx current: <9 mA
382 +
383 +
384 +
385 +== 3.4  Pin Mapping & LED ==
386 +
387 +
388 +
389 +== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
390 +
391 +
392 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
393 +
394 +
395 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
396 +
397 +
398 +[[image:image-20220602171217-1.png||height="538" width="800"]]
399 +
400 +
401 +Open the serial port tool
402 +
403 +[[image:image-20220602161617-8.png]]
404 +
405 +[[image:image-20220602161718-9.png||height="457" width="800"]]
406 +
407 +
408 +
409 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
410 +
411 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
412 +
413 +
414 +[[image:image-20220602161935-10.png||height="498" width="800"]]
415 +
416 +
417 +
418 +(% style="color:blue" %)**3. See Uplink Command**
419 +
420 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
421 +
422 +example: AT+SENDB=01,02,8,05820802581ea0a5
423 +
424 +[[image:image-20220602162157-11.png||height="497" width="800"]]
425 +
426 +
427 +
428 +(% style="color:blue" %)**4. Check to see if TTN received the message**
429 +
430 +[[image:image-20220602162331-12.png||height="420" width="800"]]
431 +
432 +
433 +
434 +== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
435 +
436 +
437 +**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]]
438 +
439 +
440 +(% style="color:red" %)**Preconditions:**
441 +
442 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
443 +
444 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
445 +
446 +
447 +
448 +(% style="color:blue" %)**Steps for usage:**
449 +
450 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
451 +
452 +(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
453 +
454 +[[image:image-20220602115852-3.png||height="450" width="1187"]]
455 +
456 +
457 +
458 +== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
459 +
460 +
461 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
462 +
463 +
464 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
465 +
466 +[[image:image-20220602171233-2.png||height="538" width="800"]]
467 +
468 +
469 +
470 +(% style="color:blue" %)**2. Install Minicom in RPi.**
471 +
472 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
473 +
474 + (% style="background-color:yellow" %)**apt update**
475 +
476 + (% style="background-color:yellow" %)**apt install minicom**
477 +
478 +
479 +Use minicom to connect to the RPI's terminal
480 +
481 +[[image:image-20220602153146-3.png||height="439" width="500"]]
482 +
483 +
484 +
485 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
486 +
487 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
488 +
489 +
490 +[[image:image-20220602154928-5.png||height="436" width="500"]]
491 +
492 +
493 +
494 +(% style="color:blue" %)**4. Send Uplink message**
495 +
496 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
497 +
498 +example: AT+SENDB=01,02,8,05820802581ea0a5
499 +
500 +
501 +[[image:image-20220602160339-6.png||height="517" width="600"]]
502 +
503 +
504 +
505 +Check to see if TTN received the message
506 +
507 +[[image:image-20220602160627-7.png||height="369" width="800"]]
508 +
509 +
510 +
511 +== 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
512 +
513 +
514 +
515 +== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
516 +
517 +
518 +
519 +
520 += 4.  Order Info =
521 +
522 +
523 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
524 +
525 +
337 337  (% style="color:blue" %)**XXX**(%%): The default frequency band
338 338  
339 339  * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
... ... @@ -348,10 +348,6 @@
348 348  
349 349  
350 350  
540 += 5.  Reference =
351 351  
352 -= 4.  Reference =
353 -
354 -
355 -* Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
356 -
357 -
542 +* 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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