Last modified by Xiaoling on 2023/05/26 14:19
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From version < 87.9 >
edited by Xiaoling
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Summary

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Title
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1 -LA66 LoRaWAN Module
1 +LA66 LoRaWAN Shield User Manual
Content
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1 1  
2 2  
3 +**Table of Contents:**
4 +
3 3  {{toc/}}
4 4  
5 5  
6 6  
7 -= 1.  LA66 LoRaWAN Module =
8 8  
10 += 1.  LA66 LoRaWAN Shield =
9 9  
10 -== 1.1  What is LA66 LoRaWAN Module ==
11 11  
13 +== 1.1  Overview ==
12 12  
13 -(% 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.
14 14  
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.
16 +(((
17 +[[image:image-20220715000826-2.png||height="145" width="220"]]
18 +)))
16 16  
20 +(((
21 +
22 +)))
23 +
24 +(((
25 +(% style="color:blue" %)**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.
26 +)))
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 +)))
33 +
34 +(((
35 +(((
17 17  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 +)))
38 +)))
18 18  
40 +(((
41 +(((
19 19  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.
43 +)))
44 +)))
20 20  
46 +(((
47 +(((
21 21  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
49 +)))
50 +)))
22 22  
23 23  
53 +
24 24  == 1.2  Features ==
25 25  
26 -* Support LoRaWAN v1.0.4 protocol
27 -* Support peer-to-peer protocol
28 -* TCXO crystal to ensure RF performance on low temperature
29 -* SMD Antenna pad and i-pex antenna connector
30 -* Available in different frequency LoRaWAN frequency bands.
31 -* World-wide unique OTAA keys.
32 -* AT Command via UART-TTL interface
33 -* Firmware upgradable via UART interface
34 -* Ultra-long RF range
35 35  
36 -
37 -
38 -== 1.3  Specification ==
39 -
40 -* CPU: 32-bit 48 MHz
41 -* Flash: 256KB
42 -* RAM: 64KB
43 -* Input Power Range: 1.8v ~~ 3.7v
44 -* Power Consumption: < 4uA.
45 -* Frequency Range: 150 MHz ~~ 960 MHz
46 -* Maximum Power +22 dBm constant RF output
47 -* High sensitivity: -148 dBm
48 -* Temperature:
49 -** Storage: -55 ~~ +125℃
50 -** Operating: -40 ~~ +85℃
51 -* Humidity:
52 -** Storage: 5 ~~ 95% (Non-Condensing)
53 -** Operating: 10 ~~ 95% (Non-Condensing)
54 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
55 -* LoRa Rx current: <9 mA
56 -* I/O Voltage: 3.3v
57 -
58 -
59 -
60 -== 1.4  AT Command ==
61 -
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.
63 -
64 -
65 -== 1.5  Dimension ==
66 -
67 -[[image:image-20220517072526-1.png]]
68 -
69 -
70 -
71 -== 1.6  Pin Mapping ==
72 -
73 -
74 -[[image:image-20220523101537-1.png]]
75 -
76 -
77 -
78 -== 1.7  Land Pattern ==
79 -
80 -[[image:image-20220517072821-2.png]]
81 -
82 -
83 -
84 -= 2.  LA66 LoRaWAN Shield =
85 -
86 -
87 -== 2.1  Overview ==
88 -
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.
90 -
91 -
92 -== 2.2  Features ==
93 -
94 94  * Arduino Shield base on LA66 LoRaWAN module
95 -* Support LoRaWAN v1.0.4 protocol
58 +* Support LoRaWAN v1.0.3 protocol
96 96  * Support peer-to-peer protocol
97 97  * TCXO crystal to ensure RF performance on low temperature
98 98  * SMA connector
... ... @@ -104,8 +104,9 @@
104 104  
105 105  
106 106  
107 -== 2.3  Specification ==
70 +== 1.3  Specification ==
108 108  
72 +
109 109  * CPU: 32-bit 48 MHz
110 110  * Flash: 256KB
111 111  * RAM: 64KB
... ... @@ -126,305 +126,240 @@
126 126  
127 127  
128 128  
129 -== 2.4  Pin Mapping & LED ==
93 +== 1.4  Pin Mapping & LED ==
130 130  
131 131  
96 +[[image:image-20220817085048-1.png]]
132 132  
133 -== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
134 134  
135 135  
100 +~1. The LED lights up red when there is an upstream data packet
101 +2. When the network is successfully connected, the green light will be on for 5 seconds
102 +3. Purple light on when receiving downlink data packets
136 136  
137 -== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
138 138  
139 139  
106 +== 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
140 140  
141 -== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
142 142  
109 +**Show connection diagram：**
143 143  
144 144  
145 -== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
112 +[[image:image-20220723170210-2.png||height="908" width="681"]]
146 146  
147 147  
148 -=== 2.8.1  Items needed for update ===
149 149  
150 -1. LA66 LoRaWAN Shield
151 -1. Arduino
152 -1. USB TO TTL Adapter
116 +(% style="color:blue" %)**1.  open Arduino IDE**
153 153  
154 -[[image:image-20220602100052-2.png||height="385" width="600"]]
155 155  
119 +[[image:image-20220723170545-4.png]]
156 156  
157 -=== 2.8.2  Connection ===
158 158  
159 159  
160 -[[image:image-20220602101311-3.png||height="276" width="600"]]
123 +(% style="color:blue" %)**2.  Open project**
161 161  
162 162  
163 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
126 +LA66-LoRaWAN-shield-AT-command-via-Arduino-UNO source code link: [[https:~~/~~/www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0>>https://www.dropbox.com/sh/cx0pspkwu62pr97/AAAbKh2ioPdZfSDtdDpooYqha?dl=0]]
164 164  
165 -(% style="background-color:yellow" %)**GND  <-> GND
166 -TXD  <->  TXD
167 -RXD  <->  RXD**
128 +[[image:image-20220726135239-1.png]]
168 168  
169 169  
170 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
171 171  
172 -Connect USB TTL Adapter to PC after connecting the wires
132 +(% style="color:blue" %)**3.  Click the button marked 1 in the figure to compile, and after the compilation is complete, click the button marked 2 in the figure to upload**
173 173  
134 +[[image:image-20220726135356-2.png]]
174 174  
175 -[[image:image-20220602102240-4.png||height="304" width="600"]]
176 176  
177 177  
178 -=== 2.8.3  Upgrade steps ===
138 +(% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
179 179  
180 180  
181 -==== 1.  Switch SW1 to put in ISP position ====
141 +[[image:image-20220723172235-7.png||height="480" width="1027"]]
182 182  
183 183  
184 -[[image:image-20220602102824-5.png||height="306" width="600"]]
185 185  
145 +== 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
186 186  
187 187  
188 -==== 2.  Press the RST switch once ====
148 +(% style="color:blue" %)**1.  Open project**
189 189  
190 -[[image:image-20220602104701-12.png||height="285" width="600"]]
191 191  
151 +Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/0sjyncafa0gjv00/AACC2m1orov-QHRkvH8-ddCka?dl=0>>https://www.dropbox.com/sh/0sjyncafa0gjv00/AACC2m1orov-QHRkvH8-ddCka?dl=0]]
192 192  
193 193  
194 -==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
154 +[[image:image-20220723172502-8.png]]
195 195  
196 196  
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/]]**
198 198  
158 +(% style="color:blue" %)**2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
199 199  
200 -[[image:image-20220602103227-6.png]]
201 201  
161 +[[image:image-20220723172938-9.png||height="652" width="1050"]]
202 202  
203 -[[image:image-20220602103357-7.png]]
204 204  
205 205  
165 +== 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
206 206  
207 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
208 -(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
209 209  
168 +(% style="color:blue" %)**1.  Open project**
210 210  
211 -[[image:image-20220602103844-8.png]]
212 212  
171 +Log-Temperature-Sensor-and-send-data-to-TTN source code link: [[https:~~/~~/www.dropbox.com/sh/0aagmrpec1lxmva/AABMXWVMSHG9dK1_Zv_7xOmCa?dl=0>>https://www.dropbox.com/sh/0aagmrpec1lxmva/AABMXWVMSHG9dK1_Zv_7xOmCa?dl=0]]
213 213  
214 214  
215 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
216 -(% style="color:blue" %)**3. Select the bin file to burn**
174 +[[image:image-20220723173341-10.png||height="581" width="1014"]]
217 217  
218 218  
219 -[[image:image-20220602104144-9.png]]
220 220  
178 +(% style="color:blue" %)**2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
221 221  
222 -[[image:image-20220602104251-10.png]]
223 223  
181 +[[image:image-20220723173950-11.png||height="665" width="1012"]]
224 224  
225 -[[image:image-20220602104402-11.png]]
226 226  
227 227  
185 +(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
228 228  
229 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
230 -(% style="color:blue" %)**4. Click to start the download**
187 +For the usage of Node-RED, please refer to: [[http:~~/~~/8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/>>http://8.211.40.43:8080/xwiki/bin/view/Main/Node-RED/]]
231 231  
232 -[[image:image-20220602104923-13.png]]
189 +[[image:image-20220723175700-12.png||height="602" width="995"]]
233 233  
234 234  
235 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
236 -(% style="color:blue" %)**5. Check update process**
237 237  
193 +== 1.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
238 238  
239 -[[image:image-20220602104948-14.png]]
240 240  
196 +=== 1.8.1  Items needed for update ===
241 241  
242 242  
243 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
244 -(% style="color:blue" %)**The following picture shows that the burning is successful**
199 +1. LA66 LoRaWAN Shield
200 +1. Arduino
201 +1. USB TO TTL Adapter
245 245  
246 -[[image:image-20220602105251-15.png]]
203 +[[image:image-20220602100052-2.png||height="385" width="600"]]
247 247  
248 248  
249 249  
250 -= 3.  LA66 USB LoRaWAN Adapter =
207 +=== 1.8.2  Connection ===
251 251  
252 252  
253 -== 3.1  Overview ==
210 +[[image:image-20220602101311-3.png||height="276" width="600"]]
254 254  
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.
256 256  
213 +(((
214 +(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
215 +)))
257 257  
258 -== 3.2  Features ==
217 +(((
218 +(% style="background-color:yellow" %)**GND  <-> GND
219 +TXD  <->  TXD
220 +RXD  <->  RXD**
221 +)))
259 259  
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
270 270  
271 -== 3.3  Specification ==
224 +Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
272 272  
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
226 +Connect USB TTL Adapter to PC after connecting the wires
288 288  
289 -== 3.4  Pin Mapping & LED ==
290 290  
229 +[[image:image-20220602102240-4.png||height="304" width="600"]]
291 291  
292 292  
293 -== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
294 294  
233 +=== 1.8.3  Upgrade steps ===
295 295  
296 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
297 297  
298 298  
299 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
237 +==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
300 300  
301 301  
302 -[[image:image-20220602171217-1.png||height="538" width="800"]]
240 +[[image:image-20220602102824-5.png||height="306" width="600"]]
303 303  
304 304  
305 -Open the serial port tool
306 306  
307 -[[image:image-20220602161617-8.png]]
244 +==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
308 308  
309 -[[image:image-20220602161718-9.png||height="457" width="800"]]
310 310  
247 +[[image:image-20220817085447-1.png]]
311 311  
312 312  
313 -(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
314 314  
315 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
316 316  
252 +==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
317 317  
318 -[[image:image-20220602161935-10.png||height="498" width="800"]]
319 319  
255 +(((
256 +(% 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/]]**
257 +)))
320 320  
321 321  
322 -(% style="color:blue" %)**3. See Uplink Command**
260 +[[image:image-20220602103227-6.png]]
323 323  
324 -Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
325 325  
326 -example: AT+SENDB=01,02,8,05820802581ea0a5
263 +[[image:image-20220602103357-7.png]]
327 327  
328 -[[image:image-20220602162157-11.png||height="497" width="800"]]
329 329  
330 330  
267 +(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
268 +(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
331 331  
332 -(% style="color:blue" %)**4. Check to see if TTN received the message**
333 333  
334 -[[image:image-20220602162331-12.png||height="420" width="800"]]
271 +[[image:image-20220602103844-8.png]]
335 335  
336 336  
337 337  
338 -== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
275 +(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
276 +(% style="color:blue" %)**3. Select the bin file to burn**
339 339  
340 340  
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]]
279 +[[image:image-20220602104144-9.png]]
342 342  
343 343  
344 -(% style="color:red" %)**Preconditions:**
282 +[[image:image-20220602104251-10.png]]
345 345  
346 -(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
347 347  
348 -(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
285 +[[image:image-20220602104402-11.png]]
349 349  
350 350  
351 351  
352 -(% style="color:blue" %)**Steps for usage:**
289 +(% class="wikigeneratedid" id="HClicktostartthedownload" %)
290 +(% style="color:blue" %)**4. Click to start the download**
353 353  
354 -(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
292 +[[image:image-20220602104923-13.png]]
355 355  
356 -(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
357 357  
358 -[[image:image-20220602115852-3.png||height="450" width="1187"]]
359 359  
296 +(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
297 +(% style="color:blue" %)**5. Check update process**
360 360  
361 361  
362 -== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
300 +[[image:image-20220602104948-14.png]]
363 363  
364 364  
365 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
366 366  
304 +(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
305 +(% style="color:blue" %)**The following picture shows that the burning is successful**
367 367  
368 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
307 +[[image:image-20220602105251-15.png]]
369 369  
370 -[[image:image-20220602171233-2.png||height="538" width="800"]]
371 371  
372 372  
311 += 2.  FAQ =
373 373  
374 -(% style="color:blue" %)**2. Install Minicom in RPi.**
375 375  
376 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
314 +== 2.1  How to Compile Source Code for LA66? ==
377 377  
378 - (% style="background-color:yellow" %)**apt update**
379 379  
380 - (% style="background-color:yellow" %)**apt install minicom**
317 +Compile and Upload Code to ASR6601 Platform ：[[Instruction>>Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Module.Compile and Upload Code to ASR6601 Platform.WebHome]]
381 381  
382 382  
383 -Use minicom to connect to the RPI's terminal
384 384  
385 -[[image:image-20220602153146-3.png||height="439" width="500"]]
321 += 3.  Order Info =
386 386  
387 387  
324 +**Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
388 388  
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
391 391  
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 -
428 428  (% style="color:blue" %)**XXX**(%%): The default frequency band
429 429  
430 430  * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
... ... @@ -440,8 +440,9 @@
440 440  
441 441  
442 442  
443 -= 5.  Reference =
342 += 4.  Reference =
444 444  
445 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
446 446  
345 +* Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
346 +
447 447  
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