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Last modified by Xiaoling on 2025/02/07 16:37
From version 134.4
edited by Xiaoling
on 2022/07/26 10:37
Change comment: There is no comment for this version
To version 180.1
edited by Mengting Qiu
on 2025/01/22 11:22
Change comment: There is no comment for this version

Summary

Details

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Title
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1 -LA66 LoRaWAN Module
1 +LA66 USB LoRaWAN Adapter User Manual
Author
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1 -XWiki.Xiaoling
1 +XWiki.ting
Content
... ... @@ -6,34 +6,25 @@
6 6  
7 7  
8 8  
9 -= 1.  LA66 LoRaWAN Module =
10 10  
11 11  
12 -== 1.1  What is LA66 LoRaWAN Module ==
11 += 1.  LA66 USB LoRaWAN Adapter =
13 13  
13 +== 1.1  Overview ==
14 14  
15 -(((
16 -(((
17 -[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 -)))
19 19  
20 -(((
21 -
22 -)))
16 +[[image:image-20220715001142-3.png||height="194" width="294"]][[image:image-20240101111030-2.png]]
23 23  
18 +
24 24  (((
25 -(% 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.
20 +(% style="color:blue" %)**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.
26 26  )))
27 -)))
28 28  
29 29  (((
30 -(((
31 31  (% 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.
32 32  )))
33 -)))
34 34  
35 35  (((
36 -(((
37 37  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
38 38  )))
39 39  
... ... @@ -40,38 +40,34 @@
40 40  (((
41 41  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.
42 42  )))
43 -)))
44 44  
45 45  (((
46 -(((
47 47  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 48  )))
49 -)))
50 50  
51 51  
52 -
53 53  == 1.2  Features ==
54 54  
55 -* Support LoRaWAN v1.0.4 protocol
42 +
43 +* LoRaWAN USB adapter base on LA66 LoRaWAN module
44 +* Ultra-long RF range
45 +* Support LoRaWAN v1.0.3 protocol
56 56  * Support peer-to-peer protocol
57 57  * TCXO crystal to ensure RF performance on low temperature
58 -* SMD Antenna pad and i-pex antenna connector
48 +* Spring RF antenna
59 59  * Available in different frequency LoRaWAN frequency bands.
60 60  * World-wide unique OTAA keys.
61 61  * AT Command via UART-TTL interface
62 62  * Firmware upgradable via UART interface
63 -* Ultra-long RF range
53 +* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
64 64  
65 -
66 -
67 -
68 68  == 1.3  Specification ==
69 69  
57 +
70 70  * CPU: 32-bit 48 MHz
71 71  * Flash: 256KB
72 72  * RAM: 64KB
73 -* Input Power Range: 1.8v ~~ 3.7v
74 -* Power Consumption: < 4uA.
61 +* Input Power Range: 5v
75 75  * Frequency Range: 150 MHz ~~ 960 MHz
76 76  * Maximum Power +22 dBm constant RF output
77 77  * High sensitivity: -148 dBm
... ... @@ -83,643 +83,459 @@
83 83  ** Operating: 10 ~~ 95% (Non-Condensing)
84 84  * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
85 85  * LoRa Rx current: <9 mA
86 -* I/O Voltage: 3.3v
87 87  
74 +== 1.4  Pin Mapping & LED ==
88 88  
89 89  
77 +[[image:image-20220813183239-3.png||height="526" width="662"]]
90 90  
91 -== 1.4  AT Command ==
92 92  
80 +== 1.5  Example: Send & Get Messages via LoRaWAN in PC ==
93 93  
94 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
95 95  
96 -
97 -
98 -== 1.5  Dimension ==
99 -
100 -[[image:image-20220718094750-3.png]]
101 -
102 -
103 -
104 -== 1.6  Pin Mapping ==
105 -
106 -[[image:image-20220720111850-1.png]]
107 -
108 -
109 -
110 -== 1.7  Land Pattern ==
111 -
112 -[[image:image-20220517072821-2.png]]
113 -
114 -
115 -
116 -= 2.  LA66 LoRaWAN Shield =
117 -
118 -
119 -== 2.1  Overview ==
120 -
121 -
122 122  (((
123 -[[image:image-20220715000826-2.png||height="145" width="220"]]
84 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
124 124  )))
125 125  
126 -(((
127 -
128 -)))
87 +(% style="color:blue" %)**1.  Connect the LA66 USB LoRaWAN adapter to PC**
129 129  
130 -(((
131 -(% 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.
132 -)))
89 +[[image:image-20220723100027-1.png]]
133 133  
134 -(((
135 -(((
136 -(% 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.
137 -)))
138 -)))
139 139  
140 -(((
141 -(((
142 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
143 -)))
144 -)))
92 +Open the serial port tool
145 145  
146 -(((
147 -(((
148 -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.
149 -)))
150 -)))
94 +[[image:image-20220602161617-8.png]]
151 151  
152 -(((
153 -(((
154 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
155 -)))
156 -)))
157 157  
97 +[[image:image-20220602161718-9.png||height="457" width="800"]]
158 158  
159 159  
160 -== 2.2  Features ==
100 +(% style="color:blue" %)**2.  Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
161 161  
162 -* Arduino Shield base on LA66 LoRaWAN module
163 -* Support LoRaWAN v1.0.4 protocol
164 -* Support peer-to-peer protocol
165 -* TCXO crystal to ensure RF performance on low temperature
166 -* SMA connector
167 -* Available in different frequency LoRaWAN frequency bands.
168 -* World-wide unique OTAA keys.
169 -* AT Command via UART-TTL interface
170 -* Firmware upgradable via UART interface
171 -* Ultra-long RF range
102 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
172 172  
173 -== 2.3  Specification ==
104 +[[image:image-20220602161935-10.png||height="498" width="800"]]
174 174  
175 -* CPU: 32-bit 48 MHz
176 -* Flash: 256KB
177 -* RAM: 64KB
178 -* Input Power Range: 1.8v ~~ 3.7v
179 -* Power Consumption: < 4uA.
180 -* Frequency Range: 150 MHz ~~ 960 MHz
181 -* Maximum Power +22 dBm constant RF output
182 -* High sensitivity: -148 dBm
183 -* Temperature:
184 -** Storage: -55 ~~ +125℃
185 -** Operating: -40 ~~ +85℃
186 -* Humidity:
187 -** Storage: 5 ~~ 95% (Non-Condensing)
188 -** Operating: 10 ~~ 95% (Non-Condensing)
189 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
190 -* LoRa Rx current: <9 mA
191 -* I/O Voltage: 3.3v
192 192  
193 -== 2.4  LED ==
107 +(% style="color:blue" %)**3.  See Uplink Command**
194 194  
195 -~1. The LED lights up red when there is an upstream data packet
196 -2. When the network is successfully connected, the green light will be on for 5 seconds
197 -3. Purple light on when receiving downlink data packets
109 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
198 198  
111 +example: AT+SENDB=01,02,8,05820802581ea0a5
199 199  
200 -== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
113 +[[image:image-20220602162157-11.png||height="497" width="800"]]
201 201  
202 202  
203 -**Show connection diagram：**
116 +(% style="color:blue" %)**4.  Check to see if TTN received the message**
204 204  
118 +[[image:image-20220817093644-1.png]]
205 205  
206 -[[image:image-20220723170210-2.png||height="908" width="681"]]
207 207  
121 +== 1.6  Example: How to join helium ==
208 208  
209 209  
210 -**1.  open Arduino IDE**
124 +(% style="color:blue" %)**1.  Create a new device.**
211 211  
126 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907165500-1.png?width=940&height=464&rev=1.1||alt="image-20220907165500-1.png"]]
212 212  
213 -[[image:image-20220723170545-4.png]]
214 214  
129 +(% style="color:blue" %)**2.  Save the device after filling in the necessary information.**
215 215  
131 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907165837-2.png?width=809&height=375&rev=1.1||alt="image-20220907165837-2.png" height="375" width="809"]]
216 216  
217 -**2.  Open project**
218 218  
134 +(% style="color:blue" %)**3.  Use AT commands.**
219 219  
220 -LA66-LoRaWAN-shield-AT-command-via-Arduino-UNO source code link: [[https:~~/~~/www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0>>https://www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0]]
136 +[[image:image-20220909151441-1.jpeg||height="695" width="521"]]
221 221  
222 -[[image:image-20220723170750-5.png||height="533" width="930"]]
223 223  
139 +(% style="color:blue" %)**4.  Use the serial port tool**
224 224  
141 +[[image:image-20220909151517-2.png||height="543" width="708"]]
225 225  
226 -**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**
227 227  
144 +(% style="color:blue" %)**5.  Use command AT+CFG to get device configuration**
228 228  
229 -[[image:image-20220723171228-6.png]]
146 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907170308-3.png?width=617&height=556&rev=1.1||alt="image-20220907170308-3.png" height="556" width="617"]]
230 230  
231 231  
149 +(% style="color:blue" %)**6.  Network successfully.**
232 232  
233 -**4.  After the upload is successful, open the serial port monitoring and send the AT command**
151 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907170436-4.png?rev=1.1||alt="image-20220907170436-4.png"]]
234 234  
235 235  
236 -[[image:image-20220723172235-7.png||height="480" width="1027"]]
154 +(% style="color:blue" %)**7.  Send uplink using command**
237 237  
156 +[[image:image-20220912085244-1.png]]
238 238  
158 +[[image:image-20220912085307-2.png]]
239 239  
240 -== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
241 241  
161 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220907170744-6.png?width=798&height=242&rev=1.1||alt="image-20220907170744-6.png" height="242" width="798"]]
242 242  
243 -**1.  Open project**
244 244  
164 +== 1.7  Example: Send PC's CPU/RAM usage to TTN via python ==
245 245  
246 -Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0>>https://www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0]]
247 247  
248 -[[image:image-20220723172502-8.png]]
167 +**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]]
249 249  
169 +(**Raspberry Pi example: **[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
250 250  
251 251  
252 -2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets
172 +(% style="color:red" %)**Preconditions:**
253 253  
174 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
254 254  
255 -[[image:image-20220723172938-9.png||height="652" width="1050"]]
176 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
256 256  
257 257  
179 +(% style="color:blue" %)**Steps for usage:**
258 258  
259 -== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
181 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
260 260  
183 +(% style="color:blue" %)**2.**(%%) Add [[decoder>>https://github.com/dragino/dragino-end-node-decoder/tree/main/LA66%20USB]] on TTN
261 261  
262 -**1.  Open project**
185 +(% style="color:blue" %)**3.**(%%) Run the python script in PC and see the TTN
263 263  
264 264  
265 -Log-Temperature-Sensor-and-send-data-to-TTN source code link: [[https:~~/~~/www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0>>https://www.dropbox.com/sh/trqitpm9adkupva/AAAE542NzwlHubIAIDxe6IWFa?dl=0]]
188 +[[image:image-20220602115852-3.png||height="450" width="1187"]]
266 266  
267 267  
268 -[[image:image-20220723173341-10.png||height="581" width="1014"]]
191 +== 1.8  Example: Send & Get Messages via LoRaWAN in RPi ==
269 269  
270 270  
194 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
271 271  
272 -**2.  Same steps as 2.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
196 +(% style="color:blue" %)**1.  Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
273 273  
198 +[[image:image-20220723100439-2.png]]
274 274  
275 -[[image:image-20220723173950-11.png||height="665" width="1012"]]
276 276  
201 +(% style="color:blue" %)**2.  Install Minicom in RPi.**
277 277  
203 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
278 278  
279 -**3.  Integration into Node-red via TTNV3**
205 + (% style="background-color:yellow" %)**apt update**
280 280  
281 -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/]]
207 + (% style="background-color:yellow" %)**apt install minicom**
282 282  
283 -[[image:image-20220723175700-12.png||height="602" width="995"]]
209 +Use minicom to connect to the RPI's terminal
284 284  
211 +[[image:image-20220602153146-3.png||height="439" width="500"]]
285 285  
286 286  
287 -== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
214 +(% style="color:blue" %)**3.  Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
288 288  
216 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
289 289  
290 -=== 2.8.1  Items needed for update ===
218 +[[image:image-20220602154928-5.png||height="436" width="500"]]
291 291  
292 292  
293 -1. LA66 LoRaWAN Shield
294 -1. Arduino
295 -1. USB TO TTL Adapter
221 +(% style="color:blue" %)**4.  Send Uplink message**
296 296  
297 -[[image:image-20220602100052-2.png||height="385" width="600"]]
223 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
298 298  
225 +example: AT+SENDB=01,02,8,05820802581ea0a5
299 299  
300 -=== 2.8.2  Connection ===
227 +[[image:image-20220602160339-6.png||height="517" width="600"]]
301 301  
302 302  
303 -[[image:image-20220602101311-3.png||height="276" width="600"]]
230 +Check to see if TTN received the message
304 304  
305 305  
306 -(((
307 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
308 -)))
233 +[[image:image-20220602160627-7.png||height="369" width="800"]]
309 309  
310 -(((
311 -(% style="background-color:yellow" %)**GND  <-> GND
312 -TXD  <->  TXD
313 -RXD  <->  RXD**
314 -)))
315 315  
236 +== 1.9  Example: Use of LA66 USB LoRaWAN Adapter and mobile APP ==
316 316  
317 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
238 +=== 1.9.1  Hardware and Software Connection ===
318 318  
319 -Connect USB TTL Adapter to PC after connecting the wires
320 320  
241 +(% class="wikigeneratedid" id="HOverviewFF1A" %)
242 +(% style="color:blue" %)**Overview：**
321 321  
322 -[[image:image-20220602102240-4.png||height="304" width="600"]]
323 -
324 -
325 -=== 2.8.3  Upgrade steps ===
326 -
327 -
328 -==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
329 -
330 -
331 -[[image:image-20220602102824-5.png||height="306" width="600"]]
332 -
333 -
334 -
335 -==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
336 -
337 -
338 -[[image:image-20220602104701-12.png||height="285" width="600"]]
339 -
340 -
341 -
342 -==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
343 -
344 -
345 345  (((
346 -(% 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/]]**
347 -)))
245 +DRAGINO-LA66-APP is an Open Source mobile APP for LA66 USB LoRaWAN Adapter. DRAGINO-LA66-APP has below features:
348 348  
349 -
350 -[[image:image-20220602103227-6.png]]
351 -
352 -
353 -[[image:image-20220602103357-7.png]]
354 -
355 -
356 -
357 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
358 -(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
359 -
360 -
361 -[[image:image-20220602103844-8.png]]
362 -
363 -
364 -
365 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
366 -(% style="color:blue" %)**3. Select the bin file to burn**
367 -
368 -
369 -[[image:image-20220602104144-9.png]]
370 -
371 -
372 -[[image:image-20220602104251-10.png]]
373 -
374 -
375 -[[image:image-20220602104402-11.png]]
376 -
377 -
378 -
379 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
380 -(% style="color:blue" %)**4. Click to start the download**
381 -
382 -[[image:image-20220602104923-13.png]]
383 -
384 -
385 -
386 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
387 -(% style="color:blue" %)**5. Check update process**
388 -
389 -
390 -[[image:image-20220602104948-14.png]]
391 -
392 -
393 -
394 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
395 -(% style="color:blue" %)**The following picture shows that the burning is successful**
396 -
397 -[[image:image-20220602105251-15.png]]
398 -
399 -
400 -
401 -= 3.  LA66 USB LoRaWAN Adapter =
402 -
403 -
404 -== 3.1  Overview ==
405 -
406 -
407 -[[image:image-20220715001142-3.png||height="145" width="220"]]
408 -
409 -
410 -(((
411 -(% style="color:blue" %)**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.
247 +* Send real-time location information of mobile phone to LoRaWAN network.
248 +* Check LoRaWAN network signal strengh.
249 +* Manually send messages to LoRaWAN network.
412 412  )))
413 413  
414 -(((
415 -(% 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.
416 -)))
417 417  
418 -(((
419 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
420 -)))
421 421  
422 -(((
423 -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.
424 -)))
254 +(% class="wikigeneratedid" id="HHardwareConnection:" %)
255 +(% style="color:blue" %)**Hardware Connection:**
425 425  
426 -(((
427 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
428 -)))
257 +A USB to Type-C adapter is needed to connect to a Mobile phone.
429 429  
259 +(% style="color:red" %)**Note: The package of LA66 USB adapter already includes this USB Type-C adapter.**
430 430  
261 +[[image:image-20220813174353-2.png||height="360" width="313"]]
431 431  
432 -== 3.2  Features ==
433 433  
434 -* LoRaWAN USB adapter base on LA66 LoRaWAN module
435 -* Ultra-long RF range
436 -* Support LoRaWAN v1.0.4 protocol
437 -* Support peer-to-peer protocol
438 -* TCXO crystal to ensure RF performance on low temperature
439 -* Spring RF antenna
440 -* Available in different frequency LoRaWAN frequency bands.
441 -* World-wide unique OTAA keys.
442 -* AT Command via UART-TTL interface
443 -* Firmware upgradable via UART interface
444 -* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
264 +(% class="wikigeneratedid" id="HDownloadandInstallApp:" %)
265 +(% style="color:blue" %)**Download and Install App:**
445 445  
267 +[[(% id="cke_bm_895007S" style="display:none" %)** **(%%)**Download Link for Android apk **>>https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]].  (Android Version Only)
446 446  
269 +[[image:image-20220813173738-1.png]]
447 447  
448 -== 3.3  Specification ==
449 449  
450 -* CPU: 32-bit 48 MHz
451 -* Flash: 256KB
452 -* RAM: 64KB
453 -* Input Power Range: 5v
454 -* Frequency Range: 150 MHz ~~ 960 MHz
455 -* Maximum Power +22 dBm constant RF output
456 -* High sensitivity: -148 dBm
457 -* Temperature:
458 -** Storage: -55 ~~ +125℃
459 -** Operating: -40 ~~ +85℃
460 -* Humidity:
461 -** Storage: 5 ~~ 95% (Non-Condensing)
462 -** Operating: 10 ~~ 95% (Non-Condensing)
463 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
464 -* LoRa Rx current: <9 mA
272 +(% class="wikigeneratedid" id="HUseofAPP:" %)
273 +(% style="color:blue" %)**Use of APP:**
465 465  
275 +Function and page introduction:
466 466  
277 +[[image:image-20220723113448-7.png||height="911" width="412"]]
467 467  
468 -== 3.4  Pin Mapping & LED ==
469 469  
280 +(% style="color:blue" %)**Block Explain:**
470 470  
282 +1.  Display LA66 USB LoRaWAN Module connection status
471 471  
472 -== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
284 +2.  Check and reconnect
473 473  
286 +3.  Turn send timestamps on or off
474 474  
475 -(((
476 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
477 -)))
288 +4.  Display LoRaWan connection status
478 478  
290 +5.  Check LoRaWan connection status
479 479  
480 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
292 +6.  The RSSI value of the node when the ACK is received
481 481  
294 +7.  Node's Signal Strength Icon
482 482  
483 -[[image:image-20220723100027-1.png]]
296 +8.  Configure Location Uplink Interval
484 484  
298 +9.  AT command input box
485 485  
486 -Open the serial port tool
300 +10.  Send Button:  Send input box info to LA66 USB Adapter
487 487  
488 -[[image:image-20220602161617-8.png]]
302 +11.  Output Log from LA66 USB adapter
489 489  
490 -[[image:image-20220602161718-9.png||height="457" width="800"]]
304 +12.  clear log button
491 491  
306 +13.  exit button
492 492  
493 493  
494 -(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
309 +LA66 USB LoRaWAN Module not connected:
495 495  
496 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
311 +[[image:image-20220723110520-5.png||height="677" width="508"]]
497 497  
498 498  
499 -[[image:image-20220602161935-10.png||height="498" width="800"]]
314 +Connect LA66 USB LoRaWAN Module:
500 500  
316 +[[image:image-20220723110626-6.png||height="681" width="511"]]
501 501  
502 502  
503 -(% style="color:blue" %)**3. See Uplink Command**
319 +=== 1.9.2  Send data to TTNv3 and plot location info in Node-Red ===
504 504  
505 -Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
506 506  
507 -example: AT+SENDB=01,02,8,05820802581ea0a5
322 +(% style="color:blue" %)**1.  Register LA66 USB LoRaWAN Module to TTNV3**
508 508  
509 -[[image:image-20220602162157-11.png||height="497" width="800"]]
324 +[[image:image-20220723134549-8.png]]
510 510  
511 511  
327 +(% style="color:blue" %)**2.  Open Node-RED,And import the JSON file to generate the flow**
512 512  
513 -(% style="color:blue" %)**4. Check to see if TTN received the message**
514 514  
515 -[[image:image-20220602162331-12.png||height="420" width="800"]]
330 +Sample JSON file please go to **[[this link>>https://www.dropbox.com/sh/zxwx16qb777uvkz/AABE_P8coGCQ4DAC8enH4bUya?dl=0]]** to download.
516 516  
332 +For the usage of Node-RED, please refer to: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Node-RED/>>http://wiki.dragino.com/xwiki/bin/view/Main/Node-RED/]]
517 517  
334 +After see LoRaWAN Online, walk around and the APP will keep sending location info to LoRaWAN server and then to the Node Red.
518 518  
519 -== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
336 +LA66~-~-node-red~-~-decoder:[[dragino-end-node-decoder/Node-RED at main · dragino/dragino-end-node-decoder · GitHub>>url:https://github.com/dragino/dragino-end-node-decoder/tree/main/Node-RED]]
520 520  
521 521  
522 -**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]]
339 +Example output in NodeRed is as below:
523 523  
524 -(**Raspberry Pi example: **[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_Raspberry%20Pi.py]])
341 +[[image:image-20220723144339-1.png]]
525 525  
526 -(% style="color:red" %)**Preconditions:**
527 527  
528 -(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
344 +== 1.10  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
529 529  
530 -(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
531 531  
347 +=== 1.10.1 Update method: For LA66 with bootloader ===
532 532  
533 533  
534 -(% style="color:blue" %)**Steps for usage:**
350 +* We ship the LA66 USB LoRaWAN Adapter with a boot loader by default, and the latest boot loader is V1.4. Users can download the new version of the boot loader by clicking on this [[link>>https://www.dropbox.com/scl/fo/ztlw35a9xbkomu71u31im/AFhmjtEOaipfBAFrpMCoWrI/LoRaWAN%20End%20Node/LA66%20LoRaWAN%20module/Firmware/OTA_Firmware?dl=0&rlkey=ojjcsw927eaow01dgooldq3nu&subfolder_nav_tracking=1]].
535 535  
536 -(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
352 +[[image:image-20250122110039-1.png||height="335" width="816"]]
537 537  
538 -(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
354 +(% style="color:red" %)**Note: Upgrading the boot loader requires using the upgrade method described in section 1.10.2.**
539 539  
540 -[[image:image-20220602115852-3.png||height="450" width="1187"]]
541 541  
357 +* For the bootloader V1.4, compared to V1.3, his role is to support OTA configuration for T68DL (D let Gino product model).
542 542  
359 +So if your LA66 doesn't need this feature, you can also just follow the below to upgrade the firmware instead of the bootloader:
543 543  
544 -== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
361 +**Firmware download（Please select withbootloader version）:**
545 545  
363 +[[Firmware - Dropbox>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AABJQUWNgt61Z567OcUf-sIya/LA66%20LoRaWAN%20module/Firmware?dl=0&subfolder_nav_tracking=1]]
546 546  
547 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
548 548  
366 +**Firmware update method:**
549 549  
550 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
368 +Please refer to this link
551 551  
552 -[[image:image-20220723100439-2.png]]
370 +[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H3.2.1UpdateafirmwareviaDraginoSensorManagerUtility.exe>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H3.2.1UpdateafirmwareviaDraginoSensorManagerUtility.exe]]
553 553  
554 554  
373 +=== 1.10.2 Update method: For LA66 without bootloader ===
555 555  
556 -(% style="color:blue" %)**2. Install Minicom in RPi.**
557 557  
558 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
376 +* Explanation:
559 559  
560 - (% style="background-color:yellow" %)**apt update**
378 +For LA66 without a bootloader, we can only burn a bootloader for it in the following way. Because using OTA_Tool to upgrade the firmware of LA66 this address is (% style="color:blue" %)**0x0800D000**(%%) by default, but our bootloader needs to be burned at address .
561 561  
562 - (% style="background-color:yellow" %)**apt install minicom**
380 +Therefore, you can use this method to download the firmware with the boot loader directly or upgrade your boot loader (address from (% style="color:blue" %)**0x08000000**(%%)).
563 563  
382 +**Firmware download（Download firmware with bootloader）:**
564 564  
565 -Use minicom to connect to the RPI's terminal
384 +[[Firmware - Dropbox>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AABJQUWNgt61Z567OcUf-sIya/LA66%20LoRaWAN%20module/Firmware?dl=0&subfolder_nav_tracking=1]]
566 566  
567 -[[image:image-20220602153146-3.png||height="439" width="500"]]
386 +[[image:image-20250122111651-2.png||height="243" width="682"]]
568 568  
569 569  
389 +* Upgrade Details：
570 570  
571 -(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
391 +The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method.
572 572  
573 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
393 +Just use the yellow jumper cap to short the BOOT corner and the RX corner, and then press the RESET button (without the jumper cap, you can directly short the BOOT corner and the RX corner with a wire to achieve the same effect).
574 574  
395 +(% style="color:red" %)**Notice: If upgrade via USB hub is not sucessful. try to connect to PC directly.**
575 575  
576 -[[image:image-20220602154928-5.png||height="436" width="500"]]
397 +[[image:image-20220723150132-2.png||height="514" width="506"]]
577 577  
578 578  
400 +(% style="color:blue" %)**For the LA66 USB LoRaWAN Adapter v1.2, the hardware design has eliminated the reset button, so the first step we need to use the DuPont wire to connect the BOOT pin to the RX pin. Second, connect the LA66 USB LoRaWAN Adapter v1.2 to a USB hub or computer USB port so that it will enter burn mode. Then follow the steps below to burn the firmware.**
579 579  
580 -(% style="color:blue" %)**4. Send Uplink message**
402 +(% style="color:red" %)**Note: After the successful burning need to unplug the LA66 USB LoRaWAN Adapter v1.2, and then reconnect the computer interface, so that it will exit the burning mode.**
581 581  
582 -Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
404 +[[image:image-20240401171313-1.jpeg||height="521" width="792"]]
583 583  
584 -example: AT+SENDB=01,02,8,05820802581ea0a5
585 585  
407 +(% class="wikigeneratedid" id="HOpentheUpgradetool28TremoProgrammer29inPCandUpgrade" %)
408 +(% style="color:blue" %)**Open the Upgrade tool (Tremo Programmer) in PC and Upgrade**
586 586  
587 -[[image:image-20220602160339-6.png||height="517" width="600"]]
410 +**1.  Software download link:  [[https:~~/~~/www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0>>url:https://www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0]]**
588 588  
412 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602103227-6.png?rev=1.1||alt="image-20220602103227-6.png"]]
589 589  
414 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602103357-7.png?rev=1.1||alt="image-20220602103357-7.png" height="486" width="390"]]
590 590  
591 -Check to see if TTN received the message
592 592  
593 -[[image:image-20220602160627-7.png||height="369" width="800"]]
417 +**2.  Select the COM port corresponding to USB TTL**
594 594  
419 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602103844-8.png?rev=1.1||alt="image-20220602103844-8.png" height="291" width="389"]]
595 595  
596 596  
597 -== 3.8  Example: Use of LA66 USB LoRaWAN Adapter and APP sample process and DRAGINO-LA66-APP. ==
422 +**3.  Select the bin file to burn**
598 598  
424 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104144-9.png?rev=1.1||alt="image-20220602104144-9.png" height="318" width="405"]]
599 599  
600 -=== 3.8.1 DRAGINO-LA66-APP ===
426 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104251-10.png?rev=1.1||alt="image-20220602104251-10.png" height="330" width="579"]]
601 601  
428 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104402-11.png?rev=1.1||alt="image-20220602104402-11.png" height="290" width="372"]]
602 602  
603 -[[image:image-20220723102027-3.png]]
604 604  
431 +**4.  Click to start the download**
605 605  
433 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104923-13.png?rev=1.1||alt="image-20220602104923-13.png" height="462" width="372"]]
606 606  
607 -==== (% style="color:blue" %)**Overview：**(%%) ====
608 608  
436 +**5.  Check update process**
609 609  
610 -DRAGINO-LA66-APP is a mobile APP for LA66 USB LoRaWAN Adapter and APP sample process. DRAGINO-LA66-APP can obtain the positioning information of the mobile phone and send it to the LoRaWAN platform through the LA66 USB LoRaWAN Adapter.
438 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602104948-14.png?rev=1.1||alt="image-20220602104948-14.png" height="483" width="386"]]
611 611  
612 -View the communication signal strength between the node and the gateway through the RSSI value（DRAGINO-LA66-APP currently only supports Android system）
613 613  
441 +**The following picture shows that the burning is successful**
614 614  
443 +[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LA66%20LoRaWAN%20Shield%20User%20Manual/WebHome/image-20220602105251-15.png?rev=1.1||alt="image-20220602105251-15.png" height="513" width="406"]]
615 615  
616 -==== (% style="color:blue" %)**Conditions of Use：**(%%) ====
617 617  
446 += 2.  FAQ =
618 618  
619 -Requires a type-c to USB adapter
448 +== 2.1  How to Compile Source Code for LA66? ==
620 620  
621 -[[image:image-20220723104754-4.png]]
622 622  
451 +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]]
623 623  
624 624  
625 -==== (% style="color:blue" %)**Use of APP:**(%%) ====
454 +== 2.2  Where to find Peer-to-Peer firmware of LA66? ==
626 626  
627 627  
628 -Function and page introduction
457 +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]]
629 629  
630 -[[image:image-20220723113448-7.png||height="1481" width="670"]]
631 631  
632 -1.Display LA66 USB LoRaWAN Module connection status
460 +== 2.3 My device keeps showing invalid credentials, the device goes into low power mode ==
633 633  
634 -2.Check and reconnect
635 635  
636 -3.Turn send timestamps on or off
463 +Set the AT+COMMAND: (% style="color:blue" %)**AT+UUID=666666666666**
637 637  
638 -4.Display LoRaWan connection status
639 639  
640 -5.Check LoRaWan connection status
466 +== 2.4 How to use external antenna via ipex connector? ==
641 641  
642 -6.The RSSI value of the node when the ACK is received
643 643  
644 -7.Node's Signal Strength Icon
469 +You need to remove the spring antenna first, and also remove the resistor and capacitor.
470 +Connect external antenna.
645 645  
646 -8.Set the packet sending interval of the node in seconds
472 +[[image:image-20231129155939-1.png||height="529" width="397"]]
647 647  
648 -9.AT command input box
649 649  
650 -10.Send AT command button
475 +2.5
651 651  
652 -11.Node log box
653 653  
654 -12.clear log button
478 += 3.  Order Info =
655 655  
656 -13.exit button
657 657  
481 +**Part Number:**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
658 658  
659 -LA66 USB LoRaWAN Module not connected
483 +(% style="color:blue" %)**XXX**(%%): The default frequency band
660 660  
661 -[[image:image-20220723110520-5.png||height="903" width="677"]]
485 +* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
486 +* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
487 +* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
488 +* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
489 +* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
490 +* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
491 +* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
492 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
493 +* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
662 662  
495 += 4.  Reference =
663 663  
664 664  
665 -Connect LA66 USB LoRaWAN Module
498 +* Hardware Design File for LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
499 +* Mobile Phone App Source Code: [[Download>>https://github.com/dragino/LA66_Mobile_App]].
666 666  
667 -[[image:image-20220723110626-6.png||height="906" width="680"]]
501 += 5.  FCC Statement =
668 668  
669 669  
504 +(% style="color:red" %)**FCC Caution:**
670 670  
671 -=== 3.8.2 Use DRAGINO-LA66-APP to obtain positioning information and send it to TTNV3 through LA66 USB LoRaWAN Adapter and integrate it into Node-RED ===
506 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
672 672  
508 +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.
673 673  
674 -**1.  Register LA66 USB LoRaWAN Module to TTNV3**
675 675  
676 -[[image:image-20220723134549-8.png]]
511 +(% style="color:red" %)**IMPORTANT NOTE: **
677 677  
513 +(% 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:
678 678  
515 +—Reorient or relocate the receiving antenna.
679 679  
680 -**2.  Open Node-RED,And import the JSON file to generate the flow**
517 +—Increase the separation between the equipment and receiver.
681 681  
682 -Sample JSON file please go to this link to download：放置JSON文件的链接
519 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
683 683  
684 -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/]]
521 +—Consult the dealer or an experienced radio/TV technician for help.
685 685  
686 -The following is the positioning effect map
687 687  
688 -[[image:image-20220723144339-1.png]]
524 +(% style="color:red" %)**FCC Radiation Exposure Statement: **
689 689  
526 +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.
690 690  
691 -
692 -== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
693 -
694 -
695 -The LA66 USB LoRaWAN Adapter is the same as the LA66 LoRaWAN Shield update method
696 -
697 -Just use the yellow jumper cap to short the BOOT corner and the RX corner, and then press the RESET button (without the jumper cap, you can directly short the BOOT corner and the RX corner with a wire to achieve the same effect)
698 -
699 -[[image:image-20220723150132-2.png]]
700 -
701 -
702 -
703 -= 4.  Order Info =
704 -
705 -
706 -**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
707 -
708 -
709 -(% style="color:blue" %)**XXX**(%%): The default frequency band
710 -
711 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
712 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
713 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
714 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
715 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
716 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
717 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
718 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
719 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
720 -
721 -
722 -= 5.  Reference =
723 -
724 -
725 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
528 +
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