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Last modified by Xiaoling on 2023/05/26 14:19
From version 165.4
edited by Xiaoling
on 2022/10/10 11:37
Change comment: There is no comment for this version
To version 72.1
edited by Edwin Chen
on 2022/07/03 00:02
Change comment: There is no comment for this version

Summary

Details

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Title
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1 -LA66 LoRaWAN Shield User Manual
1 +LA66 LoRaWAN Module
Author
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
Content
... ... @@ -1,64 +1,28 @@
1 -
2 -
3 -**Table of Contents:**
4 -
1 +{{box cssClass="floatinginfobox" title="**Contents**"}}
5 5  {{toc/}}
3 +{{/box}}
6 6  
5 += LA66 LoRaWAN Module =
7 7  
7 +== What is LA66 LoRaWAN Module ==
8 8  
9 +(% style="color:blue" %)**Dragino LA66**(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
9 9  
10 -= 1.  LA66 LoRaWAN Shield =
11 +(% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.4 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
11 11  
12 -
13 -== 1.1  Overview ==
14 -
15 -
16 -(((
17 -[[image:image-20220715000826-2.png||height="145" width="220"]]
18 -)))
19 -
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 -(((
36 36  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
37 -)))
38 -)))
39 39  
40 -(((
41 -(((
42 42  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 -)))
45 45  
46 -(((
47 -(((
48 48  LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
49 -)))
50 -)))
51 51  
52 52  
20 +== Features ==
53 53  
54 -== 1.2  Features ==
55 -
56 -
57 -* Arduino Shield base on LA66 LoRaWAN module
58 -* Support LoRaWAN v1.0.3 protocol
22 +* Support LoRaWAN v1.0.4 protocol
59 59  * Support peer-to-peer protocol
60 60  * TCXO crystal to ensure RF performance on low temperature
61 -* SMA connector
25 +* SMD Antenna pad and i-pex antenna connector
62 62  * Available in different frequency LoRaWAN frequency bands.
63 63  * World-wide unique OTAA keys.
64 64  * AT Command via UART-TTL interface
... ... @@ -65,9 +65,8 @@
65 65  * Firmware upgradable via UART interface
66 66  * Ultra-long RF range
67 67  
68 -== 1.3  Specification ==
32 +== Specification ==
69 69  
70 -
71 71  * CPU: 32-bit 48 MHz
72 72  * Flash: 256KB
73 73  * RAM: 64KB
... ... @@ -86,356 +86,288 @@
86 86  * LoRa Rx current: <9 mA
87 87  * I/O Voltage: 3.3v
88 88  
89 -== 1.4  Pin Mapping & LED ==
52 +== AT Command ==
90 90  
54 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
91 91  
92 -[[image:image-20220817085048-1.png||height="533" width="734"]]
93 93  
57 +== Dimension ==
94 94  
59 +[[image:image-20220517072526-1.png]]
95 95  
96 -~1. The LED lights up red when there is an upstream data packet
97 -2. When the network is successfully connected, the green light will be on for 5 seconds
98 -3. Purple light on when receiving downlink data packets
99 99  
62 +== Pin Mapping ==
100 100  
101 -[[image:image-20220820112305-1.png||height="515" width="749"]]
64 +[[image:image-20220523101537-1.png]]
102 102  
66 +== Land Pattern ==
103 103  
68 +[[image:image-20220517072821-2.png]]
104 104  
105 -== 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
106 106  
71 +== Order Info ==
107 107  
108 -**Show connection diagram：**
73 +Part Number: **LA66-XXX**
109 109  
75 +**XX**: The default frequency band
110 110  
111 -[[image:image-20220723170210-2.png||height="908" width="681"]]
77 +* **AS923**: LoRaWAN AS923 band
78 +* **AU915**: LoRaWAN AU915 band
79 +* **EU433**: LoRaWAN EU433 band
80 +* **EU868**: LoRaWAN EU868 band
81 +* **KR920**: LoRaWAN KR920 band
82 +* **US915**: LoRaWAN US915 band
83 +* **IN865**: LoRaWAN IN865 band
84 +* **CN470**: LoRaWAN CN470 band
85 +* **PP**: Peer to Peer LoRa Protocol
112 112  
113 113  
88 += LA66 LoRaWAN Shield =
114 114  
115 -(% style="color:blue" %)**1.  open Arduino IDE**
90 +== Overview ==
116 116  
92 +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.
117 117  
118 -[[image:image-20220723170545-4.png]]
119 119  
95 +== Features ==
120 120  
97 +* Arduino Shield base on LA66 LoRaWAN module
98 +* Support LoRaWAN v1.0.4 protocol
99 +* Support peer-to-peer protocol
100 +* TCXO crystal to ensure RF performance on low temperature
101 +* SMA connector
102 +* Available in different frequency LoRaWAN frequency bands.
103 +* World-wide unique OTAA keys.
104 +* AT Command via UART-TTL interface
105 +* Firmware upgradable via UART interface
106 +* Ultra-long RF range
121 121  
122 -(% style="color:blue" %)**2.  Open project**
108 +== Specification ==
123 123  
110 +* CPU: 32-bit 48 MHz
111 +* Flash: 256KB
112 +* RAM: 64KB
113 +* Input Power Range: 1.8v ~~ 3.7v
114 +* Power Consumption: < 4uA.
115 +* Frequency Range: 150 MHz ~~ 960 MHz
116 +* Maximum Power +22 dBm constant RF output
117 +* High sensitivity: -148 dBm
118 +* Temperature:
119 +** Storage: -55 ~~ +125℃
120 +** Operating: -40 ~~ +85℃
121 +* Humidity:
122 +** Storage: 5 ~~ 95% (Non-Condensing)
123 +** Operating: 10 ~~ 95% (Non-Condensing)
124 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
125 +* LoRa Rx current: <9 mA
126 +* I/O Voltage: 3.3v
124 124  
125 -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]]
128 +== Pin Mapping & LED ==
126 126  
130 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
127 127  
128 -[[image:image-20220726135239-1.png]]
132 +== Example: Join TTN network and send an uplink message, get downlink message. ==
129 129  
134 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
130 130  
136 +== Upgrade Firmware of LA66 LoRaWAN Shield ==
131 131  
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**
138 +=== what needs to be used ===
133 133  
140 +1.LA66 LoRaWAN Shield that needs to be upgraded
134 134  
135 -[[image:image-20220726135356-2.png]]
142 +2.Arduino
136 136  
144 +3.USB TO TTL
137 137  
146 +[[image:image-20220602100052-2.png]]
138 138  
139 -(% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
148 +=== Wiring Schematic ===
140 140  
150 +[[image:image-20220602101311-3.png]]
141 141  
142 -[[image:image-20220723172235-7.png||height="480" width="1027"]]
152 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
143 143  
154 +GND  >>>>>>>>>>>>GND
144 144  
156 +TXD  >>>>>>>>>>>>TXD
145 145  
146 -== 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
158 +RXD  >>>>>>>>>>>>RXD
147 147  
160 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
148 148  
149 -(% style="color:blue" %)**1.  Open project**
162 +Connect to the PC after connecting the wires
150 150  
164 +[[image:image-20220602102240-4.png]]
151 151  
152 -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]]
166 +=== Upgrade steps ===
153 153  
168 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
154 154  
155 -[[image:image-20220723172502-8.png]]
170 +[[image:image-20220602102824-5.png]]
156 156  
172 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
157 157  
174 +[[image:image-20220602104701-12.png]]
158 158  
159 -(% style="color:blue" %)**2.  Same steps as 1.5,after opening the serial port monitoring, it will automatically connect to the network and send packets**
176 +==== Open the upgrade application software ====
160 160  
178 +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/]]
161 161  
162 -[[image:image-20220723172938-9.png||height="652" width="1050"]]
180 +[[image:image-20220602103227-6.png]]
163 163  
182 +[[image:image-20220602103357-7.png]]
164 164  
184 +===== Select the COM port corresponding to USB TTL =====
165 165  
166 -== 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
186 +[[image:image-20220602103844-8.png]]
167 167  
188 +===== Select the bin file to burn =====
168 168  
169 -(% style="color:blue" %)**1.  Open project**
190 +[[image:image-20220602104144-9.png]]
170 170  
192 +[[image:image-20220602104251-10.png]]
171 171  
172 -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]]
194 +[[image:image-20220602104402-11.png]]
173 173  
196 +===== Click to start the download =====
174 174  
175 -[[image:image-20220723173341-10.png||height="581" width="1014"]]
198 +[[image:image-20220602104923-13.png]]
176 176  
200 +===== The following figure appears to prove that the burning is in progress =====
177 177  
202 +[[image:image-20220602104948-14.png]]
178 178  
179 -(% 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**
204 +===== The following picture appears to prove that the burning is successful =====
180 180  
206 +[[image:image-20220602105251-15.png]]
181 181  
182 -[[image:image-20220723173950-11.png||height="665" width="1012"]]
208 +(% class="wikigeneratedid" %)
209 += =
183 183  
211 +== Order Info ==
184 184  
213 +Part Number: **LA66-LoRaWAN-Shield-XXX**
185 185  
215 +**XX**: The default frequency band
186 186  
217 +* **AS923**: LoRaWAN AS923 band
218 +* **AU915**: LoRaWAN AU915 band
219 +* **EU433**: LoRaWAN EU433 band
220 +* **EU868**: LoRaWAN EU868 band
221 +* **KR920**: LoRaWAN KR920 band
222 +* **US915**: LoRaWAN US915 band
223 +* **IN865**: LoRaWAN IN865 band
224 +* **CN470**: LoRaWAN CN470 band
225 +* **PP**: Peer to Peer LoRa Protocol
187 187  
188 -(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
189 189  
228 +(% class="wikigeneratedid" %)
229 +== Package Info ==
190 190  
191 -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/]]
231 +* LA66 LoRaWAN Shield x 1
232 +* RF Antenna x 1
192 192  
193 193  
194 -[[image:image-20220723175700-12.png||height="602" width="995"]]
195 195  
196 196  
197 197  
198 -== 1.8  Example: How to join helium ==
238 += LA66 USB LoRaWAN Adapter =
199 199  
240 +LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.
200 200  
201 -(% style="color:blue" %)**1.  Create a new device.**
242 +Before use, please make sure that the computer has installed the CP2102 driver
202 202  
244 +== Pin Mapping & LED ==
203 203  
204 -[[image:image-20220907165500-1.png||height="464" width="940"]]
246 +== Example Send & Get Messages via LoRaWAN in PC ==
205 205  
248 +Connect the LA66 LoRa Shield to the PC
206 206  
250 +[[image:image-20220602171217-1.png||height="615" width="915"]]
207 207  
208 -(% style="color:blue" %)**2.  Save the device after filling in the necessary information.**
252 +Open the serial port tool
209 209  
254 +[[image:image-20220602161617-8.png]]
210 210  
211 -[[image:image-20220907165837-2.png||height="375" width="809"]]
256 +[[image:image-20220602161718-9.png||height="529" width="927"]]
212 212  
258 +Press the reset switch RST on the LA66 LoRa Shield.
213 213  
260 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
214 214  
215 -(% style="color:blue" %)**3.  Use AT commands.**
262 +[[image:image-20220602161935-10.png]]
216 216  
264 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
217 217  
218 -[[image:image-20220602100052-2.png||height="385" width="600"]]
266 +example: AT+SENDB=01,02,8,05820802581ea0a5
219 219  
268 +[[image:image-20220602162157-11.png]]
220 220  
270 +Check to see if TTN received the message
221 221  
222 -(% style="color:#0000ff" %)**4.  Use command AT+CFG to get device configuration**
272 +[[image:image-20220602162331-12.png||height="547" width="1044"]]
223 223  
274 +== Example Send & Get Messages via LoRaWAN in RPi ==
224 224  
225 -[[image:image-20220907170308-3.png||height="556" width="617"]]
276 +Connect the LA66 LoRa Shield to the RPI
226 226  
278 +[[image:image-20220602171233-2.png||height="592" width="881"]]
227 227  
280 +Log in to the RPI's terminal and connect to the serial port
228 228  
229 -(% style="color:blue" %)**5.  Network successfully.**
282 +[[image:image-20220602153146-3.png]]
230 230  
284 +Press the reset switch RST on the LA66 LoRa Shield.
285 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
231 231  
232 -[[image:image-20220907170436-4.png]]
287 +[[image:image-20220602154928-5.png]]
233 233  
289 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
234 234  
291 +example: AT+SENDB=01,02,8,05820802581ea0a5
235 235  
236 -(% style="color:blue" %)**6.  Send uplink using command**
293 +[[image:image-20220602160339-6.png]]
237 237  
295 +Check to see if TTN received the message
238 238  
239 -[[image:image-20220912084334-1.png]]
297 +[[image:image-20220602160627-7.png||height="468" width="1013"]]
240 240  
299 +=== Install Minicom ===
241 241  
242 -[[image:image-20220912084412-3.png]]
301 +Enter the following command in the RPI terminal
243 243  
303 +apt update
244 244  
305 +[[image:image-20220602143155-1.png]]
245 245  
246 -[[image:image-20220907170744-6.png||height="242" width="798"]]
307 +apt install minicom
247 247  
309 +[[image:image-20220602143744-2.png]]
248 248  
311 +=== Send PC's CPU/RAM usage to TTN via script. ===
249 249  
250 -== 1.9  Upgrade Firmware of LA66 LoRaWAN Shield ==
313 +==== Take python as an example： ====
251 251  
315 +===== Preconditions: =====
252 252  
253 -=== 1.9.1  Items needed for update ===
317 +1.LA66 USB LoRaWAN Adapter works fine
254 254  
319 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
255 255  
256 -1. LA66 LoRaWAN Shield
257 -1. Arduino
258 -1. USB TO TTL Adapter
321 +===== Steps for usage =====
259 259  
260 -[[image:image-20220602100052-2.png||height="385" width="600"]]
323 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
261 261  
325 +2.Run the script and see the TTN
262 262  
327 +[[image:image-20220602115852-3.png]]
263 263  
264 -=== 1.9.2  Connection ===
265 265  
266 266  
267 -[[image:image-20220602101311-3.png||height="276" width="600"]]
331 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
268 268  
269 269  
270 -(((
271 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
272 -)))
334 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
273 273  
274 -(((
275 -(% style="background-color:yellow" %)**GND  <-> GND
276 -TXD  <->  TXD
277 -RXD  <->  RXD**
278 -)))
279 -
280 -
281 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
282 -
283 -Connect USB TTL Adapter to PC after connecting the wires
284 -
285 -
286 -[[image:image-20220602102240-4.png||height="304" width="600"]]
287 -
288 -
289 -
290 -=== 1.9.3  Upgrade steps ===
291 -
292 -
293 -
294 -==== (% style="color:blue" %)1.  Switch SW1 to put in ISP position(%%) ====
295 -
296 -
297 -[[image:image-20220602102824-5.png||height="306" width="600"]]
298 -
299 -
300 -
301 -
302 -==== (% style="color:blue" %)2.  Press the RST switch once(%%) ====
303 -
304 -
305 -[[image:image-20220817085447-1.png]]
306 -
307 -
308 -
309 -
310 -==== (% style="color:blue" %)3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ====
311 -
312 -
313 -
314 -(((
315 -(% style="color:blue" %)**1.  Software download link:  **(%%)**[[https:~~/~~/www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0>>https://www.dropbox.com/sh/j0qyc7a9ejit7jk/AACtx2tK4gEv6YFXMIVUM4dLa?dl=0]]**
316 -)))
317 -
318 -
319 -[[image:image-20220602103227-6.png]]
320 -
321 -
322 -[[image:image-20220602103357-7.png]]
323 -
324 -
325 -
326 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
327 -(% style="color:blue" %)**2.  Select the COM port corresponding to USB TTL**
328 -
329 -
330 -[[image:image-20220602103844-8.png]]
331 -
332 -
333 -
334 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
335 -(% style="color:blue" %)**3.  Select the bin file to burn**
336 -
337 -
338 -[[image:image-20220602104144-9.png]]
339 -
340 -
341 -[[image:image-20220602104251-10.png]]
342 -
343 -
344 -[[image:image-20220602104402-11.png]]
345 -
346 -
347 -
348 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
349 -(% style="color:blue" %)**4.  Click to start the download**
350 -
351 -
352 -[[image:image-20220602104923-13.png]]
353 -
354 -
355 -
356 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
357 -(% style="color:blue" %)**5.  Check update process**
358 -
359 -
360 -[[image:image-20220602104948-14.png]]
361 -
362 -
363 -
364 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
365 -(% style="color:blue" %)**The following picture shows that the burning is successful**
366 -
367 -
368 -[[image:image-20220602105251-15.png]]
369 -
370 -
371 -
372 -= 2.  FAQ =
373 -
374 -
375 -== 2.1  How to Compile Source Code for LA66? ==
376 -
377 -
378 -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]]
379 -
380 -
381 -
382 -== 2.2  Where to find Peer-to-Peer firmware of LA66? ==
383 -
384 -
385 -Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:.Instruction for LA66 Peer to Peer firmware.WebHome]]
386 -
387 -
388 -
389 -= 3.  Order Info =
390 -
391 -
392 -**Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
393 -
394 -
395 -(% style="color:blue" %)**XXX**(%%): The default frequency band
396 -
397 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
398 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
399 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
400 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
401 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
402 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
403 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
404 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
405 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
406 -
407 -
408 -
409 -= 4.  Reference =
410 -
411 -
412 -* Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
413 -
414 -
415 -
416 -= 5.  FCC Statement =
417 -
418 -
419 -(% style="color:red" %)**FCC Caution:**
420 -
421 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
422 -
423 -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.
424 -
425 -
426 -(% style="color:red" %)**IMPORTANT NOTE: **
427 -
428 -(% 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:
429 -
430 -—Reorient or relocate the receiving antenna.
431 -
432 -—Increase the separation between the equipment and receiver.
433 -
434 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
435 -
436 -—Consult the dealer or an experienced radio/TV technician for help.
437 -
438 -
439 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
440 -
441 -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. 
336 +
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