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Last modified by Xiaoling on 2023/09/19 09:20
From version 162.4
edited by Xiaoling
on 2023/06/05 15:36
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To version 87.12
edited by Xiaoling
on 2022/07/13 10:04
Change comment: There is no comment for this version

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Title
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1 -LA66 LoRaWAN Module User Manual
1 +LA66 LoRaWAN Module
Content
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1 1  
2 2  
3 -**Table of Contents:**
4 -
5 5  {{toc/}}
6 6  
7 7  
... ... @@ -8,50 +8,24 @@
8 8  
9 9  = 1.  LA66 LoRaWAN Module =
10 10  
9 +
11 11  == 1.1  What is LA66 LoRaWAN Module ==
12 12  
13 13  
14 -(((
15 -(((
16 -[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
17 -)))
18 -
19 -(((
20 -
21 -)))
22 -
23 -(((
24 24  (% 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 -)))
26 -)))
27 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 -)))
15 +(% 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.
33 33  
34 -(((
35 -(((
36 36  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 -)))
38 38  
39 -(((
40 40  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.
41 -)))
42 -)))
43 43  
44 -(((
45 -(((
46 46  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
47 -)))
48 -)))
49 49  
50 50  
51 51  == 1.2  Features ==
52 52  
53 -
54 -* Support LoRaWAN v1.0.3 protocol
26 +* Support LoRaWAN v1.0.4 protocol
55 55  * Support peer-to-peer protocol
56 56  * TCXO crystal to ensure RF performance on low temperature
57 57  * SMD Antenna pad and i-pex antenna connector
... ... @@ -62,10 +62,8 @@
62 62  * Ultra-long RF range
63 63  
64 64  
65 -
66 66  == 1.3  Specification ==
67 67  
68 -
69 69  * CPU: 32-bit 48 MHz
70 70  * Flash: 256KB
71 71  * RAM: 64KB
... ... @@ -85,180 +85,394 @@
85 85  * I/O Voltage: 3.3v
86 86  
87 87  
88 -
89 89  == 1.4  AT Command ==
90 90  
60 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
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]].
93 93  
94 -
95 95  == 1.5  Dimension ==
96 96  
65 +[[image:image-20220517072526-1.png]]
97 97  
98 -[[image:image-20220718094750-3.png]]
99 99  
100 100  
101 101  == 1.6  Pin Mapping ==
102 102  
103 -[[image:image-20220720111850-1.png]]
104 104  
72 +[[image:image-20220523101537-1.png]]
105 105  
106 -== 1.7  Land Pattern ==
107 107  
108 108  
76 +== 1.7  Land Pattern ==
77 +
109 109  [[image:image-20220517072821-2.png]]
110 110  
111 111  
112 -= 2.  FAQ =
113 113  
114 -== 2.1  Where to find examples of how to use LA66? ==
82 += 2.  LA66 LoRaWAN Shield =
115 115  
116 116  
117 -(% class="wikigeneratedid" %)
118 -Below products are made by LA66. User can use their examples as reference:
85 +== 2.1  Overview ==
119 119  
120 -* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
121 -* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
87 +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.
122 122  
123 123  
90 +== 2.2  Features ==
124 124  
125 -== 2.2  How to Compile Source Code for LA66? ==
92 +* Arduino Shield base on LA66 LoRaWAN module
93 +* Support LoRaWAN v1.0.4 protocol
94 +* Support peer-to-peer protocol
95 +* TCXO crystal to ensure RF performance on low temperature
96 +* SMA connector
97 +* Available in different frequency LoRaWAN frequency bands.
98 +* World-wide unique OTAA keys.
99 +* AT Command via UART-TTL interface
100 +* Firmware upgradable via UART interface
101 +* Ultra-long RF range
126 126  
127 127  
128 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
104 +== 2.3  Specification ==
129 129  
106 +* CPU: 32-bit 48 MHz
107 +* Flash: 256KB
108 +* RAM: 64KB
109 +* Input Power Range: 1.8v ~~ 3.7v
110 +* Power Consumption: < 4uA.
111 +* Frequency Range: 150 MHz ~~ 960 MHz
112 +* Maximum Power +22 dBm constant RF output
113 +* High sensitivity: -148 dBm
114 +* Temperature:
115 +** Storage: -55 ~~ +125℃
116 +** Operating: -40 ~~ +85℃
117 +* Humidity:
118 +** Storage: 5 ~~ 95% (Non-Condensing)
119 +** Operating: 10 ~~ 95% (Non-Condensing)
120 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
121 +* LoRa Rx current: <9 mA
122 +* I/O Voltage: 3.3v
130 130  
131 -== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
132 132  
125 +== 2.4  Pin Mapping & LED ==
133 133  
134 -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.
135 135  
136 136  
137 -== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
129 +== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
138 138  
139 139  
140 -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]]
141 141  
133 +== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
142 142  
143 -== 2.5 How can i use J-LInk to debug LA66? ==
144 144  
145 145  
146 -(% style="color:#037691" %)**The steps are as follows:**
137 +== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
147 147  
148 148  
149 -(% style="color:blue" %)**1. Install J-Link software from**
150 150  
151 -[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
141 +== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
152 152  
153 153  
154 -(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
144 +=== 2.8.1  Items needed for update ===
155 155  
146 +1. LA66 LoRaWAN Shield
147 +1. Arduino
148 +1. USB TO TTL Adapter
156 156  
157 -[[image:image-20230605151850-1.png||height="676" width="640"]]
150 +[[image:image-20220602100052-2.png||height="385" width="600"]]
158 158  
159 159  
160 -[[image:image-20230605151850-2.png]]
153 +=== 2.8.2  Connection ===
161 161  
162 -(% style="display:none" %) (%%)
163 163  
164 -(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
156 +[[image:image-20220602101311-3.png||height="276" width="600"]]
165 165  
166 166  
167 -**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
159 +(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
168 168  
169 -**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
161 +(% style="background-color:yellow" %)**GND  <-> GND
162 +TXD  <->  TXD
163 +RXD  <->  RXD**
170 170  
171 -**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
172 172  
173 -**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
166 +Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
174 174  
175 -[[image:image-20230605151850-3.png||height="629" width="1182"]]
168 +Connect USB TTL Adapter to PC after connecting the wires
176 176  
177 -(% style="display:none" %) (%%)
178 178  
179 -(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
171 +[[image:image-20220602102240-4.png||height="304" width="600"]]
180 180  
181 -(% style="display:none" %) [[image:image-20230605151850-4.png]]
182 182  
174 +=== 2.8.3  Upgrade steps ===
183 183  
184 -**Add ASR6601 256KB Flash to Flash Download**
185 185  
186 -[[image:image-20230605152412-12.png]]
177 +==== 1.  Switch SW1 to put in ISP position ====
187 187  
188 188  
189 -[[image:image-20230605151851-6.png]]
180 +[[image:image-20220602102824-5.png||height="306" width="600"]]
190 190  
191 191  
192 -(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
193 193  
184 +==== 2.  Press the RST switch once ====
194 194  
195 -[[image:image-20230605151851-7.png]]
196 196  
197 -[[image:image-20230605151851-8.png]]
187 +[[image:image-20220602104701-12.png||height="285" width="600"]]
198 198  
199 199  
200 -(% style="color:red" %)**Note: After debug, user should change the Flash address back to 0x0800D000, and upload the OTA bootloader to LA66. Otherwise, the compiled program doesn't support OTA update.**
201 201  
191 +==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
202 202  
203 -(% style="color:blue" %)**6. Comment the low power function in main.c.**
204 204  
194 +(% 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/]]**
205 205  
206 -[[image:image-20230605151851-9.png]]
207 207  
197 +[[image:image-20220602103227-6.png]]
208 208  
209 -(% style="color:blue" %)**Click Debug mode to debug.**
210 210  
211 -[[image:image-20230605151851-10.png||height="293" width="1275"]]
200 +[[image:image-20220602103357-7.png]]
212 212  
213 213  
214 -[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
215 215  
216 -(% style="display:none" %) (%%)
204 +(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
205 +(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
217 217  
218 -= 3.  Order Info =
219 219  
208 +[[image:image-20220602103844-8.png]]
220 220  
221 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
222 222  
223 -(% style="color:blue" %)**XXX**(%%): The default frequency band
224 224  
225 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
226 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
227 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
228 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
229 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
230 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
231 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
232 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
233 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
212 +(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
213 +(% style="color:blue" %)**3. Select the bin file to burn**
234 234  
235 235  
216 +[[image:image-20220602104144-9.png]]
236 236  
237 -= 4.  FCC Statement =
238 238  
219 +[[image:image-20220602104251-10.png]]
239 239  
240 -(% style="color:red" %)**FCC Caution:**
241 241  
242 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
222 +[[image:image-20220602104402-11.png]]
243 243  
244 -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.
245 245  
246 246  
247 -(% style="color:red" %)**IMPORTANT NOTE: **
226 +(% class="wikigeneratedid" id="HClicktostartthedownload" %)
227 +(% style="color:blue" %)**4. Click to start the download**
248 248  
249 -(% 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:
229 +[[image:image-20220602104923-13.png]]
250 250  
251 -—Reorient or relocate the receiving antenna.
252 252  
253 -—Increase the separation between the equipment and receiver.
254 254  
255 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
233 +(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
234 +(% style="color:blue" %)**5. Check update process**
256 256  
257 -—Consult the dealer or an experienced radio/TV technician for help.
258 258  
237 +[[image:image-20220602104948-14.png]]
259 259  
260 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
261 261  
262 -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.
263 263  
241 +(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
242 +(% style="color:blue" %)**The following picture shows that the burning is successful**
243 +
244 +[[image:image-20220602105251-15.png]]
245 +
246 +
247 +
248 += 3.  LA66 USB LoRaWAN Adapter =
249 +
250 +
251 +== 3.1  Overview ==
252 +
253 +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.
254 +
255 +
256 +== 3.2  Features ==
257 +
258 +* LoRaWAN USB adapter base on LA66 LoRaWAN module
259 +* Ultra-long RF range
260 +* Support LoRaWAN v1.0.4 protocol
261 +* Support peer-to-peer protocol
262 +* TCXO crystal to ensure RF performance on low temperature
263 +* Spring RF antenna
264 +* Available in different frequency LoRaWAN frequency bands.
265 +* World-wide unique OTAA keys.
266 +* AT Command via UART-TTL interface
267 +* Firmware upgradable via UART interface
268 +
269 +
270 +== 3.3  Specification ==
271 +
272 +* CPU: 32-bit 48 MHz
273 +* Flash: 256KB
274 +* RAM: 64KB
275 +* Input Power Range: 5v
276 +* Frequency Range: 150 MHz ~~ 960 MHz
277 +* Maximum Power +22 dBm constant RF output
278 +* High sensitivity: -148 dBm
279 +* Temperature:
280 +** Storage: -55 ~~ +125℃
281 +** Operating: -40 ~~ +85℃
282 +* Humidity:
283 +** Storage: 5 ~~ 95% (Non-Condensing)
284 +** Operating: 10 ~~ 95% (Non-Condensing)
285 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
286 +* LoRa Rx current: <9 mA
287 +
288 +
289 +== 3.4  Pin Mapping & LED ==
290 +
291 +
292 +
293 +== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
294 +
295 +
296 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
297 +
298 +
299 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
300 +
301 +
302 +[[image:image-20220602171217-1.png||height="538" width="800"]]
303 +
304 +
305 +Open the serial port tool
306 +
307 +[[image:image-20220602161617-8.png]]
308 +
309 +[[image:image-20220602161718-9.png||height="457" width="800"]]
310 +
311 +
312 +
313 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
314 +
315 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
316 +
317 +
318 +[[image:image-20220602161935-10.png||height="498" width="800"]]
319 +
320 +
321 +
322 +(% style="color:blue" %)**3. See Uplink Command**
323 +
324 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
325 +
326 +example: AT+SENDB=01,02,8,05820802581ea0a5
327 +
328 +[[image:image-20220602162157-11.png||height="497" width="800"]]
329 +
330 +
331 +
332 +(% style="color:blue" %)**4. Check to see if TTN received the message**
333 +
334 +[[image:image-20220602162331-12.png||height="420" width="800"]]
335 +
336 +
337 +
338 +== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
339 +
340 +
341 +**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]]
342 +
343 +
344 +(% style="color:red" %)**Preconditions:**
345 +
346 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
347 +
348 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
349 +
350 +
351 +
352 +(% style="color:blue" %)**Steps for usage:**
353 +
354 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
355 +
356 +(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
357 +
358 +[[image:image-20220602115852-3.png||height="450" width="1187"]]
359 +
360 +
361 +
362 +== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
363 +
364 +
365 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
366 +
367 +
368 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
369 +
370 +[[image:image-20220602171233-2.png||height="538" width="800"]]
371 +
372 +
373 +
374 +(% style="color:blue" %)**2. Install Minicom in RPi.**
375 +
376 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
377 +
378 + (% style="background-color:yellow" %)**apt update**
379 +
380 + (% style="background-color:yellow" %)**apt install minicom**
381 +
382 +
383 +Use minicom to connect to the RPI's terminal
384 +
385 +[[image:image-20220602153146-3.png||height="439" width="500"]]
386 +
387 +
388 +
389 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
390 +
391 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
392 +
393 +
394 +[[image:image-20220602154928-5.png||height="436" width="500"]]
395 +
396 +
397 +
398 +(% style="color:blue" %)**4. Send Uplink message**
399 +
400 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
401 +
402 +example: AT+SENDB=01,02,8,05820802581ea0a5
403 +
404 +
405 +[[image:image-20220602160339-6.png||height="517" width="600"]]
406 +
407 +
408 +
409 +Check to see if TTN received the message
410 +
411 +[[image:image-20220602160627-7.png||height="369" width="800"]]
412 +
413 +
414 +
415 +== 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
416 +
417 +
418 +
419 +== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
420 +
421 +
422 +
423 +
424 += 4.  Order Info =
425 +
426 +
427 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
428 +
429 +
430 +(% style="color:blue" %)**XXX**(%%): The default frequency band
431 +
432 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
433 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
434 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
435 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
436 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
437 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
438 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
439 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
440 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
441 +
442 +
443 +
444 += 5.  Reference =
445 +
446 +* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
447 +
264 264  
image-20220715000242-1.png
Author
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