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Last modified by Xiaoling on 2023/09/19 09:20
From version 162.5
edited by Xiaoling
on 2023/09/18 16:35
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To version 87.9
edited by Xiaoling
on 2022/07/13 10:02
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
... ... @@ -62,9 +62,9 @@
62 62  * Ultra-long RF range
63 63  
64 64  
37 +
65 65  == 1.3  Specification ==
66 66  
67 -
68 68  * CPU: 32-bit 48 MHz
69 69  * Flash: 256KB
70 70  * RAM: 64KB
... ... @@ -84,176 +84,392 @@
84 84  * I/O Voltage: 3.3v
85 85  
86 86  
59 +
87 87  == 1.4  AT Command ==
88 88  
62 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
89 89  
90 -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/scl/fi/s3i58dyuh2zpwxfzcks9d/Accuhealth-LA66-AT-commands.pdf?rlkey=059co9isdbddl1h1lb5gy93oy&dl=0]].
91 91  
92 92  == 1.5  Dimension ==
93 93  
67 +[[image:image-20220517072526-1.png]]
94 94  
95 -[[image:image-20220718094750-3.png]]
96 96  
97 97  
98 98  == 1.6  Pin Mapping ==
99 99  
100 -[[image:image-20220720111850-1.png]]
101 101  
74 +[[image:image-20220523101537-1.png]]
102 102  
103 -== 1.7  Land Pattern ==
104 104  
105 105  
78 +== 1.7  Land Pattern ==
79 +
106 106  [[image:image-20220517072821-2.png]]
107 107  
108 108  
109 -= 2.  FAQ =
110 110  
111 -== 2.1  Where to find examples of how to use LA66? ==
84 += 2.  LA66 LoRaWAN Shield =
112 112  
113 113  
114 -(% class="wikigeneratedid" %)
115 -Below products are made by LA66. User can use their examples as reference:
87 +== 2.1  Overview ==
116 116  
117 -* [[LA66 Shield for Arduino>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.WebHome]]
118 -* [[LA66 USB Adapter>>doc:Main.User Manual for LoRaWAN End Nodes.LA66 USB LoRaWAN Adapter User Manual.WebHome]]
89 +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.
119 119  
120 120  
121 -== 2.2  How to Compile Source Code for LA66? ==
92 +== 2.2  Features ==
122 122  
94 +* Arduino Shield base on LA66 LoRaWAN module
95 +* Support LoRaWAN v1.0.4 protocol
96 +* Support peer-to-peer protocol
97 +* TCXO crystal to ensure RF performance on low temperature
98 +* SMA connector
99 +* Available in different frequency LoRaWAN frequency bands.
100 +* World-wide unique OTAA keys.
101 +* AT Command via UART-TTL interface
102 +* Firmware upgradable via UART interface
103 +* Ultra-long RF range
123 123  
124 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
125 125  
126 126  
127 -== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
107 +== 2.3  Specification ==
128 128  
109 +* CPU: 32-bit 48 MHz
110 +* Flash: 256KB
111 +* RAM: 64KB
112 +* Input Power Range: 1.8v ~~ 3.7v
113 +* Power Consumption: < 4uA.
114 +* Frequency Range: 150 MHz ~~ 960 MHz
115 +* Maximum Power +22 dBm constant RF output
116 +* High sensitivity: -148 dBm
117 +* Temperature:
118 +** Storage: -55 ~~ +125℃
119 +** Operating: -40 ~~ +85℃
120 +* Humidity:
121 +** Storage: 5 ~~ 95% (Non-Condensing)
122 +** Operating: 10 ~~ 95% (Non-Condensing)
123 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
124 +* LoRa Rx current: <9 mA
125 +* I/O Voltage: 3.3v
129 129  
130 -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.
131 131  
132 132  
133 -== 2.4  Where to find Peer-to-Peer firmware of LA66? ==
129 +== 2.4  Pin Mapping & LED ==
134 134  
135 135  
136 -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]]
137 137  
133 +== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
138 138  
139 -== 2.5 How can i use J-LInk to debug LA66? ==
140 140  
141 141  
142 -(% style="color:#037691" %)**The steps are as follows:**
137 +== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
143 143  
144 144  
145 -(% style="color:blue" %)**1. Install J-Link software from**
146 146  
147 -[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
141 +== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
148 148  
149 149  
150 -(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
151 151  
145 +== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
152 152  
153 -[[image:image-20230605151850-1.png||height="676" width="640"]]
154 154  
148 +=== 2.8.1  Items needed for update ===
155 155  
156 -[[image:image-20230605151850-2.png]]
150 +1. LA66 LoRaWAN Shield
151 +1. Arduino
152 +1. USB TO TTL Adapter
157 157  
158 -(% style="display:none" %) (%%)
154 +[[image:image-20220602100052-2.png||height="385" width="600"]]
159 159  
160 -(% style="color:blue" %)**3. Connect JLINK, and switch mother board SW1 to ISP. Wire connection as below:**
161 161  
157 +=== 2.8.2  Connection ===
162 162  
163 -**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
164 164  
165 -**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
160 +[[image:image-20220602101311-3.png||height="276" width="600"]]
166 166  
167 -**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
168 168  
169 -**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
163 +(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
170 170  
171 -[[image:image-20230605151850-3.png||height="629" width="1182"]]
165 +(% style="background-color:yellow" %)**GND  <-> GND
166 +TXD  <->  TXD
167 +RXD  <->  RXD**
172 172  
173 -(% style="display:none" %) (%%)
174 174  
175 -(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
170 +Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
176 176  
177 -(% style="display:none" %) [[image:image-20230605151850-4.png]]
172 +Connect USB TTL Adapter to PC after connecting the wires
178 178  
179 179  
180 -**Add ASR6601 256KB Flash to Flash Download**
175 +[[image:image-20220602102240-4.png||height="304" width="600"]]
181 181  
182 -[[image:image-20230605152412-12.png]]
183 183  
178 +=== 2.8.3  Upgrade steps ===
184 184  
185 -[[image:image-20230605151851-6.png]]
186 186  
181 +==== 1.  Switch SW1 to put in ISP position ====
187 187  
188 -(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
189 189  
184 +[[image:image-20220602102824-5.png||height="306" width="600"]]
190 190  
191 -[[image:image-20230605151851-7.png]]
192 192  
193 -[[image:image-20230605151851-8.png]]
194 194  
188 +==== 2.  Press the RST switch once ====
195 195  
196 -(% 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.**
190 +[[image:image-20220602104701-12.png||height="285" width="600"]]
197 197  
198 198  
199 -(% style="color:blue" %)**6. Comment the low power function in main.c.**
200 200  
194 +==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
201 201  
202 -[[image:image-20230605151851-9.png]]
203 203  
197 +(% 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/]]**
204 204  
205 -(% style="color:blue" %)**Click Debug mode to debug.**
206 206  
207 -[[image:image-20230605151851-10.png||height="293" width="1275"]]
200 +[[image:image-20220602103227-6.png]]
208 208  
209 209  
210 -[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
203 +[[image:image-20220602103357-7.png]]
211 211  
212 -(% style="display:none" %) (%%)
213 213  
214 -= 3.  Order Info =
215 215  
207 +(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
208 +(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
216 216  
217 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
218 218  
219 -(% style="color:blue" %)**XXX**(%%): The default frequency band
211 +[[image:image-20220602103844-8.png]]
220 220  
221 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
222 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
223 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
224 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
225 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
226 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
227 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
228 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
229 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
230 230  
231 231  
232 -= 4.  FCC Statement =
215 +(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
216 +(% style="color:blue" %)**3. Select the bin file to burn**
233 233  
234 234  
235 -(% style="color:red" %)**FCC Caution:**
219 +[[image:image-20220602104144-9.png]]
236 236  
237 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
238 238  
239 -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.
222 +[[image:image-20220602104251-10.png]]
240 240  
241 241  
242 -(% style="color:red" %)**IMPORTANT NOTE: **
225 +[[image:image-20220602104402-11.png]]
243 243  
244 -(% 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:
245 245  
246 -—Reorient or relocate the receiving antenna.
247 247  
248 -—Increase the separation between the equipment and receiver.
229 +(% class="wikigeneratedid" id="HClicktostartthedownload" %)
230 +(% style="color:blue" %)**4. Click to start the download**
249 249  
250 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
232 +[[image:image-20220602104923-13.png]]
251 251  
252 -—Consult the dealer or an experienced radio/TV technician for help.
253 253  
235 +(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
236 +(% style="color:blue" %)**5. Check update process**
254 254  
255 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
256 256  
257 -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.
239 +[[image:image-20220602104948-14.png]]
258 258  
241 +
242 +
243 +(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
244 +(% style="color:blue" %)**The following picture shows that the burning is successful**
245 +
246 +[[image:image-20220602105251-15.png]]
247 +
248 +
249 +
250 += 3.  LA66 USB LoRaWAN Adapter =
251 +
252 +
253 +== 3.1  Overview ==
254 +
255 +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.
256 +
257 +
258 +== 3.2  Features ==
259 +
260 +* LoRaWAN USB adapter base on LA66 LoRaWAN module
261 +* Ultra-long RF range
262 +* Support LoRaWAN v1.0.4 protocol
263 +* Support peer-to-peer protocol
264 +* TCXO crystal to ensure RF performance on low temperature
265 +* Spring RF antenna
266 +* Available in different frequency LoRaWAN frequency bands.
267 +* World-wide unique OTAA keys.
268 +* AT Command via UART-TTL interface
269 +* Firmware upgradable via UART interface
270 +
271 +== 3.3  Specification ==
272 +
273 +* CPU: 32-bit 48 MHz
274 +* Flash: 256KB
275 +* RAM: 64KB
276 +* Input Power Range: 5v
277 +* Frequency Range: 150 MHz ~~ 960 MHz
278 +* Maximum Power +22 dBm constant RF output
279 +* High sensitivity: -148 dBm
280 +* Temperature:
281 +** Storage: -55 ~~ +125℃
282 +** Operating: -40 ~~ +85℃
283 +* Humidity:
284 +** Storage: 5 ~~ 95% (Non-Condensing)
285 +** Operating: 10 ~~ 95% (Non-Condensing)
286 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
287 +* LoRa Rx current: <9 mA
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 +(% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
391 +
392 +[[image:image-20220602154928-5.png||height="436" width="500"]]
393 +
394 +
395 +
396 +(% style="color:blue" %)**4. Send Uplink message**
397 +
398 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
399 +
400 +example: AT+SENDB=01,02,8,05820802581ea0a5
401 +
402 +
403 +[[image:image-20220602160339-6.png||height="517" width="600"]]
404 +
405 +
406 +
407 +Check to see if TTN received the message
408 +
409 +[[image:image-20220602160627-7.png||height="369" width="800"]]
410 +
411 +
412 +
413 +== 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
414 +
415 +
416 +
417 +== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
418 +
419 +
420 +
421 +
422 += 4.  Order Info =
423 +
424 +
425 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
426 +
427 +
428 +(% style="color:blue" %)**XXX**(%%): The default frequency band
429 +
430 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
431 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
432 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
433 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
434 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
435 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
436 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
437 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
438 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
439 +
440 +
441 +
442 +
443 += 5.  Reference =
444 +
445 +* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
446 +
259 259  
image-20220715000242-1.png
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