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Last modified by Xiaoling on 2023/09/19 09:20
From version 162.2
edited by Xiaoling
on 2023/06/05 15:32
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To version 87.7
edited by Xiaoling
on 2022/07/13 10:00
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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
... ... @@ -61,9 +61,10 @@
61 61  * Firmware upgradable via UART interface
62 62  * Ultra-long RF range
63 63  
64 -== 1.3  Specification ==
65 65  
66 66  
38 +== 1.3  Specification ==
39 +
67 67  * CPU: 32-bit 48 MHz
68 68  * Flash: 256KB
69 69  * RAM: 64KB
... ... @@ -82,172 +82,388 @@
82 82  * LoRa Rx current: <9 mA
83 83  * I/O Voltage: 3.3v
84 84  
85 -== 1.4  AT Command ==
86 86  
87 87  
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]].
60 +== 1.4  AT Command ==
89 89  
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.
90 90  
64 +
91 91  == 1.5  Dimension ==
92 92  
67 +[[image:image-20220517072526-1.png]]
93 93  
94 -[[image:image-20220718094750-3.png]]
95 95  
96 96  
97 97  == 1.6  Pin Mapping ==
98 98  
99 -[[image:image-20220720111850-1.png]]
100 100  
74 +[[image:image-20220523101537-1.png]]
101 101  
102 -== 1.7  Land Pattern ==
103 103  
104 104  
78 +== 1.7  Land Pattern ==
79 +
105 105  [[image:image-20220517072821-2.png]]
106 106  
107 107  
108 -= 2.  FAQ =
109 109  
110 -== 2.1  Where to find examples of how to use LA66? ==
84 += 2.  LA66 LoRaWAN Shield =
111 111  
112 112  
113 -(% class="wikigeneratedid" %)
114 -Below products are made by LA66. User can use their examples as reference:
87 +== 2.1  Overview ==
115 115  
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]]
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.
118 118  
119 -== 2.2  How to Compile Source Code for LA66? ==
120 120  
92 +== 2.2  Features ==
121 121  
122 -Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
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  
105 +== 2.3  Specification ==
124 124  
125 -== 2.3  Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
107 +* CPU: 32-bit 48 MHz
108 +* Flash: 256KB
109 +* RAM: 64KB
110 +* Input Power Range: 1.8v ~~ 3.7v
111 +* Power Consumption: < 4uA.
112 +* Frequency Range: 150 MHz ~~ 960 MHz
113 +* Maximum Power +22 dBm constant RF output
114 +* High sensitivity: -148 dBm
115 +* Temperature:
116 +** Storage: -55 ~~ +125℃
117 +** Operating: -40 ~~ +85℃
118 +* Humidity:
119 +** Storage: 5 ~~ 95% (Non-Condensing)
120 +** Operating: 10 ~~ 95% (Non-Condensing)
121 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
122 +* LoRa Rx current: <9 mA
123 +* I/O Voltage: 3.3v
126 126  
125 +== 2.4  Pin Mapping & LED ==
127 127  
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.
129 129  
130 130  
131 -== 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. ==
132 132  
133 133  
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]]
135 135  
133 +== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
136 136  
137 -== 2.5 How can i use J-LInk to debug LA66? ==
138 138  
139 139  
140 -(% 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. ==
141 141  
142 142  
143 -(% style="color:blue" %)**1. Install J-Link software from**
144 144  
145 -[[https:~~/~~/www.segger.com/downloads/jlink/>>url:https://www.segger.com/downloads/jlink/]]
141 +== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
146 146  
147 147  
148 -(% style="color:blue" %)**2. Expose PA6 / PA7 / RSTN of LA66.**
144 +=== 2.8.1  Items needed for update ===
149 149  
146 +1. LA66 LoRaWAN Shield
147 +1. Arduino
148 +1. USB TO TTL Adapter
150 150  
151 -[[image:image-20230605151850-1.png]]
150 +[[image:image-20220602100052-2.png||height="385" width="600"]]
152 152  
153 153  
154 -[[image:image-20230605151850-2.png]]
153 +=== 2.8.2  Connection ===
155 155  
156 156  
157 -(% 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"]]
158 158  
159 -**LA66 PA6 < ~-~- > JLINK SWDIO (Pin 7)**
160 160  
161 -**LA66 PA7 < ~-~- > JLINK SWCLK (Pin 9)**
159 +(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
162 162  
163 -**LA66 RSTN < ~-~- > JLINK RESET (Pin 15)**
164 164  
165 -**LA66 GND  < ~-~- > JLINK GND (Pin 8)**
162 +(% style="background-color:yellow" %)**GND  <-> GND
163 +TXD  <->  TXD
164 +RXD  <->  RXD**
166 166  
167 -[[image:image-20230605151850-3.png||height="629" width="1182"]]
168 168  
169 -(% style="display:none" %) (%%)
167 +Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
170 170  
171 -(% style="color:blue" %)**4. Copy \SN50v3\tools\FLM\ASR6601.FLM to \Keil\ARM\ Flash\**
169 +Connect USB TTL Adapter to PC after connecting the wires
172 172  
173 -(% style="display:none" %) [[image:image-20230605151850-4.png]]
174 174  
172 +[[image:image-20220602102240-4.png||height="304" width="600"]]
175 175  
176 -(% style="color:blue" %)**Add ASR6601 256KB Flash to Flash Download**
177 177  
178 -[[image:image-20230605152412-12.png]]
175 +=== 2.8.3  Upgrade steps ===
179 179  
180 180  
181 -[[image:image-20230605151851-6.png]]
178 +==== 1.  Switch SW1 to put in ISP position ====
182 182  
183 183  
184 -(% style="color:blue" %)**5. Modify \SN50v3\Projects\Applications\DRAGINO-LRWAN-AT\cfg\gcc.ld, to 0x08000000.**
181 +[[image:image-20220602102824-5.png||height="306" width="600"]]
185 185  
186 -[[image:image-20230605151851-7.png]]
187 187  
188 -[[image:image-20230605151851-8.png]]
184 +==== 2.  Press the RST switch once ====
189 189  
186 +[[image:image-20220602104701-12.png||height="285" width="600"]]
190 190  
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.**
192 192  
189 +==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
193 193  
194 -(% style="color:blue" %)**6. Comment the low power function in main.c.**
195 195  
192 +(% 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/]]**
196 196  
197 -[[image:image-20230605151851-9.png]]
198 198  
195 +[[image:image-20220602103227-6.png]]
199 199  
200 -(% style="color:blue" %)**Click Debug mode to debug.**
201 201  
202 -[[image:image-20230605151851-10.png||height="293" width="1275"]]
198 +[[image:image-20220602103357-7.png]]
203 203  
204 204  
205 -[[image:image-20230605151851-11.png||height="739" width="1275"]](% style="display:none" %)
206 206  
207 -(% style="display:none" %) (%%)
202 +(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
203 +(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
208 208  
209 -= 3.  Order Info =
210 210  
206 +[[image:image-20220602103844-8.png]]
211 211  
212 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**
213 213  
214 -(% style="color:blue" %)**XXX**(%%): The default frequency band
215 215  
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
210 +(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
211 +(% style="color:blue" %)**3. Select the bin file to burn**
225 225  
226 -= 4.  FCC Statement =
227 227  
214 +[[image:image-20220602104144-9.png]]
228 228  
229 -(% style="color:red" %)**FCC Caution:**
230 230  
231 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
217 +[[image:image-20220602104251-10.png]]
232 232  
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.
234 234  
220 +[[image:image-20220602104402-11.png]]
235 235  
236 -(% style="color:red" %)**IMPORTANT NOTE: **
237 237  
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:
239 239  
240 -—Reorient or relocate the receiving antenna.
224 +(% class="wikigeneratedid" id="HClicktostartthedownload" %)
225 +(% style="color:blue" %)**4. Click to start the download**
241 241  
242 -—Increase the separation between the equipment and receiver.
227 +[[image:image-20220602104923-13.png]]
243 243  
244 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
245 245  
246 -—Consult the dealer or an experienced radio/TV technician for help.
230 +(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
231 +(% style="color:blue" %)**5. Check update process**
247 247  
248 248  
249 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
234 +[[image:image-20220602104948-14.png]]
250 250  
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.
252 252  
237 +
238 +(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
239 +(% style="color:blue" %)**The following picture shows that the burning is successful**
240 +
241 +[[image:image-20220602105251-15.png]]
242 +
243 +
244 +
245 += 3.  LA66 USB LoRaWAN Adapter =
246 +
247 +
248 +== 3.1  Overview ==
249 +
250 +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.
251 +
252 +
253 +== 3.2  Features ==
254 +
255 +* LoRaWAN USB adapter base on LA66 LoRaWAN module
256 +* Ultra-long RF range
257 +* Support LoRaWAN v1.0.4 protocol
258 +* Support peer-to-peer protocol
259 +* TCXO crystal to ensure RF performance on low temperature
260 +* Spring RF antenna
261 +* Available in different frequency LoRaWAN frequency bands.
262 +* World-wide unique OTAA keys.
263 +* AT Command via UART-TTL interface
264 +* Firmware upgradable via UART interface
265 +
266 +== 3.3  Specification ==
267 +
268 +* CPU: 32-bit 48 MHz
269 +* Flash: 256KB
270 +* RAM: 64KB
271 +* Input Power Range: 5v
272 +* Frequency Range: 150 MHz ~~ 960 MHz
273 +* Maximum Power +22 dBm constant RF output
274 +* High sensitivity: -148 dBm
275 +* Temperature:
276 +** Storage: -55 ~~ +125℃
277 +** Operating: -40 ~~ +85℃
278 +* Humidity:
279 +** Storage: 5 ~~ 95% (Non-Condensing)
280 +** Operating: 10 ~~ 95% (Non-Condensing)
281 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
282 +* LoRa Rx current: <9 mA
283 +
284 +== 3.4  Pin Mapping & LED ==
285 +
286 +
287 +
288 +== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
289 +
290 +
291 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
292 +
293 +
294 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
295 +
296 +
297 +[[image:image-20220602171217-1.png||height="538" width="800"]]
298 +
299 +
300 +Open the serial port tool
301 +
302 +[[image:image-20220602161617-8.png]]
303 +
304 +[[image:image-20220602161718-9.png||height="457" width="800"]]
305 +
306 +
307 +
308 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
309 +
310 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
311 +
312 +
313 +[[image:image-20220602161935-10.png||height="498" width="800"]]
314 +
315 +
316 +
317 +(% style="color:blue" %)**3. See Uplink Command**
318 +
319 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
320 +
321 +example: AT+SENDB=01,02,8,05820802581ea0a5
322 +
323 +[[image:image-20220602162157-11.png||height="497" width="800"]]
324 +
325 +
326 +
327 +(% style="color:blue" %)**4. Check to see if TTN received the message**
328 +
329 +[[image:image-20220602162331-12.png||height="420" width="800"]]
330 +
331 +
332 +
333 +== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
334 +
335 +
336 +**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]]
337 +
338 +
339 +(% style="color:red" %)**Preconditions:**
340 +
341 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
342 +
343 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
344 +
345 +
346 +
347 +(% style="color:blue" %)**Steps for usage:**
348 +
349 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
350 +
351 +(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
352 +
353 +[[image:image-20220602115852-3.png||height="450" width="1187"]]
354 +
355 +
356 +
357 +== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
358 +
359 +
360 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
361 +
362 +
363 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
364 +
365 +[[image:image-20220602171233-2.png||height="538" width="800"]]
366 +
367 +
368 +
369 +(% style="color:blue" %)**2. Install Minicom in RPi.**
370 +
371 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
372 +
373 + (% style="background-color:yellow" %)**apt update**
374 +
375 + (% style="background-color:yellow" %)**apt install minicom**
376 +
377 +
378 +Use minicom to connect to the RPI's terminal
379 +
380 +[[image:image-20220602153146-3.png||height="439" width="500"]]
381 +
382 +
383 +
384 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**(%%)
385 +(% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network
386 +
387 +[[image:image-20220602154928-5.png||height="436" width="500"]]
388 +
389 +
390 +
391 +(% style="color:blue" %)**4. Send Uplink message**
392 +
393 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
394 +
395 +example: AT+SENDB=01,02,8,05820802581ea0a5
396 +
397 +
398 +[[image:image-20220602160339-6.png||height="517" width="600"]]
399 +
400 +
401 +
402 +Check to see if TTN received the message
403 +
404 +[[image:image-20220602160627-7.png||height="369" width="800"]]
405 +
406 +
407 +
408 +== 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
409 +
410 +
411 +
412 +== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
413 +
414 +
415 +
416 +
417 += 4.  Order Info =
418 +
419 +
420 +**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
421 +
422 +
423 +(% style="color:blue" %)**XXX**(%%): The default frequency band
424 +
425 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
426 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
427 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
428 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
429 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
430 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
431 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
432 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
433 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
434 +
435 +
436 +
437 +
438 += 5.  Reference =
439 +
440 +* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
441 +
253 253  
image-20220715000242-1.png
Author
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