Last modified by Xiaoling on 2023/05/26 14:19
<
From version < 87.5 >
edited by Xiaoling
on 2022/07/13 09:58
To version < 146.5 >
edited by Xiaoling
on 2022/08/16 14:17
>
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Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LA66 LoRaWAN Module
1 +LA66 LoRaWAN Shield User Manual
Content
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1 1  
2 2  
3 -{{box cssClass="floatinginfobox" title="**Contents**"}}
4 -{{toc/}}
5 -{{/box}}
3 +**Table of Contents:**
6 6  
7 7  {{toc/}}
8 8  
9 9  
10 10  
11 -= 1.  LA66 LoRaWAN Module =
12 12  
10 += 1.  LA66 LoRaWAN Shield =
13 13  
14 -== 1.1  What is LA66 LoRaWAN Module ==
15 15  
13 +== 1.1  Overview ==
16 16  
17 -(% 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.
18 18  
19 -(% 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.
16 +(((
17 +[[image:image-20220715000826-2.png||height="145" width="220"]]
18 +)))
20 20  
20 +(((
21 +
22 +)))
23 +
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.
26 +)))
27 +
28 +(((
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 +)))
32 +)))
33 +
34 +(((
35 +(((
21 21  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 +)))
38 +)))
22 22  
40 +(((
41 +(((
23 23  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 +)))
44 +)))
24 24  
46 +(((
47 +(((
25 25  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
49 +)))
50 +)))
26 26  
27 27  
53 +
28 28  == 1.2  Features ==
29 29  
56 +
57 +* Arduino Shield base on LA66 LoRaWAN module
30 30  * Support LoRaWAN v1.0.4 protocol
31 31  * Support peer-to-peer protocol
32 32  * TCXO crystal to ensure RF performance on low temperature
33 -* SMD Antenna pad and i-pex antenna connector
61 +* SMA connector
34 34  * Available in different frequency LoRaWAN frequency bands.
35 35  * World-wide unique OTAA keys.
36 36  * AT Command via UART-TTL interface
... ... @@ -37,8 +37,12 @@
37 37  * Firmware upgradable via UART interface
38 38  * Ultra-long RF range
39 39  
68 +
69 +
70 +
40 40  == 1.3  Specification ==
41 41  
73 +
42 42  * CPU: 32-bit 48 MHz
43 43  * Flash: 256KB
44 44  * RAM: 64KB
... ... @@ -57,92 +57,111 @@
57 57  * LoRa Rx current: <9 mA
58 58  * I/O Voltage: 3.3v
59 59  
60 -== 1.4  AT Command ==
61 61  
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  
65 -== 1.5  Dimension ==
95 +== 2.4  Pin Mapping & LED ==
66 66  
67 -[[image:image-20220517072526-1.png]]
68 68  
98 +[[image:image-20220814101457-1.png||height="553" width="761"]]
69 69  
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
70 70  
71 -== 1.6  Pin Mapping ==
72 72  
73 73  
74 -[[image:image-20220523101537-1.png]]
106 +== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
75 75  
76 76  
109 +**Show connection diagram：**
77 77  
78 -== 1.7  Land Pattern ==
79 79  
80 -[[image:image-20220517072821-2.png]]
112 +[[image:image-20220723170210-2.png||height="908" width="681"]]
81 81  
82 82  
83 83  
84 -= 2.  LA66 LoRaWAN Shield =
116 +(% style="color:blue" %)**1.  open Arduino IDE**
85 85  
86 86  
87 -== 2.1  Overview ==
119 +[[image:image-20220723170545-4.png]]
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  
91 91  
92 -== 2.2  Features ==
123 +(% style="color:blue" %)**2.  Open project**
93 93  
94 -* Arduino Shield base on LA66 LoRaWAN module
95 -* Support LoRaWAN v1.0.4 protocol
96 -* Support peer-to-peer protocol
97 -* TCXO crystal to ensure RF performance on low temperature
98 -* SMA connector
99 -* Available in different frequency LoRaWAN frequency bands.
100 -* World-wide unique OTAA keys.
101 -* AT Command via UART-TTL interface
102 -* Firmware upgradable via UART interface
103 -* Ultra-long RF range
104 104  
105 -== 2.3  Specification ==
126 +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]]
106 106  
107 -* CPU: 32-bit 48 MHz
108 -* Flash: 256KB
109 -* RAM: 64KB
110 -* Input Power Range: 1.8v ~~ 3.7v
111 -* Power Consumption: < 4uA.
112 -* Frequency Range: 150 MHz ~~ 960 MHz
113 -* Maximum Power +22 dBm constant RF output
114 -* High sensitivity: -148 dBm
115 -* Temperature:
116 -** Storage: -55 ~~ +125℃
117 -** Operating: -40 ~~ +85℃
118 -* Humidity:
119 -** Storage: 5 ~~ 95% (Non-Condensing)
120 -** Operating: 10 ~~ 95% (Non-Condensing)
121 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
122 -* LoRa Rx current: <9 mA
123 -* I/O Voltage: 3.3v
128 +[[image:image-20220726135239-1.png]]
124 124  
125 -== 2.4  Pin Mapping & LED ==
126 126  
131 +(% 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**
127 127  
133 +[[image:image-20220726135356-2.png]]
128 128  
129 -== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
130 130  
136 +(% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
131 131  
132 132  
139 +[[image:image-20220723172235-7.png||height="480" width="1027"]]
140 +
141 +
142 +
133 133  == 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
134 134  
135 135  
146 +(% style="color:blue" %)**1.  Open project**
136 136  
137 -== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
138 138  
149 +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]]
139 139  
140 140  
152 +[[image:image-20220723172502-8.png]]
153 +
154 +
155 +
156 +(% 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**
157 +
158 +
159 +[[image:image-20220723172938-9.png||height="652" width="1050"]]
160 +
161 +
162 +
163 +== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
164 +
165 +
166 +(% style="color:blue" %)**1.  Open project**
167 +
168 +
169 +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]]
170 +
171 +
172 +[[image:image-20220723173341-10.png||height="581" width="1014"]]
173 +
174 +
175 +
176 +(% 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**
177 +
178 +
179 +[[image:image-20220723173950-11.png||height="665" width="1012"]]
180 +
181 +
182 +
183 +(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
184 +
185 +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/]]
186 +
187 +[[image:image-20220723175700-12.png||height="602" width="995"]]
188 +
189 +
190 +
141 141  == 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
142 142  
143 143  
144 144  === 2.8.1  Items needed for update ===
145 145  
196 +
146 146  1. LA66 LoRaWAN Shield
147 147  1. Arduino
148 148  1. USB TO TTL Adapter
... ... @@ -150,6 +150,7 @@
150 150  [[image:image-20220602100052-2.png||height="385" width="600"]]
151 151  
152 152  
204 +
153 153  === 2.8.2  Connection ===
154 154  
155 155  
... ... @@ -156,12 +156,15 @@
156 156  [[image:image-20220602101311-3.png||height="276" width="600"]]
157 157  
158 158  
211 +(((
159 159  (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
213 +)))
160 160  
161 -
215 +(((
162 162  (% style="background-color:yellow" %)**GND  <-> GND
163 -TXD  <->  TXD
164 -RXD  <->  RXD**
217 +TXD  <->  TXD
218 +RXD  <->  RXD**
219 +)))
165 165  
166 166  
167 167  Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
... ... @@ -172,24 +172,30 @@
172 172  [[image:image-20220602102240-4.png||height="304" width="600"]]
173 173  
174 174  
230 +
175 175  === 2.8.3  Upgrade steps ===
176 176  
177 177  
178 -==== 1.  Switch SW1 to put in ISP position ====
234 +==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
179 179  
180 180  
181 181  [[image:image-20220602102824-5.png||height="306" width="600"]]
182 182  
183 183  
184 -==== 2.  Press the RST switch once ====
185 185  
241 +==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
242 +
243 +
186 186  [[image:image-20220602104701-12.png||height="285" width="600"]]
187 187  
188 188  
189 -==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
190 190  
248 +==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
191 191  
250 +
251 +(((
192 192  (% 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/]]**
253 +)))
193 193  
194 194  
195 195  [[image:image-20220602103227-6.png]]
... ... @@ -227,6 +227,7 @@
227 227  [[image:image-20220602104923-13.png]]
228 228  
229 229  
291 +
230 230  (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
231 231  (% style="color:blue" %)**5. Check update process**
232 232  
... ... @@ -247,11 +247,35 @@
247 247  
248 248  == 3.1  Overview ==
249 249  
250 -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.
251 251  
313 +[[image:image-20220715001142-3.png||height="145" width="220"]]
252 252  
315 +
316 +(((
317 +(% 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.
318 +)))
319 +
320 +(((
321 +(% 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.
322 +)))
323 +
324 +(((
325 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
326 +)))
327 +
328 +(((
329 +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.
330 +)))
331 +
332 +(((
333 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
334 +)))
335 +
336 +
337 +
253 253  == 3.2  Features ==
254 254  
340 +
255 255  * LoRaWAN USB adapter base on LA66 LoRaWAN module
256 256  * Ultra-long RF range
257 257  * Support LoRaWAN v1.0.4 protocol
... ... @@ -262,9 +262,11 @@
262 262  * World-wide unique OTAA keys.
263 263  * AT Command via UART-TTL interface
264 264  * Firmware upgradable via UART interface
351 +* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
265 265  
266 266  == 3.3  Specification ==
267 267  
355 +
268 268  * CPU: 32-bit 48 MHz
269 269  * Flash: 256KB
270 270  * RAM: 64KB
... ... @@ -283,18 +283,21 @@
283 283  
284 284  == 3.4  Pin Mapping & LED ==
285 285  
374 +[[image:image-20220813183239-3.png||height="526" width="662"]]
286 286  
287 287  
288 288  == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
289 289  
290 290  
380 +(((
291 291  Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
382 +)))
292 292  
293 293  
294 294  (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
295 295  
296 296  
297 -[[image:image-20220602171217-1.png||height="538" width="800"]]
388 +[[image:image-20220723100027-1.png]]
298 298  
299 299  
300 300  Open the serial port tool
... ... @@ -335,6 +335,7 @@
335 335  
336 336  **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]]
337 337  
429 +(**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]])
338 338  
339 339  (% style="color:red" %)**Preconditions:**
340 340  
... ... @@ -362,7 +362,7 @@
362 362  
363 363  (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
364 364  
365 -[[image:image-20220602171233-2.png||height="538" width="800"]]
457 +[[image:image-20220723100439-2.png]]
366 366  
367 367  
368 368  
... ... @@ -381,9 +381,11 @@
381 381  
382 382  
383 383  
384 -(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**(%%)
385 -(% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
476 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
386 386  
478 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
479 +
480 +
387 387  [[image:image-20220602154928-5.png||height="436" width="500"]]
388 388  
389 389  
... ... @@ -405,18 +405,136 @@
405 405  
406 406  
407 407  
408 -== 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
502 +== 3.8  Example: Use of LA66 USB LoRaWAN Adapter and mobile APP ==
409 409  
410 410  
505 +=== 3.8.1  Hardware and Software Connection ===
411 411  
507 +
508 +==== (% style="color:blue" %)**Overview：**(%%) ====
509 +
510 +
511 +(((
512 +DRAGINO-LA66-APP is an Open Source mobile APP for LA66 USB LoRaWAN Adapter. DRAGINO-LA66-APP has below features:
513 +
514 +* Send real-time location information of mobile phone to LoRaWAN network.
515 +* Check LoRaWAN network signal strengh.
516 +* Manually send messages to LoRaWAN network.
517 +)))
518 +
519 +
520 +
521 +==== (% style="color:blue" %)**Hardware Connection:**(%%) ====
522 +
523 +A USB to Type-C adapter is needed to connect to a Mobile phone.
524 +
525 +Note: The package of LA66 USB adapter already includes this USB Type-C adapter.
526 +
527 +[[image:image-20220813174353-2.png||height="360" width="313"]]
528 +
529 +
530 +==== (% style="color:blue" %)**Download and Install App:**(%%) ====
531 +
532 +[[(% 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)
533 +
534 +[[image:image-20220813173738-1.png]]
535 +
536 +
537 +==== (% style="color:blue" %)**Use of APP:**(%%) ====
538 +
539 +Function and page introduction
540 +
541 +[[image:image-20220723113448-7.png||height="995" width="450"]]
542 +
543 +**Block Explain:**
544 +
545 +1.  Display LA66 USB LoRaWAN Module connection status
546 +
547 +2.  Check and reconnect
548 +
549 +3.  Turn send timestamps on or off
550 +
551 +4.  Display LoRaWan connection status
552 +
553 +5.  Check LoRaWan connection status
554 +
555 +6.  The RSSI value of the node when the ACK is received
556 +
557 +7.  Node's Signal Strength Icon
558 +
559 +8.  Configure Location Uplink Interval
560 +
561 +9.  AT command input box
562 +
563 +10.  Send Button:  Send input box info to LA66 USB Adapter
564 +
565 +11.  Output Log from LA66 USB adapter
566 +
567 +12.  clear log button
568 +
569 +13.  exit button
570 +
571 +
572 +LA66 USB LoRaWAN Module not connected
573 +
574 +[[image:image-20220723110520-5.png||height="677" width="508"]]
575 +
576 +
577 +
578 +Connect LA66 USB LoRaWAN Module
579 +
580 +[[image:image-20220723110626-6.png||height="681" width="511"]]
581 +
582 +
583 +
584 +=== 3.8.2 Send data to TTNv3 and plot location info in Node-Red ===
585 +
586 +
587 +(% style="color:blue" %)**1.  Register LA66 USB LoRaWAN Module to TTNV3**
588 +
589 +[[image:image-20220723134549-8.png]]
590 +
591 +
592 +
593 +(% style="color:blue" %)**2.  Open Node-RED,And import the JSON file to generate the flow**
594 +
595 +Sample JSON file please go to **[[this link>>https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]]** to download.
596 +
597 +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/]]
598 +
599 +After see LoRaWAN Online, walk around and the APP will keep sending location info to LoRaWAN server and then to the Node Red.
600 +
601 +
602 +Example output in NodeRed is as below:
603 +
604 +[[image:image-20220723144339-1.png]]
605 +
606 +
607 +
412 412  == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
413 413  
414 414  
611 +The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
415 415  
613 +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)
416 416  
417 -= 4.  Order Info =
615 +[[image:image-20220723150132-2.png]]
418 418  
419 419  
618 +
619 += 4.  FAQ =
620 +
621 +
622 +== 4.1  How to Compile Source Code for LA66? ==
623 +
624 +
625 +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]]
626 +
627 +
628 +
629 += 5.  Order Info =
630 +
631 +
420 420  **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
421 421  
422 422  
... ... @@ -432,11 +432,7 @@
432 432  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
433 433  * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
434 434  
647 += 6.  Reference =
435 435  
436 436  
437 -
438 -= 5.  Reference =
439 -
440 440  * Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
441 -
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