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Last modified by Xiaoling on 2023/09/19 09:20
From version 86.1
edited by Edwin Chen
on 2022/07/10 22:08
Change comment: There is no comment for this version
To version 162.2
edited by Xiaoling
on 2023/06/05 15:32
Change comment: There is no comment for this version

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Title
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1 -LA66 LoRaWAN Module
1 +LA66 LoRaWAN Module User Manual
Author
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1 -XWiki.Edwin
1 +XWiki.Xiaoling
Content
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1 -{{box cssClass="floatinginfobox" title="**Contents**"}}
2 -{{toc/}}
3 -{{/box}}
1 +
4 4  
5 -= LA66 LoRaWAN Module =
3 +**Table of Contents:**
6 6  
7 -== What is LA66 LoRaWAN Module ==
5 +{{toc/}}
8 8  
9 -(% 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.
10 10  
11 -(% 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.
12 12  
13 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
9 += 1.  LA66 LoRaWAN Module =
14 14  
15 -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.
11 +== 1.1  What is LA66 LoRaWAN Module ==
16 16  
17 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
18 18  
14 +(((
15 +(((
16 +[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
17 +)))
19 19  
20 -== Features ==
19 +(((
20 +
21 +)))
21 21  
22 -* Support LoRaWAN v1.0.4 protocol
23 -* Support peer-to-peer protocol
24 -* TCXO crystal to ensure RF performance on low temperature
25 -* SMD Antenna pad and i-pex antenna connector
26 -* Available in different frequency LoRaWAN frequency bands.
27 -* World-wide unique OTAA keys.
28 -* AT Command via UART-TTL interface
29 -* Firmware upgradable via UART interface
30 -* Ultra-long RF range
23 +(((
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 +)))
31 31  
32 -== Specification ==
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 33  
34 -* CPU: 32-bit 48 MHz
35 -* Flash: 256KB
36 -* RAM: 64KB
37 -* Input Power Range: 1.8v ~~ 3.7v
38 -* Power Consumption: < 4uA.
39 -* Frequency Range: 150 MHz ~~ 960 MHz
40 -* Maximum Power +22 dBm constant RF output
41 -* High sensitivity: -148 dBm
42 -* Temperature:
43 -** Storage: -55 ~~ +125℃
44 -** Operating: -40 ~~ +85℃
45 -* Humidity:
46 -** Storage: 5 ~~ 95% (Non-Condensing)
47 -** Operating: 10 ~~ 95% (Non-Condensing)
48 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
49 -* LoRa Rx current: <9 mA
50 -* I/O Voltage: 3.3v
34 +(((
35 +(((
36 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 +)))
51 51  
52 -== AT Command ==
39 +(((
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 +)))
53 53  
54 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
44 +(((
45 +(((
46 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
47 +)))
48 +)))
55 55  
56 56  
57 -== Dimension ==
51 +== 1.2  Features ==
58 58  
59 -[[image:image-20220517072526-1.png]]
60 60  
61 -
62 -== Pin Mapping ==
63 -
64 -[[image:image-20220523101537-1.png]]
65 -
66 -== Land Pattern ==
67 -
68 -[[image:image-20220517072821-2.png]]
69 -
70 -
71 -
72 -
73 -= LA66 LoRaWAN Shield =
74 -
75 -== Overview ==
76 -
77 -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.
78 -
79 -
80 -== Features ==
81 -
82 -* Arduino Shield base on LA66 LoRaWAN module
83 -* Support LoRaWAN v1.0.4 protocol
54 +* Support LoRaWAN v1.0.3 protocol
84 84  * Support peer-to-peer protocol
85 85  * TCXO crystal to ensure RF performance on low temperature
86 -* SMA connector
57 +* SMD Antenna pad and i-pex antenna connector
87 87  * Available in different frequency LoRaWAN frequency bands.
88 88  * World-wide unique OTAA keys.
89 89  * AT Command via UART-TTL interface
... ... @@ -90,8 +90,9 @@
90 90  * Firmware upgradable via UART interface
91 91  * Ultra-long RF range
92 92  
93 -== Specification ==
64 +== 1.3  Specification ==
94 94  
66 +
95 95  * CPU: 32-bit 48 MHz
96 96  * Flash: 256KB
97 97  * RAM: 64KB
... ... @@ -110,271 +110,172 @@
110 110  * LoRa Rx current: <9 mA
111 111  * I/O Voltage: 3.3v
112 112  
113 -== Pin Mapping & LED ==
85 +== 1.4  AT Command ==
114 114  
115 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
116 116  
117 -== Example: Join TTN network and send an uplink message, get downlink message. ==
88 +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]].
118 118  
119 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
120 120  
121 -== Upgrade Firmware of LA66 LoRaWAN Shield ==
91 +== 1.5  Dimension ==
122 122  
123 -=== Items needed for update ===
124 124  
125 -1. LA66 LoRaWAN Shield
126 -1. Arduino
127 -1. USB TO TTL Adapter
94 +[[image:image-20220718094750-3.png]]
128 128  
129 -[[image:image-20220602100052-2.png||height="385" width="600"]]
130 130  
97 +== 1.6  Pin Mapping ==
131 131  
132 -=== Connection ===
99 +[[image:image-20220720111850-1.png]]
133 133  
134 -[[image:image-20220602101311-3.png||height="276" width="600"]]
135 135  
136 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  <-> (% style="color:blue" %)**USB TTL**(%%)
137 -**GND  <-> GND
138 -TXD  <-> TXD
139 -RXD  <-> RXD**
102 +== 1.7  Land Pattern ==
140 140  
141 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
142 142  
143 -Connect USB TTL Adapter to PC after connecting the wires
105 +[[image:image-20220517072821-2.png]]
144 144  
145 145  
146 -[[image:image-20220602102240-4.png||height="304" width="600"]]
108 += 2.  FAQ =
147 147  
110 +== 2.1  Where to find examples of how to use LA66? ==
148 148  
149 -=== Upgrade steps ===
150 150  
151 -==== Switch SW1 to put in ISP position ====
113 +(% class="wikigeneratedid" %)
114 +Below products are made by LA66. User can use their examples as reference:
152 152  
153 -[[image:image-20220602102824-5.png||height="306" width="600"]]
116 +* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
117 +* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
154 154  
119 +== 2.2  How to Compile Source Code for LA66? ==
155 155  
156 -==== Press the RST switch once ====
157 157  
158 -[[image:image-20220602104701-12.png||height="285" width="600"]]
122 +Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
159 159  
160 160  
161 -==== Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
125 +== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
162 162  
163 -**~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/]]**
164 164  
165 -[[image:image-20220602103227-6.png]]
128 +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.
166 166  
167 -[[image:image-20220602103357-7.png]]
168 168  
131 +== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
169 169  
170 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
171 -**2. Select the COM port corresponding to USB TTL**
172 172  
173 -[[image:image-20220602103844-8.png]]
134 +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]]
174 174  
175 175  
176 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
177 -**3. Select the bin file to burn**
137 +== 2.5 How can i use J-LInk to debug LA66? ==
178 178  
179 -[[image:image-20220602104144-9.png]]
180 180  
181 -[[image:image-20220602104251-10.png]]
140 +(% style="color:#037691" %)**The steps are as follows:**
182 182  
183 -[[image:image-20220602104402-11.png]]
184 184  
143 +(% style="color:blue" %)**1. Install J-Link software from**
185 185  
186 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
187 -**4. Click to start the download**
145 +[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
188 188  
189 -[[image:image-20220602104923-13.png]]
190 190  
148 +(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
191 191  
192 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
193 -**5. Check update process**
194 194  
195 -[[image:image-20220602104948-14.png]]
151 +[[image:image-20230605151850-1.png]]
196 196  
197 197  
198 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
199 -**The following picture shows that the burning is successful**
154 +[[image:image-20230605151850-2.png]]
200 200  
201 -[[image:image-20220602105251-15.png]]
202 202  
157 +(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
203 203  
204 -
159 +**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
205 205  
206 -= LA66 USB LoRaWAN Adapter =
161 +**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
207 207  
208 -== Overview ==
163 +**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
209 209  
210 -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.
165 +**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
211 211  
167 +[[image:image-20230605151850-3.png||height="629" width="1182"]]
212 212  
213 -== Features ==
169 +(% style="display:none" %) (%%)
214 214  
215 -* LoRaWAN USB adapter base on LA66 LoRaWAN module
216 -* Ultra-long RF range
217 -* Support LoRaWAN v1.0.4 protocol
218 -* Support peer-to-peer protocol
219 -* TCXO crystal to ensure RF performance on low temperature
220 -* Spring RF antenna
221 -* Available in different frequency LoRaWAN frequency bands.
222 -* World-wide unique OTAA keys.
223 -* AT Command via UART-TTL interface
224 -* Firmware upgradable via UART interface
171 +(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
225 225  
226 -== Specification ==
173 +(% style="display:none" %) [[image:image-20230605151850-4.png]]
227 227  
228 -* CPU: 32-bit 48 MHz
229 -* Flash: 256KB
230 -* RAM: 64KB
231 -* Input Power Range: 5v
232 -* Frequency Range: 150 MHz ~~ 960 MHz
233 -* Maximum Power +22 dBm constant RF output
234 -* High sensitivity: -148 dBm
235 -* Temperature:
236 -** Storage: -55 ~~ +125℃
237 -** Operating: -40 ~~ +85℃
238 -* Humidity:
239 -** Storage: 5 ~~ 95% (Non-Condensing)
240 -** Operating: 10 ~~ 95% (Non-Condensing)
241 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
242 -* LoRa Rx current: <9 mA
243 243  
244 -== Pin Mapping & LED ==
176 +(% style="color:blue" %)**Add ASR6601 256KB Flash to Flash Download**
245 245  
246 -== Example Send & Get Messages via LoRaWAN in PC ==
178 +[[image:image-20230605152412-12.png]]
247 247  
248 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
249 249  
250 -~1. Connect the LA66 USB LoRaWAN adapter to PC
181 +[[image:image-20230605151851-6.png]]
251 251  
252 -[[image:image-20220602171217-1.png||height="538" width="800"]]
253 253  
254 -Open the serial port tool
184 +(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
255 255  
256 -[[image:image-20220602161617-8.png]]
186 +[[image:image-20230605151851-7.png]]
257 257  
258 -[[image:image-20220602161718-9.png||height="457" width="800"]]
188 +[[image:image-20230605151851-8.png]]
259 259  
260 260  
261 -2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.
191 +(% 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.**
262 262  
263 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
264 264  
265 -[[image:image-20220602161935-10.png||height="498" width="800"]]
194 +(% style="color:blue" %)**6. Comment the low power function in main.c.**
266 266  
267 267  
268 -3. See Uplink Command
197 +[[image:image-20230605151851-9.png]]
269 269  
270 -Command format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
271 271  
272 -example: AT+SENDB=01,02,8,05820802581ea0a5
200 +(% style="color:blue" %)**Click Debug mode to debug.**
273 273  
274 -[[image:image-20220602162157-11.png||height="497" width="800"]]
202 +[[image:image-20230605151851-10.png||height="293" width="1275"]]
275 275  
276 276  
277 -4. Check to see if TTN received the message
205 +[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
278 278  
279 -[[image:image-20220602162331-12.png||height="420" width="800"]]
207 +(% style="display:none" %) (%%)
280 280  
209 += 3.  Order Info =
281 281  
282 282  
283 -== Example:Send PC's CPU/RAM usage to TTN via python ==
212 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**
284 284  
285 -(% class="wikigeneratedid" id="HUsepythonasanexampleFF1A" %)
286 -**Use python as an example：**
214 +(% style="color:blue" %)**XXX**(%%): The default frequency band
287 287  
288 -(% class="wikigeneratedid" id="HPreconditions:" %)
289 -**Preconditions:**
216 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
217 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
218 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
219 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
220 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
221 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
222 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
223 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
224 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
290 290  
291 -1.LA66 USB LoRaWAN Adapter works fine
226 += 4.  FCC Statement =
292 292  
293 -2.LA66 USB LoRaWAN Adapter  is registered with TTN
294 294  
295 -(% class="wikigeneratedid" id="HStepsforusage" %)
296 -**Steps for usage**
229 +(% style="color:red" %)**FCC Caution:**
297 297  
298 -1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
231 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
299 299  
300 -2.Run the python script in PC and see the TTN
233 +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.
301 301  
302 -[[image:image-20220602115852-3.png||height="450" width="1187"]]
303 303  
236 +(% style="color:red" %)**IMPORTANT NOTE: **
304 304  
238 +(% 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:
305 305  
306 -== Example Send & Get Messages via LoRaWAN in RPi ==
240 +—Reorient or relocate the receiving antenna.
307 307  
308 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
242 +—Increase the separation between the equipment and receiver.
309 309  
310 -~1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi
244 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
311 311  
312 -[[image:image-20220602171233-2.png||height="538" width="800"]]
246 +—Consult the dealer or an experienced radio/TV technician for help.
313 313  
314 314  
315 -2. Install Minicom in RPi.
249 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
316 316  
317 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
251 +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.
318 318  
319 -(% class="mark" %)apt update
320 -
321 -(% class="mark" %)apt install minicom
322 -
323 -
324 -Use minicom to connect to the RPI's terminal
325 -
326 -[[image:image-20220602153146-3.png||height="439" width="500"]]
327 -
328 -
329 -3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.
330 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
331 -
332 -[[image:image-20220602154928-5.png||height="436" width="500"]]
333 -
334 -
335 -4. Send Uplink message
336 -
337 -Format: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
338 -
339 -example: AT+SENDB=01,02,8,05820802581ea0a5
340 -
341 -[[image:image-20220602160339-6.png||height="517" width="600"]]
342 -
343 -Check to see if TTN received the message
344 -
345 -[[image:image-20220602160627-7.png||height="369" width="800"]]
346 -
347 -
348 -
349 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
350 -
351 -
352 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
353 -
354 -
355 -
356 -= Order Info =
357 -
358 -Part Number:
359 -
360 -**LA66-XXX**, **LA66-LoRaWAN-Shield-XXX** or **LA66-USB-LoRaWAN-Adapter-XXX**
361 -
362 -**XXX**: The default frequency band
363 -
364 -* **AS923**: LoRaWAN AS923 band
365 -* **AU915**: LoRaWAN AU915 band
366 -* **EU433**: LoRaWAN EU433 band
367 -* **EU868**: LoRaWAN EU868 band
368 -* **KR920**: LoRaWAN KR920 band
369 -* **US915**: LoRaWAN US915 band
370 -* **IN865**: LoRaWAN IN865 band
371 -* **CN470**: LoRaWAN CN470 band
372 -* **PP**: Peer to Peer LoRa Protocol
373 -
374 -
375 -
376 -= Reference =
377 -
378 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
379 -
380 380  
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