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Last modified by Xiaoling on 2023/09/19 09:20
From version 149.1
edited by Edwin Chen
on 2022/10/21 11:04
Change comment: There is no comment for this version
To version 100.1
edited by Xiaoling
on 2022/07/19 09:34
Change comment: Uploaded new attachment "image-20220719093358-2.png", version {1}

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Title
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1 -LA66 LoRaWAN Module User Manual
1 +LA66 LoRaWAN Module
Author
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1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
... ... @@ -13,27 +13,16 @@
13 13  
14 14  
15 15  (((
16 -(((
17 -[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 -)))
16 +[[image:image-20220715000242-1.png||height="110" width="132"]]
19 19  
20 -(((
21 -
22 -)))
23 -
24 -(((
25 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 -)))
28 28  
29 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.
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.
32 32  )))
33 -)))
34 34  
35 35  (((
36 -(((
37 37  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
38 38  )))
39 39  
... ... @@ -40,20 +40,15 @@
40 40  (((
41 41  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 42  )))
43 -)))
44 44  
45 45  (((
46 -(((
47 47  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 48  )))
49 -)))
50 50  
51 51  
52 -
53 53  == 1.2  Features ==
54 54  
55 -
56 -* Support LoRaWAN v1.0.3 protocol
40 +* Support LoRaWAN v1.0.4 protocol
57 57  * Support peer-to-peer protocol
58 58  * TCXO crystal to ensure RF performance on low temperature
59 59  * SMD Antenna pad and i-pex antenna connector
... ... @@ -64,9 +64,9 @@
64 64  * Ultra-long RF range
65 65  
66 66  
51 +
67 67  == 1.3  Specification ==
68 68  
69 -
70 70  * CPU: 32-bit 48 MHz
71 71  * Flash: 256KB
72 72  * RAM: 64KB
... ... @@ -86,111 +86,429 @@
86 86  * I/O Voltage: 3.3v
87 87  
88 88  
73 +
74 +
89 89  == 1.4  AT Command ==
90 90  
91 91  
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>>https://www.dropbox.com/sh/wtq43za8sykpgta/AABAEE02uEAsRU-JV7bzEhMba?dl=0]].
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.
93 93  
94 94  
95 95  
96 96  == 1.5  Dimension ==
97 97  
98 -
99 99  [[image:image-20220718094750-3.png]]
100 100  
101 101  
102 102  
88 +
103 103  == 1.6  Pin Mapping ==
104 104  
105 -[[image:image-20220720111850-1.png]]
106 106  
92 +[[image:image-20220523101537-1.png]]
107 107  
108 108  
95 +
109 109  == 1.7  Land Pattern ==
110 110  
111 -
112 112  [[image:image-20220517072821-2.png]]
113 113  
114 114  
115 115  
116 -= 2.  FAQ =
102 += 2.  LA66 LoRaWAN Shield =
117 117  
118 118  
119 -(% class="wikigeneratedid" %)
120 -== 2.1 Where to find examples of how to use LA66? ==
105 +== 2.1  Overview ==
121 121  
122 -(% class="wikigeneratedid" %)
123 -Below products are made by LA66. User can use their examples as reference:
124 124  
125 -* LA66 Shield for Arduino
126 -* LA66 USB Adapter
108 +[[image:image-20220715000826-2.png||height="386" width="449"]]
127 127  
128 128  
111 +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.
129 129  
130 -== 2.2  How to Compile Source Code for LA66? ==
113 +(((
114 +(% 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.
115 +)))
131 131  
117 +(((
118 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
119 +)))
132 132  
133 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
121 +(((
122 +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.
123 +)))
134 134  
125 +(((
126 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
127 +)))
135 135  
136 136  
137 -== 2.3 Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
130 +== 2.2  Features ==
138 138  
132 +* Arduino Shield base on LA66 LoRaWAN module
133 +* Support LoRaWAN v1.0.4 protocol
134 +* Support peer-to-peer protocol
135 +* TCXO crystal to ensure RF performance on low temperature
136 +* SMA connector
137 +* Available in different frequency LoRaWAN frequency bands.
138 +* World-wide unique OTAA keys.
139 +* AT Command via UART-TTL interface
140 +* Firmware upgradable via UART interface
141 +* Ultra-long RF range
139 139  
140 -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.
143 +== 2.3  Specification ==
141 141  
145 +* CPU: 32-bit 48 MHz
146 +* Flash: 256KB
147 +* RAM: 64KB
148 +* Input Power Range: 1.8v ~~ 3.7v
149 +* Power Consumption: < 4uA.
150 +* Frequency Range: 150 MHz ~~ 960 MHz
151 +* Maximum Power +22 dBm constant RF output
152 +* High sensitivity: -148 dBm
153 +* Temperature:
154 +** Storage: -55 ~~ +125℃
155 +** Operating: -40 ~~ +85℃
156 +* Humidity:
157 +** Storage: 5 ~~ 95% (Non-Condensing)
158 +** Operating: 10 ~~ 95% (Non-Condensing)
159 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
160 +* LoRa Rx current: <9 mA
161 +* I/O Voltage: 3.3v
142 142  
163 +== 2.4  Pin Mapping & LED ==
143 143  
144 -== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
145 145  
146 146  
147 -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]]
167 +== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
148 148  
149 149  
150 150  
151 -= 3.  Order Info =
171 +== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
152 152  
153 153  
154 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
155 155  
175 +== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
156 156  
157 -(% style="color:blue" %)**XXX**(%%): The default frequency band
158 158  
159 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
160 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
161 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
162 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
163 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
164 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
165 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
166 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
167 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
168 168  
179 +== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
169 169  
170 170  
171 -= 4.  FCC Statement =
182 +=== 2.8.1  Items needed for update ===
172 172  
184 +1. LA66 LoRaWAN Shield
185 +1. Arduino
186 +1. USB TO TTL Adapter
173 173  
174 -(% style="color:red" %)**FCC Caution:**
188 +[[image:image-20220602100052-2.png||height="385" width="600"]]
175 175  
176 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
177 177  
178 -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.
191 +=== 2.8.2  Connection ===
179 179  
180 180  
181 -(% style="color:red" %)**IMPORTANT NOTE: **
194 +[[image:image-20220602101311-3.png||height="276" width="600"]]
182 182  
183 -(% 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:
184 184  
185 -—Reorient or relocate the receiving antenna.
197 +(((
198 +(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
199 +)))
186 186  
187 -—Increase the separation between the equipment and receiver.
201 +(((
202 +(% style="background-color:yellow" %)**GND  <-> GND
203 +TXD  <->  TXD
204 +RXD  <->  RXD**
205 +)))
188 188  
189 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
190 190  
191 -—Consult the dealer or an experienced radio/TV technician for help.
208 +Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
192 192  
210 +Connect USB TTL Adapter to PC after connecting the wires
193 193  
194 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
195 195  
196 -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.
213 +[[image:image-20220602102240-4.png||height="304" width="600"]]
214 +
215 +
216 +=== 2.8.3  Upgrade steps ===
217 +
218 +
219 +==== 1.  Switch SW1 to put in ISP position ====
220 +
221 +
222 +[[image:image-20220602102824-5.png||height="306" width="600"]]
223 +
224 +
225 +
226 +==== 2.  Press the RST switch once ====
227 +
228 +
229 +[[image:image-20220602104701-12.png||height="285" width="600"]]
230 +
231 +
232 +
233 +==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
234 +
235 +
236 +(((
237 +(% 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/]]**
238 +)))
239 +
240 +
241 +[[image:image-20220602103227-6.png]]
242 +
243 +
244 +[[image:image-20220602103357-7.png]]
245 +
246 +
247 +
248 +(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
249 +(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
250 +
251 +
252 +[[image:image-20220602103844-8.png]]
253 +
254 +
255 +
256 +(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
257 +(% style="color:blue" %)**3. Select the bin file to burn**
258 +
259 +
260 +[[image:image-20220602104144-9.png]]
261 +
262 +
263 +[[image:image-20220602104251-10.png]]
264 +
265 +
266 +[[image:image-20220602104402-11.png]]
267 +
268 +
269 +
270 +(% class="wikigeneratedid" id="HClicktostartthedownload" %)
271 +(% style="color:blue" %)**4. Click to start the download**
272 +
273 +[[image:image-20220602104923-13.png]]
274 +
275 +
276 +
277 +(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
278 +(% style="color:blue" %)**5. Check update process**
279 +
280 +
281 +[[image:image-20220602104948-14.png]]
282 +
283 +
284 +
285 +(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
286 +(% style="color:blue" %)**The following picture shows that the burning is successful**
287 +
288 +[[image:image-20220602105251-15.png]]
289 +
290 +
291 +
292 += 3.  LA66 USB LoRaWAN Adapter =
293 +
294 +
295 +== 3.1  Overview ==
296 +
297 +[[image:image-20220715001142-3.png||height="145" width="220"]]
298 +
299 +(% 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.
300 +
301 +(% 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.
302 +
303 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
304 +
305 +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.
306 +
307 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
308 +
309 +
310 +== 3.2  Features ==
311 +
312 +* LoRaWAN USB adapter base on LA66 LoRaWAN module
313 +* Ultra-long RF range
314 +* Support LoRaWAN v1.0.4 protocol
315 +* Support peer-to-peer protocol
316 +* TCXO crystal to ensure RF performance on low temperature
317 +* Spring RF antenna
318 +* Available in different frequency LoRaWAN frequency bands.
319 +* World-wide unique OTAA keys.
320 +* AT Command via UART-TTL interface
321 +* Firmware upgradable via UART interface
322 +* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
323 +
324 +== 3.3  Specification ==
325 +
326 +* CPU: 32-bit 48 MHz
327 +* Flash: 256KB
328 +* RAM: 64KB
329 +* Input Power Range: 5v
330 +* Frequency Range: 150 MHz ~~ 960 MHz
331 +* Maximum Power +22 dBm constant RF output
332 +* High sensitivity: -148 dBm
333 +* Temperature:
334 +** Storage: -55 ~~ +125℃
335 +** Operating: -40 ~~ +85℃
336 +* Humidity:
337 +** Storage: 5 ~~ 95% (Non-Condensing)
338 +** Operating: 10 ~~ 95% (Non-Condensing)
339 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
340 +* LoRa Rx current: <9 mA
341 +
342 +== 3.4  Pin Mapping & LED ==
343 +
344 +
345 +
346 +== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
347 +
348 +
349 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
350 +
351 +
352 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
353 +
354 +
355 +[[image:image-20220602171217-1.png||height="538" width="800"]]
356 +
357 +
358 +Open the serial port tool
359 +
360 +[[image:image-20220602161617-8.png]]
361 +
362 +[[image:image-20220602161718-9.png||height="457" width="800"]]
363 +
364 +
365 +
366 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
367 +
368 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
369 +
370 +
371 +[[image:image-20220602161935-10.png||height="498" width="800"]]
372 +
373 +
374 +
375 +(% style="color:blue" %)**3. See Uplink Command**
376 +
377 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
378 +
379 +example: AT+SENDB=01,02,8,05820802581ea0a5
380 +
381 +[[image:image-20220602162157-11.png||height="497" width="800"]]
382 +
383 +
384 +
385 +(% style="color:blue" %)**4. Check to see if TTN received the message**
386 +
387 +[[image:image-20220602162331-12.png||height="420" width="800"]]
388 +
389 +
390 +
391 +== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
392 +
393 +
394 +**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]]
395 +
396 +
397 +(% style="color:red" %)**Preconditions:**
398 +
399 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
400 +
401 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
402 +
403 +
404 +
405 +(% style="color:blue" %)**Steps for usage:**
406 +
407 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
408 +
409 +(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
410 +
411 +[[image:image-20220602115852-3.png||height="450" width="1187"]]
412 +
413 +
414 +
415 +== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
416 +
417 +
418 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
419 +
420 +
421 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
422 +
423 +[[image:image-20220602171233-2.png||height="538" width="800"]]
424 +
425 +
426 +
427 +(% style="color:blue" %)**2. Install Minicom in RPi.**
428 +
429 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
430 +
431 + (% style="background-color:yellow" %)**apt update**
432 +
433 + (% style="background-color:yellow" %)**apt install minicom**
434 +
435 +
436 +Use minicom to connect to the RPI's terminal
437 +
438 +[[image:image-20220602153146-3.png||height="439" width="500"]]
439 +
440 +
441 +
442 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
443 +
444 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
445 +
446 +
447 +[[image:image-20220602154928-5.png||height="436" width="500"]]
448 +
449 +
450 +
451 +(% style="color:blue" %)**4. Send Uplink message**
452 +
453 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
454 +
455 +example: AT+SENDB=01,02,8,05820802581ea0a5
456 +
457 +
458 +[[image:image-20220602160339-6.png||height="517" width="600"]]
459 +
460 +
461 +
462 +Check to see if TTN received the message
463 +
464 +[[image:image-20220602160627-7.png||height="369" width="800"]]
465 +
466 +
467 +
468 +== 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
469 +
470 +
471 +
472 +== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
473 +
474 +
475 +
476 +
477 += 4.  Order Info =
478 +
479 +
480 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
481 +
482 +
483 +(% style="color:blue" %)**XXX**(%%): The default frequency band
484 +
485 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
486 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
487 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
488 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
489 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
490 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
491 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
492 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
493 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
494 +
495 += 5.  Reference =
496 +
497 +* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
498 +
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