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Last modified by Xiaoling on 2023/09/19 09:20
From version 98.3
edited by Xiaoling
on 2022/07/18 09:56
Change comment: There is no comment for this version
To version 149.2
edited by Xiaoling
on 2022/10/21 11:10
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -LA66 LoRaWAN Module
1 +LA66 LoRaWAN Module User Manual
Content
... ... @@ -13,16 +13,27 @@
13 13  
14 14  
15 15  (((
16 -[[image:image-20220715000242-1.png||height="110" width="132"]]
16 +(((
17 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 +)))
17 17  
20 +(((
21 +
22 +)))
23 +
24 +(((
18 18  (% 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.
19 19  )))
27 +)))
20 20  
21 21  (((
22 -(% 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 +(((
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.
23 23  )))
33 +)))
24 24  
25 25  (((
36 +(((
26 26  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
27 27  )))
28 28  
... ... @@ -29,15 +29,20 @@
29 29  (((
30 30  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.
31 31  )))
43 +)))
32 32  
33 33  (((
46 +(((
34 34  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
35 35  )))
49 +)))
36 36  
37 37  
52 +
38 38  == 1.2  Features ==
39 39  
40 -* Support LoRaWAN v1.0.4 protocol
55 +
56 +* Support LoRaWAN v1.0.3 protocol
41 41  * Support peer-to-peer protocol
42 42  * TCXO crystal to ensure RF performance on low temperature
43 43  * SMD Antenna pad and i-pex antenna connector
... ... @@ -51,6 +51,7 @@
51 51  
52 52  == 1.3  Specification ==
53 53  
70 +
54 54  * CPU: 32-bit 48 MHz
55 55  * Flash: 256KB
56 56  * RAM: 64KB
... ... @@ -71,428 +71,111 @@
71 71  
72 72  
73 73  
74 -
75 75  == 1.4  AT Command ==
76 76  
77 77  
78 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
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>>https://www.dropbox.com/sh/wtq43za8sykpgta/AABAEE02uEAsRU-JV7bzEhMba?dl=0]].
79 79  
80 80  
97 +
81 81  == 1.5  Dimension ==
82 82  
100 +
83 83  [[image:image-20220718094750-3.png]]
84 84  
85 85  
86 86  
87 -
88 88  == 1.6  Pin Mapping ==
89 89  
107 +[[image:image-20220720111850-1.png]]
90 90  
91 -[[image:image-20220523101537-1.png]]
92 92  
93 93  
94 -
95 95  == 1.7  Land Pattern ==
96 96  
113 +
97 97  [[image:image-20220517072821-2.png]]
98 98  
99 99  
100 100  
101 -= 2.  LA66 LoRaWAN Shield =
118 += 2.  FAQ =
102 102  
103 103  
104 -== 2.1  Overview ==
121 +== 2.1  Where to find examples of how to use LA66? ==
105 105  
106 106  
107 -[[image:image-20220715000826-2.png||height="386" width="449"]]
124 +(% class="wikigeneratedid" %)
125 +Below products are made by LA66. User can use their examples as reference:
108 108  
127 +* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
128 +* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
109 109  
110 -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.
111 111  
112 -(((
113 -(% 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.
114 -)))
115 115  
116 -(((
117 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
118 -)))
132 +== 2.2  How to Compile Source Code for LA66? ==
119 119  
120 -(((
121 -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.
122 -)))
123 123  
124 -(((
125 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
126 -)))
135 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
127 127  
128 128  
129 -== 2.2  Features ==
130 130  
131 -* Arduino Shield base on LA66 LoRaWAN module
132 -* Support LoRaWAN v1.0.4 protocol
133 -* Support peer-to-peer protocol
134 -* TCXO crystal to ensure RF performance on low temperature
135 -* SMA connector
136 -* Available in different frequency LoRaWAN frequency bands.
137 -* World-wide unique OTAA keys.
138 -* AT Command via UART-TTL interface
139 -* Firmware upgradable via UART interface
140 -* Ultra-long RF range
139 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
141 141  
142 -== 2.3  Specification ==
143 143  
144 -* CPU: 32-bit 48 MHz
145 -* Flash: 256KB
146 -* RAM: 64KB
147 -* Input Power Range: 1.8v ~~ 3.7v
148 -* Power Consumption: < 4uA.
149 -* Frequency Range: 150 MHz ~~ 960 MHz
150 -* Maximum Power +22 dBm constant RF output
151 -* High sensitivity: -148 dBm
152 -* Temperature:
153 -** Storage: -55 ~~ +125℃
154 -** Operating: -40 ~~ +85℃
155 -* Humidity:
156 -** Storage: 5 ~~ 95% (Non-Condensing)
157 -** Operating: 10 ~~ 95% (Non-Condensing)
158 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
159 -* LoRa Rx current: <9 mA
160 -* I/O Voltage: 3.3v
142 +Yes, this is possible, user can refer[[ the source code from ASR >>https://github.com/asrlora/asr_lora_6601/tree/master/projects/ASR6601SE-EVAL/examples/lora]]to get examples for how to its I/O Interfaces.
161 161  
162 -== 2.4  Pin Mapping & LED ==
163 163  
164 164  
146 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
165 165  
166 -== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
167 167  
149 +Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.Instruction for LA66 Peer to Peer firmware.WebHome]]
168 168  
169 169  
170 -== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
171 171  
153 += 3.  Order Info =
172 172  
173 173  
174 -== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
156 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
175 175  
176 176  
159 +(% style="color:blue" %)**XXX**(%%): The default frequency band
177 177  
178 -== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
161 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
162 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
163 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
164 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
165 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
166 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
167 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
168 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
169 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
179 179  
180 180  
181 -=== 2.8.1  Items needed for update ===
182 182  
183 -1. LA66 LoRaWAN Shield
184 -1. Arduino
185 -1. USB TO TTL Adapter
173 += 4.  FCC Statement =
186 186  
187 -[[image:image-20220602100052-2.png||height="385" width="600"]]
188 188  
176 +(% style="color:red" %)**FCC Caution:**
189 189  
190 -=== 2.8.2  Connection ===
178 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
191 191  
180 +This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
192 192  
193 -[[image:image-20220602101311-3.png||height="276" width="600"]]
194 194  
183 +(% style="color:red" %)**IMPORTANT NOTE: **
195 195  
196 -(((
197 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
198 -)))
185 +(% style="color:red" %)**Note:**(%%) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
199 199  
200 -(((
201 -(% style="background-color:yellow" %)**GND  <-> GND
202 -TXD  <->  TXD
203 -RXD  <->  RXD**
204 -)))
187 +—Reorient or relocate the receiving antenna.
205 205  
189 +—Increase the separation between the equipment and receiver.
206 206  
207 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
191 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
208 208  
209 -Connect USB TTL Adapter to PC after connecting the wires
193 +—Consult the dealer or an experienced radio/TV technician for help.
210 210  
211 211  
212 -[[image:image-20220602102240-4.png||height="304" width="600"]]
196 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
213 213  
214 -
215 -=== 2.8.3  Upgrade steps ===
216 -
217 -
218 -==== 1.  Switch SW1 to put in ISP position ====
219 -
220 -
221 -[[image:image-20220602102824-5.png||height="306" width="600"]]
222 -
223 -
224 -
225 -==== 2.  Press the RST switch once ====
226 -
227 -
228 -[[image:image-20220602104701-12.png||height="285" width="600"]]
229 -
230 -
231 -
232 -==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
233 -
234 -
235 -(((
236 -(% 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/]]**
237 -)))
238 -
239 -
240 -[[image:image-20220602103227-6.png]]
241 -
242 -
243 -[[image:image-20220602103357-7.png]]
244 -
245 -
246 -
247 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
248 -(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
249 -
250 -
251 -[[image:image-20220602103844-8.png]]
252 -
253 -
254 -
255 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
256 -(% style="color:blue" %)**3. Select the bin file to burn**
257 -
258 -
259 -[[image:image-20220602104144-9.png]]
260 -
261 -
262 -[[image:image-20220602104251-10.png]]
263 -
264 -
265 -[[image:image-20220602104402-11.png]]
266 -
267 -
268 -
269 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
270 -(% style="color:blue" %)**4. Click to start the download**
271 -
272 -[[image:image-20220602104923-13.png]]
273 -
274 -
275 -
276 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
277 -(% style="color:blue" %)**5. Check update process**
278 -
279 -
280 -[[image:image-20220602104948-14.png]]
281 -
282 -
283 -
284 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
285 -(% style="color:blue" %)**The following picture shows that the burning is successful**
286 -
287 -[[image:image-20220602105251-15.png]]
288 -
289 -
290 -
291 -= 3.  LA66 USB LoRaWAN Adapter =
292 -
293 -
294 -== 3.1  Overview ==
295 -
296 -[[image:image-20220715001142-3.png||height="145" width="220"]]
297 -
298 -(% 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.
299 -
300 -(% 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.
301 -
302 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
303 -
304 -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.
305 -
306 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
307 -
308 -
309 -== 3.2  Features ==
310 -
311 -* LoRaWAN USB adapter base on LA66 LoRaWAN module
312 -* Ultra-long RF range
313 -* Support LoRaWAN v1.0.4 protocol
314 -* Support peer-to-peer protocol
315 -* TCXO crystal to ensure RF performance on low temperature
316 -* Spring RF antenna
317 -* Available in different frequency LoRaWAN frequency bands.
318 -* World-wide unique OTAA keys.
319 -* AT Command via UART-TTL interface
320 -* Firmware upgradable via UART interface
321 -* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
322 -
323 -== 3.3  Specification ==
324 -
325 -* CPU: 32-bit 48 MHz
326 -* Flash: 256KB
327 -* RAM: 64KB
328 -* Input Power Range: 5v
329 -* Frequency Range: 150 MHz ~~ 960 MHz
330 -* Maximum Power +22 dBm constant RF output
331 -* High sensitivity: -148 dBm
332 -* Temperature:
333 -** Storage: -55 ~~ +125℃
334 -** Operating: -40 ~~ +85℃
335 -* Humidity:
336 -** Storage: 5 ~~ 95% (Non-Condensing)
337 -** Operating: 10 ~~ 95% (Non-Condensing)
338 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
339 -* LoRa Rx current: <9 mA
340 -
341 -== 3.4  Pin Mapping & LED ==
342 -
343 -
344 -
345 -== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
346 -
347 -
348 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
349 -
350 -
351 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
352 -
353 -
354 -[[image:image-20220602171217-1.png||height="538" width="800"]]
355 -
356 -
357 -Open the serial port tool
358 -
359 -[[image:image-20220602161617-8.png]]
360 -
361 -[[image:image-20220602161718-9.png||height="457" width="800"]]
362 -
363 -
364 -
365 -(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
366 -
367 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
368 -
369 -
370 -[[image:image-20220602161935-10.png||height="498" width="800"]]
371 -
372 -
373 -
374 -(% style="color:blue" %)**3. See Uplink Command**
375 -
376 -Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
377 -
378 -example: AT+SENDB=01,02,8,05820802581ea0a5
379 -
380 -[[image:image-20220602162157-11.png||height="497" width="800"]]
381 -
382 -
383 -
384 -(% style="color:blue" %)**4. Check to see if TTN received the message**
385 -
386 -[[image:image-20220602162331-12.png||height="420" width="800"]]
387 -
388 -
389 -
390 -== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
391 -
392 -
393 -**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]]
394 -
395 -
396 -(% style="color:red" %)**Preconditions:**
397 -
398 -(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
399 -
400 -(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
401 -
402 -
403 -
404 -(% style="color:blue" %)**Steps for usage:**
405 -
406 -(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
407 -
408 -(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
409 -
410 -[[image:image-20220602115852-3.png||height="450" width="1187"]]
411 -
412 -
413 -
414 -== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
415 -
416 -
417 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
418 -
419 -
420 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
421 -
422 -[[image:image-20220602171233-2.png||height="538" width="800"]]
423 -
424 -
425 -
426 -(% style="color:blue" %)**2. Install Minicom in RPi.**
427 -
428 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
429 -
430 - (% style="background-color:yellow" %)**apt update**
431 -
432 - (% style="background-color:yellow" %)**apt install minicom**
433 -
434 -
435 -Use minicom to connect to the RPI's terminal
436 -
437 -[[image:image-20220602153146-3.png||height="439" width="500"]]
438 -
439 -
440 -
441 -(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
442 -
443 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
444 -
445 -
446 -[[image:image-20220602154928-5.png||height="436" width="500"]]
447 -
448 -
449 -
450 -(% style="color:blue" %)**4. Send Uplink message**
451 -
452 -Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
453 -
454 -example: AT+SENDB=01,02,8,05820802581ea0a5
455 -
456 -
457 -[[image:image-20220602160339-6.png||height="517" width="600"]]
458 -
459 -
460 -
461 -Check to see if TTN received the message
462 -
463 -[[image:image-20220602160627-7.png||height="369" width="800"]]
464 -
465 -
466 -
467 -== 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
468 -
469 -
470 -
471 -== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
472 -
473 -
474 -
475 -
476 -= 4.  Order Info =
477 -
478 -
479 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
480 -
481 -
482 -(% style="color:blue" %)**XXX**(%%): The default frequency band
483 -
484 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
485 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
486 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
487 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
488 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
489 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
490 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
491 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
492 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
493 -
494 -= 5.  Reference =
495 -
496 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
497 -
498 -
198 +This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
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