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Last modified by Xiaoling on 2023/05/26 14:19
From version 166.2
edited by Xiaoling
on 2022/11/14 11:41
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
... ... @@ -65,11 +65,8 @@
65 65  * Firmware upgradable via UART interface
66 66  * Ultra-long RF range
67 67  
32 +== Specification ==
68 68  
69 -
70 -== 1.3  Specification ==
71 -
72 -
73 73  * CPU: 32-bit 48 MHz
74 74  * Flash: 256KB
75 75  * RAM: 64KB
... ... @@ -88,357 +88,288 @@
88 88  * LoRa Rx current: <9 mA
89 89  * I/O Voltage: 3.3v
90 90  
52 +== AT Command ==
91 91  
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.
92 92  
93 -== 1.4  Pin Mapping & LED ==
94 94  
57 +== Dimension ==
95 95  
96 -[[image:image-20220817085048-1.png||height="533" width="734"]]
59 +[[image:image-20220517072526-1.png]]
97 97  
98 98  
62 +== Pin Mapping ==
99 99  
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
64 +[[image:image-20220523101537-1.png]]
103 103  
66 +== Land Pattern ==
104 104  
105 -[[image:image-20220820112305-1.png||height="515" width="749"]]
68 +[[image:image-20220517072821-2.png]]
106 106  
107 107  
71 +== Order Info ==
108 108  
109 -== 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
73 +Part Number: **LA66-XXX**
110 110  
75 +**XX**: The default frequency band
111 111  
112 -**Show connection diagram：**
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
113 113  
114 114  
115 -[[image:image-20220723170210-2.png||height="908" width="681"]]
88 += LA66 LoRaWAN Shield =
116 116  
90 +== Overview ==
117 117  
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.
118 118  
119 -(% style="color:blue" %)**1.  open Arduino IDE**
120 120  
95 +== Features ==
121 121  
122 -[[image:image-20220723170545-4.png]]
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
123 123  
108 +== Specification ==
124 124  
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
125 125  
126 -(% style="color:blue" %)**2.  Open project**
128 +== Pin Mapping & LED ==
127 127  
130 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
128 128  
129 -LA66-LoRaWAN-shield-AT-command-via-Arduino-UNO source code link: [[https:~~/~~/www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0 >>https://www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0]]
132 +== Example: Join TTN network and send an uplink message, get downlink message. ==
130 130  
131 -[[image:image-20220726135239-1.png]]
134 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
132 132  
136 +== Upgrade Firmware of LA66 LoRaWAN Shield ==
133 133  
138 +=== what needs to be used ===
134 134  
135 -(% 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**
140 +1.LA66 LoRaWAN Shield that needs to be upgraded
136 136  
142 +2.Arduino
137 137  
138 -[[image:image-20220726135356-2.png]]
144 +3.USB TO TTL
139 139  
146 +[[image:image-20220602100052-2.png]]
140 140  
148 +=== Wiring Schematic ===
141 141  
142 -(% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
150 +[[image:image-20220602101311-3.png]]
143 143  
152 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
144 144  
145 -[[image:image-20220723172235-7.png||height="480" width="1027"]]
154 +GND  >>>>>>>>>>>>GND
146 146  
156 +TXD  >>>>>>>>>>>>TXD
147 147  
158 +RXD  >>>>>>>>>>>>RXD
148 148  
149 -== 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
160 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
150 150  
162 +Connect to the PC after connecting the wires
151 151  
152 -(% style="color:blue" %)**1.  Open project**
164 +[[image:image-20220602102240-4.png]]
153 153  
166 +=== Upgrade steps ===
154 154  
155 -Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0 >>https://www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0]]
168 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
156 156  
170 +[[image:image-20220602102824-5.png]]
157 157  
158 -[[image:image-20220723172502-8.png]]
172 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
159 159  
174 +[[image:image-20220602104701-12.png]]
160 160  
176 +==== Open the upgrade application software ====
161 161  
162 -(% 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**
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/]]
163 163  
180 +[[image:image-20220602103227-6.png]]
164 164  
165 -[[image:image-20220723172938-9.png||height="652" width="1050"]]
182 +[[image:image-20220602103357-7.png]]
166 166  
184 +===== Select the COM port corresponding to USB TTL =====
167 167  
186 +[[image:image-20220602103844-8.png]]
168 168  
169 -== 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
188 +===== Select the bin file to burn =====
170 170  
190 +[[image:image-20220602104144-9.png]]
171 171  
172 -(% style="color:blue" %)**1.  Open project**
192 +[[image:image-20220602104251-10.png]]
173 173  
194 +[[image:image-20220602104402-11.png]]
174 174  
175 -Log-Temperature-Sensor-and-send-data-to-TTN source code link: [[https:~~/~~/www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0>>https://www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0]]
196 +===== Click to start the download =====
176 176  
198 +[[image:image-20220602104923-13.png]]
177 177  
178 -[[image:image-20220723173341-10.png||height="581" width="1014"]]
200 +===== The following figure appears to prove that the burning is in progress =====
179 179  
202 +[[image:image-20220602104948-14.png]]
180 180  
204 +===== The following picture appears to prove that the burning is successful =====
181 181  
182 -(% 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**
206 +[[image:image-20220602105251-15.png]]
183 183  
208 +(% class="wikigeneratedid" %)
209 += =
184 184  
185 -[[image:image-20220723173950-11.png||height="665" width="1012"]]
211 +== Order Info ==
186 186  
213 +Part Number: **LA66-LoRaWAN-Shield-XXX**
187 187  
215 +**XX**: The default frequency band
188 188  
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
189 189  
190 190  
191 -(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
228 +(% class="wikigeneratedid" %)
229 +== Package Info ==
192 192  
231 +* LA66 LoRaWAN Shield x 1
232 +* RF Antenna x 1
193 193  
194 -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/]]
195 195  
196 196  
197 -[[image:image-20220723175700-12.png||height="602" width="995"]]
198 198  
199 199  
238 += LA66 USB LoRaWAN Adapter =
200 200  
201 -== 1.8  Example: How to join helium ==
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.
202 202  
242 +Before use, please make sure that the computer has installed the CP2102 driver
203 203  
204 -(% style="color:blue" %)**1.  Create a new device.**
244 +== Pin Mapping & LED ==
205 205  
246 +== Example Send & Get Messages via LoRaWAN in PC ==
206 206  
207 -[[image:image-20220907165500-1.png||height="464" width="940"]]
248 +Connect the LA66 LoRa Shield to the PC
208 208  
250 +[[image:image-20220602171217-1.png||height="615" width="915"]]
209 209  
252 +Open the serial port tool
210 210  
211 -(% style="color:blue" %)**2.  Save the device after filling in the necessary information.**
254 +[[image:image-20220602161617-8.png]]
212 212  
256 +[[image:image-20220602161718-9.png||height="529" width="927"]]
213 213  
214 -[[image:image-20220907165837-2.png||height="375" width="809"]]
258 +Press the reset switch RST on the LA66 LoRa Shield.
215 215  
260 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
216 216  
262 +[[image:image-20220602161935-10.png]]
217 217  
218 -(% style="color:blue" %)**3.  Use AT commands.**
264 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
219 219  
266 +example: AT+SENDB=01,02,8,05820802581ea0a5
220 220  
221 -[[image:image-20220602100052-2.png||height="385" width="600"]]
268 +[[image:image-20220602162157-11.png]]
222 222  
270 +Check to see if TTN received the message
223 223  
272 +[[image:image-20220602162331-12.png||height="547" width="1044"]]
224 224  
225 -(% style="color:#0000ff" %)**4.  Use command AT+CFG to get device configuration**
274 +== Example Send & Get Messages via LoRaWAN in RPi ==
226 226  
276 +Connect the LA66 LoRa Shield to the RPI
227 227  
228 -[[image:image-20220907170308-3.png||height="556" width="617"]]
278 +[[image:image-20220602171233-2.png||height="592" width="881"]]
229 229  
280 +Log in to the RPI's terminal and connect to the serial port
230 230  
282 +[[image:image-20220602153146-3.png]]
231 231  
232 -(% style="color:blue" %)**5.  Network successfully.**
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
233 233  
287 +[[image:image-20220602154928-5.png]]
234 234  
235 -[[image:image-20220907170436-4.png]]
289 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
236 236  
291 +example: AT+SENDB=01,02,8,05820802581ea0a5
237 237  
293 +[[image:image-20220602160339-6.png]]
238 238  
239 -(% style="color:blue" %)**6.  Send uplink using command**
295 +Check to see if TTN received the message
240 240  
297 +[[image:image-20220602160627-7.png||height="468" width="1013"]]
241 241  
242 -[[image:image-20220912084334-1.png]]
299 +=== Install Minicom ===
243 243  
301 +Enter the following command in the RPI terminal
244 244  
245 -[[image:image-20220912084412-3.png]]
303 +apt update
246 246  
305 +[[image:image-20220602143155-1.png]]
247 247  
307 +apt install minicom
248 248  
249 -[[image:image-20220907170744-6.png||height="242" width="798"]]
309 +[[image:image-20220602143744-2.png]]
250 250  
311 +=== Send PC's CPU/RAM usage to TTN via script. ===
251 251  
313 +==== Take python as an example： ====
252 252  
253 -== 1.9  Upgrade Firmware of LA66 LoRaWAN Shield ==
315 +===== Preconditions: =====
254 254  
317 +1.LA66 USB LoRaWAN Adapter works fine
255 255  
256 -=== 1.9.1  Items needed for update ===
319 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
257 257  
321 +===== Steps for usage =====
258 258  
259 -1. LA66 LoRaWAN Shield
260 -1. Arduino
261 -1. USB TO TTL Adapter
323 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
262 262  
263 -[[image:image-20220602100052-2.png||height="385" width="600"]]
325 +2.Run the script and see the TTN
264 264  
327 +[[image:image-20220602115852-3.png]]
265 265  
266 266  
267 -=== 1.9.2  Connection ===
268 268  
331 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
269 269  
270 -[[image:image-20220602101311-3.png||height="276" width="600"]]
271 271  
334 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
272 272  
273 -(((
274 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
275 -)))
276 -
277 -(((
278 -(% style="background-color:yellow" %)**GND  <-> GND
279 -TXD  <->  TXD
280 -RXD  <->  RXD**
281 -)))
282 -
283 -
284 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
285 -
286 -Connect USB TTL Adapter to PC after connecting the wires
287 -
288 -
289 -[[image:image-20220602102240-4.png||height="304" width="600"]]
290 -
291 -
292 -
293 -=== 1.9.3  Upgrade steps ===
294 -
295 -
296 -
297 -==== (% style="color:blue" %)**1.  Switch SW1 to put in ISP position**(%%) ====
298 -
299 -
300 -[[image:image-20220602102824-5.png||height="306" width="600"]]
301 -
302 -
303 -
304 -
305 -==== (% style="color:blue" %)**2.  Press the RST switch once**(%%) ====
306 -
307 -
308 -[[image:image-20220817085447-1.png]]
309 -
310 -
311 -
312 -
313 -==== (% style="color:blue" %)**3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade**(%%) ====
314 -
315 -
316 -
317 -(((
318 -(% 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]]**
319 -)))
320 -
321 -
322 -[[image:image-20220602103227-6.png]]
323 -
324 -
325 -[[image:image-20220602103357-7.png]]
326 -
327 -
328 -
329 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
330 -(% style="color:blue" %)**2.  Select the COM port corresponding to USB TTL**
331 -
332 -
333 -[[image:image-20220602103844-8.png]]
334 -
335 -
336 -
337 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
338 -(% style="color:blue" %)**3.  Select the bin file to burn**
339 -
340 -
341 -[[image:image-20220602104144-9.png]]
342 -
343 -
344 -[[image:image-20220602104251-10.png]]
345 -
346 -
347 -[[image:image-20220602104402-11.png]]
348 -
349 -
350 -
351 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
352 -(% style="color:blue" %)**4.  Click to start the download**
353 -
354 -
355 -[[image:image-20220602104923-13.png]]
356 -
357 -
358 -
359 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
360 -(% style="color:blue" %)**5.  Check update process**
361 -
362 -
363 -[[image:image-20220602104948-14.png]]
364 -
365 -
366 -
367 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
368 -(% style="color:blue" %)**The following picture shows that the burning is successful**
369 -
370 -
371 -[[image:image-20220602105251-15.png]]
372 -
373 -
374 -
375 -= 2.  FAQ =
376 -
377 -
378 -== 2.1  How to Compile Source Code for LA66? ==
379 -
380 -
381 -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]]
382 -
383 -
384 -
385 -== 2.2  Where to find Peer-to-Peer firmware of LA66? ==
386 -
387 -
388 -Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:.Instruction for LA66 Peer to Peer firmware.WebHome]]
389 -
390 -
391 -
392 -= 3.  Order Info =
393 -
394 -
395 -**Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
396 -
397 -
398 -(% style="color:blue" %)**XXX**(%%): The default frequency band
399 -
400 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
401 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
402 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
403 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
404 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
405 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
406 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
407 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
408 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
409 -
410 -
411 -
412 -= 4.  Reference =
413 -
414 -
415 -* Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
416 -
417 -
418 -
419 -= 5.  FCC Statement =
420 -
421 -
422 -(% style="color:red" %)**FCC Caution:**
423 -
424 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
425 -
426 -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.
427 -
428 -
429 -(% style="color:red" %)**IMPORTANT NOTE: **
430 -
431 -(% 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:
432 -
433 -—Reorient or relocate the receiving antenna.
434 -
435 -—Increase the separation between the equipment and receiver.
436 -
437 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
438 -
439 -—Consult the dealer or an experienced radio/TV technician for help.
440 -
441 -
442 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
443 -
444 -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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