<
From version < 100.2 >
edited by Xiaoling
on 2022/07/19 11:34
To version < 146.6 >
edited by Xiaoling
on 2022/08/16 14:18
>
Change comment: There is no comment for this version

Summary

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Title
... ... @@ -1,1 +1,1 @@
1 -LA66 LoRaWAN Module
1 +LA66 LoRaWAN Shield User Manual
Content
... ... @@ -6,16 +6,15 @@
6 6  
7 7  
8 8  
9 -= 1.  LA66 LoRaWAN Module =
10 10  
10 += 1.  LA66 LoRaWAN Shield =
11 11  
12 -== 1.1  What is LA66 LoRaWAN Module ==
13 13  
13 +== 1.1  Overview ==
14 14  
15 15  
16 16  (((
17 -(((
18 -[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
17 +[[image:image-20220715000826-2.png||height="145" width="220"]]
19 19  )))
20 20  
21 21  (((
... ... @@ -23,13 +23,12 @@
23 23  )))
24 24  
25 25  (((
26 -(% 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.
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.
27 27  )))
28 -)))
29 29  
30 30  (((
31 31  (((
32 -(% 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.
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.
33 33  )))
34 34  )))
35 35  
... ... @@ -37,8 +37,10 @@
37 37  (((
38 38  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
39 39  )))
38 +)))
40 40  
41 41  (((
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  )))
... ... @@ -51,13 +51,14 @@
51 51  
52 52  
53 53  
54 -
55 55  == 1.2  Features ==
56 56  
56 +
57 +* Arduino Shield base on LA66 LoRaWAN module
57 57  * Support LoRaWAN v1.0.4 protocol
58 58  * Support peer-to-peer protocol
59 59  * TCXO crystal to ensure RF performance on low temperature
60 -* SMD Antenna pad and i-pex antenna connector
61 +* SMA connector
61 61  * Available in different frequency LoRaWAN frequency bands.
62 62  * World-wide unique OTAA keys.
63 63  * AT Command via UART-TTL interface
... ... @@ -66,8 +66,10 @@
66 66  
67 67  
68 68  
70 +
69 69  == 1.3  Specification ==
70 70  
73 +
71 71  * CPU: 32-bit 48 MHz
72 72  * Flash: 256KB
73 73  * RAM: 64KB
... ... @@ -88,139 +88,109 @@
88 88  
89 89  
90 90  
91 -== 1.4  AT Command ==
92 92  
95 +== 1.4  Pin Mapping & LED ==
93 93  
94 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
95 95  
98 +[[image:image-20220814101457-1.png||height="553" width="761"]]
96 96  
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
97 97  
98 -== 1.5  Dimension ==
99 99  
100 -[[image:image-20220718094750-3.png]]
101 101  
106 +== 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
102 102  
103 103  
109 +**Show connection diagram:**
104 104  
105 -== 1.6  Pin Mapping ==
106 106  
112 +[[image:image-20220723170210-2.png||height="908" width="681"]]
107 107  
108 -[[image:image-20220719093156-1.png]]
109 109  
110 110  
116 +(% style="color:blue" %)**1.  open Arduino IDE**
111 111  
112 -== 1.7  Land Pattern ==
113 113  
114 -[[image:image-20220517072821-2.png]]
119 +[[image:image-20220723170545-4.png]]
115 115  
116 116  
117 117  
118 -= 2.  LA66 LoRaWAN Shield =
123 +(% style="color:blue" %)**2.  Open project**
119 119  
120 120  
121 -== 2.1  Overview ==
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]]
122 122  
128 +[[image:image-20220726135239-1.png]]
123 123  
124 124  
125 -(((
126 -[[image:image-20220715000826-2.png||height="145" width="220"]]
127 -)))
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**
128 128  
129 -(((
130 -
131 -)))
133 +[[image:image-20220726135356-2.png]]
132 132  
133 -(((
134 -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.
135 -)))
136 136  
137 -(((
138 -(((
139 -(% 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.
140 -)))
141 -)))
136 +(% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
142 142  
143 -(((
144 -(((
145 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
146 -)))
147 -)))
148 148  
149 -(((
150 -(((
151 -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.
152 -)))
153 -)))
139 +[[image:image-20220723172235-7.png||height="480" width="1027"]]
154 154  
155 -(((
156 -(((
157 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
158 -)))
159 -)))
160 160  
161 161  
143 +== 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
162 162  
163 163  
164 -== 2.2  Features ==
146 +(% style="color:blue" %)**1Open project**
165 165  
166 -* Arduino Shield base on LA66 LoRaWAN module
167 -* Support LoRaWAN v1.0.4 protocol
168 -* Support peer-to-peer protocol
169 -* TCXO crystal to ensure RF performance on low temperature
170 -* SMA connector
171 -* Available in different frequency LoRaWAN frequency bands.
172 -* World-wide unique OTAA keys.
173 -* AT Command via UART-TTL interface
174 -* Firmware upgradable via UART interface
175 -* Ultra-long RF range
176 176  
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]]
177 177  
178 178  
152 +[[image:image-20220723172502-8.png]]
179 179  
180 -== 2.3  Specification ==
181 181  
182 -* CPU: 32-bit 48 MHz
183 -* Flash: 256KB
184 -* RAM: 64KB
185 -* Input Power Range: 1.8v ~~ 3.7v
186 -* Power Consumption: < 4uA.
187 -* Frequency Range: 150 MHz ~~ 960 MHz
188 -* Maximum Power +22 dBm constant RF output
189 -* High sensitivity: -148 dBm
190 -* Temperature:
191 -** Storage: -55 ~~ +125℃
192 -** Operating: -40 ~~ +85℃
193 -* Humidity:
194 -** Storage: 5 ~~ 95% (Non-Condensing)
195 -** Operating: 10 ~~ 95% (Non-Condensing)
196 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
197 -* LoRa Rx current: <9 mA
198 -* I/O Voltage: 3.3v
199 199  
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**
200 200  
201 201  
159 +[[image:image-20220723172938-9.png||height="652" width="1050"]]
202 202  
203 -== 2.4  Pin Mapping & LED ==
204 204  
205 205  
163 +== 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
206 206  
207 -== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
208 208  
166 +(% style="color:blue" %)**1.  Open project**
209 209  
210 210  
211 -== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
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]]
212 212  
213 213  
172 +[[image:image-20220723173341-10.png||height="581" width="1014"]]
214 214  
215 -== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
216 216  
217 217  
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**
218 218  
219 -== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
220 220  
179 +[[image:image-20220723173950-11.png||height="665" width="1012"]]
221 221  
222 -=== 2.8.1  Items needed for update ===
223 223  
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 +
191 +== 1.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
192 +
193 +
194 +=== 1.8.1  Items needed for update ===
195 +
196 +
224 224  1. LA66 LoRaWAN Shield
225 225  1. Arduino
226 226  1. USB TO TTL Adapter
... ... @@ -228,9 +228,10 @@
228 228  [[image:image-20220602100052-2.png||height="385" width="600"]]
229 229  
230 230  
231 -=== 2.8.2  Connection ===
232 232  
205 +=== 1.8.2  Connection ===
233 233  
207 +
234 234  [[image:image-20220602101311-3.png||height="276" width="600"]]
235 235  
236 236  
... ... @@ -253,10 +253,11 @@
253 253  [[image:image-20220602102240-4.png||height="304" width="600"]]
254 254  
255 255  
230 +
256 256  === 2.8.3  Upgrade steps ===
257 257  
258 258  
259 -==== 1.  Switch SW1 to put in ISP position ====
234 +==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
260 260  
261 261  
262 262  [[image:image-20220602102824-5.png||height="306" width="600"]]
... ... @@ -263,7 +263,7 @@
263 263  
264 264  
265 265  
266 -==== 2.  Press the RST switch once ====
241 +==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
267 267  
268 268  
269 269  [[image:image-20220602104701-12.png||height="285" width="600"]]
... ... @@ -270,7 +270,7 @@
270 270  
271 271  
272 272  
273 -==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
248 +==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
274 274  
275 275  
276 276  (((
... ... @@ -334,21 +334,35 @@
334 334  
335 335  == 3.1  Overview ==
336 336  
312 +
337 337  [[image:image-20220715001142-3.png||height="145" width="220"]]
338 338  
315 +
316 +(((
339 339  (% 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 +)))
340 340  
341 -(% 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.
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 +)))
342 342  
324 +(((
343 343  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
326 +)))
344 344  
328 +(((
345 345  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 +)))
346 346  
332 +(((
347 347  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
334 +)))
348 348  
349 349  
337 +
350 350  == 3.2  Features ==
351 351  
340 +
352 352  * LoRaWAN USB adapter base on LA66 LoRaWAN module
353 353  * Ultra-long RF range
354 354  * Support LoRaWAN v1.0.4 protocol
... ... @@ -361,10 +361,9 @@
361 361  * Firmware upgradable via UART interface
362 362  * Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
363 363  
364 -
365 -
366 366  == 3.3  Specification ==
367 367  
355 +
368 368  * CPU: 32-bit 48 MHz
369 369  * Flash: 256KB
370 370  * RAM: 64KB
... ... @@ -381,22 +381,23 @@
381 381  * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
382 382  * LoRa Rx current: <9 mA
383 383  
384 -
385 -
386 386  == 3.4  Pin Mapping & LED ==
387 387  
374 +[[image:image-20220813183239-3.png||height="526" width="662"]]
388 388  
389 389  
390 390  == 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
391 391  
392 392  
380 +(((
393 393  Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
382 +)))
394 394  
395 395  
396 396  (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
397 397  
398 398  
399 -[[image:image-20220602171217-1.png||height="538" width="800"]]
388 +[[image:image-20220723100027-1.png]]
400 400  
401 401  
402 402  Open the serial port tool
... ... @@ -437,6 +437,7 @@
437 437  
438 438  **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]]
439 439  
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]])
440 440  
441 441  (% style="color:red" %)**Preconditions:**
442 442  
... ... @@ -464,7 +464,7 @@
464 464  
465 465  (% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
466 466  
467 -[[image:image-20220602171233-2.png||height="538" width="800"]]
457 +[[image:image-20220723100439-2.png]]
468 468  
469 469  
470 470  
... ... @@ -509,18 +509,136 @@
509 509  
510 510  
511 511  
512 -== 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 oLA66 USB LoRaWAN Adapter and mobile APP ==
513 513  
514 514  
505 +=== 3.8.1  Hardware and Software Connection ===
515 515  
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 +
516 516  == 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
517 517  
518 518  
611 +The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
519 519  
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)
520 520  
521 -= 4.  Order Info =
615 +[[image:image-20220723150132-2.png]]
522 522  
523 523  
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 +
524 524  **Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
525 525  
526 526  
... ... @@ -536,6 +536,7 @@
536 536  * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
537 537  * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
538 538  
539 -= 5.  Reference =
647 += 6.  Reference =
540 540  
649 +
541 541  * 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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