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Last modified by Xiaoling on 2023/05/26 14:19
From version 166.4
edited by Xiaoling
on 2023/05/26 14:19
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
... ... @@ -1,62 +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 -== 1.1  Overview ==
13 -
14 -
15 -(((
16 -[[image:image-20220715000826-2.png||height="145" width="220"]]
17 -)))
18 -
19 -(((
20 -
21 -)))
22 -
23 -(((
24 -(% 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.
25 -)))
26 -
27 -(((
28 -(((
29 -(% 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.
30 -)))
31 -)))
32 -
33 -(((
34 -(((
35 35  Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
36 -)))
37 -)))
38 38  
39 -(((
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 -)))
43 -)))
44 44  
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 -)))
49 -)))
50 50  
51 51  
52 -== 1.2  Features ==
20 +== Features ==
53 53  
54 -
55 -* Arduino Shield base on LA66 LoRaWAN module
56 -* Support LoRaWAN v1.0.3 protocol
22 +* Support LoRaWAN v1.0.4 protocol
57 57  * Support peer-to-peer protocol
58 58  * TCXO crystal to ensure RF performance on low temperature
59 -* SMA connector
25 +* SMD Antenna pad and i-pex antenna connector
60 60  * Available in different frequency LoRaWAN frequency bands.
61 61  * World-wide unique OTAA keys.
62 62  * AT Command via UART-TTL interface
... ... @@ -63,10 +63,8 @@
63 63  * Firmware upgradable via UART interface
64 64  * Ultra-long RF range
65 65  
32 +== Specification ==
66 66  
67 -== 1.3  Specification ==
68 -
69 -
70 70  * CPU: 32-bit 48 MHz
71 71  * Flash: 256KB
72 72  * RAM: 64KB
... ... @@ -85,343 +85,288 @@
85 85  * LoRa Rx current: <9 mA
86 86  * I/O Voltage: 3.3v
87 87  
52 +== AT Command ==
88 88  
89 -== 1.4  Pin Mapping & LED ==
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.
90 90  
91 91  
92 -[[image:image-20220817085048-1.png||height="533" width="734"]]
57 +== Dimension ==
93 93  
59 +[[image:image-20220517072526-1.png]]
94 94  
95 95  
96 -~1. The LED lights up red when there is an upstream data packet
62 +== Pin Mapping ==
97 97  
98 -2. When the network is successfully connected, the green light will be on for 5 seconds
64 +[[image:image-20220523101537-1.png]]
99 99  
100 -3. Purple light on when receiving downlink data packets
66 +== Land Pattern ==
101 101  
68 +[[image:image-20220517072821-2.png]]
102 102  
103 -[[image:image-20220820112305-1.png||height="515" width="749"]]
104 104  
71 +== Order Info ==
105 105  
106 -== 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
73 +Part Number: **LA66-XXX**
107 107  
75 +**XX**: The default frequency band
108 108  
109 -(% style="color:blue" %)**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
110 110  
111 111  
112 -[[image:image-20220723170210-2.png||height="908" width="681"]]
88 += LA66 LoRaWAN Shield =
113 113  
90 +== Overview ==
114 114  
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.
115 115  
116 -(% style="color:blue" %)**1.  open Arduino IDE**
117 117  
95 +== Features ==
118 118  
119 -[[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
120 120  
108 +== Specification ==
121 121  
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
122 122  
123 -(% style="color:blue" %)**2.  Open project**
128 +== Pin Mapping & LED ==
124 124  
130 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
125 125  
126 -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. ==
127 127  
128 -[[image:image-20220726135239-1.png]]
134 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
129 129  
136 +== Upgrade Firmware of LA66 LoRaWAN Shield ==
130 130  
138 +=== what needs to be used ===
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**
140 +1.LA66 LoRaWAN Shield that needs to be upgraded
133 133  
142 +2.Arduino
134 134  
135 -[[image:image-20220726135356-2.png]]
144 +3.USB TO TTL
136 136  
146 +[[image:image-20220602100052-2.png]]
137 137  
148 +=== Wiring Schematic ===
138 138  
139 -(% 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]]
140 140  
152 +LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
141 141  
142 -[[image:image-20220723172235-7.png||height="480" width="1027"]]
154 +GND  >>>>>>>>>>>>GND
143 143  
156 +TXD  >>>>>>>>>>>>TXD
144 144  
145 -== 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
158 +RXD  >>>>>>>>>>>>RXD
146 146  
160 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
147 147  
148 -(% style="color:blue" %)**1.  Open project**
162 +Connect to the PC after connecting the wires
149 149  
164 +[[image:image-20220602102240-4.png]]
150 150  
151 -Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0 >>https://www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0]]
166 +=== Upgrade steps ===
152 152  
168 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
153 153  
154 -[[image:image-20220723172502-8.png]]
170 +[[image:image-20220602102824-5.png]]
155 155  
172 +==== Press the RST switch on the LA66 LoRaWAN Shield once ====
156 156  
174 +[[image:image-20220602104701-12.png]]
157 157  
158 -(% 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 ====
159 159  
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/]]
160 160  
161 -[[image:image-20220723172938-9.png||height="652" width="1050"]]
180 +[[image:image-20220602103227-6.png]]
162 162  
182 +[[image:image-20220602103357-7.png]]
163 163  
164 -== 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
184 +===== Select the COM port corresponding to USB TTL =====
165 165  
186 +[[image:image-20220602103844-8.png]]
166 166  
167 -(% style="color:blue" %)**1.  Open project**
188 +===== Select the bin file to burn =====
168 168  
190 +[[image:image-20220602104144-9.png]]
169 169  
170 -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]]
192 +[[image:image-20220602104251-10.png]]
171 171  
194 +[[image:image-20220602104402-11.png]]
172 172  
173 -[[image:image-20220723173341-10.png||height="581" width="1014"]]
196 +===== Click to start the download =====
174 174  
198 +[[image:image-20220602104923-13.png]]
175 175  
200 +===== The following figure appears to prove that the burning is in progress =====
176 176  
177 -(% 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**
202 +[[image:image-20220602104948-14.png]]
178 178  
204 +===== The following picture appears to prove that the burning is successful =====
179 179  
180 -[[image:image-20220723173950-11.png||height="665" width="1012"]]
206 +[[image:image-20220602105251-15.png]]
181 181  
208 +(% class="wikigeneratedid" %)
209 += =
182 182  
211 +== Order Info ==
183 183  
213 +Part Number: **LA66-LoRaWAN-Shield-XXX**
184 184  
215 +**XX**: The default frequency band
185 185  
186 -(% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
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  
188 188  
189 -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/]]
228 +(% class="wikigeneratedid" %)
229 +== Package Info ==
190 190  
231 +* LA66 LoRaWAN Shield x 1
232 +* RF Antenna x 1
191 191  
192 -[[image:image-20220723175700-12.png||height="602" width="995"]]
193 193  
194 194  
195 -== 1.8  Example: How to join helium ==
196 196  
197 197  
198 -(% style="color:blue" %)**1.  Create a new device.**
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 -[[image:image-20220907165500-1.png||height="464" width="940"]]
242 +Before use, please make sure that the computer has installed the CP2102 driver
202 202  
244 +== Pin Mapping & LED ==
203 203  
246 +== Example Send & Get Messages via LoRaWAN in PC ==
204 204  
205 -(% style="color:blue" %)**2.  Save the device after filling in the necessary information.**
248 +Connect the LA66 LoRa Shield to the PC
206 206  
250 +[[image:image-20220602171217-1.png||height="615" width="915"]]
207 207  
208 -[[image:image-20220907165837-2.png||height="375" width="809"]]
252 +Open the serial port tool
209 209  
254 +[[image:image-20220602161617-8.png]]
210 210  
256 +[[image:image-20220602161718-9.png||height="529" width="927"]]
211 211  
212 -(% style="color:blue" %)**3.  Use AT commands.**
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 -[[image:image-20220602100052-2.png||height="385" width="600"]]
262 +[[image:image-20220602161935-10.png]]
216 216  
264 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
217 217  
266 +example: AT+SENDB=01,02,8,05820802581ea0a5
218 218  
219 -(% style="color:#0000ff" %)**4.  Use command AT+CFG to get device configuration**
268 +[[image:image-20220602162157-11.png]]
220 220  
270 +Check to see if TTN received the message
221 221  
222 -[[image:image-20220907170308-3.png||height="556" width="617"]]
272 +[[image:image-20220602162331-12.png||height="547" width="1044"]]
223 223  
274 +== Example Send & Get Messages via LoRaWAN in RPi ==
224 224  
276 +Connect the LA66 LoRa Shield to the RPI
225 225  
226 -(% style="color:blue" %)**5.  Network successfully.**
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 -[[image:image-20220907170436-4.png]]
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  
287 +[[image:image-20220602154928-5.png]]
232 232  
233 -(% style="color:blue" %)**6.  Send uplink using command**
289 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
234 234  
291 +example: AT+SENDB=01,02,8,05820802581ea0a5
235 235  
236 -[[image:image-20220912084334-1.png]]
293 +[[image:image-20220602160339-6.png]]
237 237  
295 +Check to see if TTN received the message
238 238  
239 -[[image:image-20220912084412-3.png]]
297 +[[image:image-20220602160627-7.png||height="468" width="1013"]]
240 240  
299 +=== Install Minicom ===
241 241  
301 +Enter the following command in the RPI terminal
242 242  
243 -[[image:image-20220907170744-6.png||height="242" width="798"]]
303 +apt update
244 244  
305 +[[image:image-20220602143155-1.png]]
245 245  
246 -== 1.9  Upgrade Firmware of LA66 LoRaWAN Shield ==
307 +apt install minicom
247 247  
248 -=== 1.9.1  Items needed for update ===
309 +[[image:image-20220602143744-2.png]]
249 249  
311 +=== Send PC's CPU/RAM usage to TTN via script. ===
250 250  
251 -1. LA66 LoRaWAN Shield
252 -1. Arduino
253 -1. USB TO TTL Adapter
313 +==== Take python as an example： ====
254 254  
255 -[[image:image-20220602100052-2.png||height="385" width="600"]]
315 +===== Preconditions: =====
256 256  
317 +1.LA66 USB LoRaWAN Adapter works fine
257 257  
258 -=== 1.9.2  Connection ===
319 +2.LA66 USB LoRaWAN Adapter  is registered with TTN
259 259  
321 +===== Steps for usage =====
260 260  
261 -[[image:image-20220602101311-3.png||height="276" width="600"]]
323 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
262 262  
325 +2.Run the script and see the TTN
263 263  
264 -(((
265 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
266 -)))
327 +[[image:image-20220602115852-3.png]]
267 267  
268 -(((
269 -(% style="background-color:yellow" %)**GND  <-> GND
270 -TXD  <->  TXD
271 -RXD  <->  RXD**
272 -)))
273 273  
274 274  
275 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
331 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
276 276  
277 -Connect USB TTL Adapter to PC after connecting the wires
278 278  
334 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
279 279  
280 -[[image:image-20220602102240-4.png||height="304" width="600"]]
281 -
282 -
283 -=== 1.9.3  Upgrade steps ===
284 -
285 -
286 -==== (% style="color:blue" %)**1.  Switch SW1 to put in ISP position**(%%) ====
287 -
288 -
289 -[[image:image-20220602102824-5.png||height="306" width="600"]]
290 -
291 -
292 -
293 -==== (% style="color:blue" %)**2.  Press the RST switch once**(%%) ====
294 -
295 -
296 -[[image:image-20220817085447-1.png]]
297 -
298 -
299 -
300 -==== (% style="color:blue" %)**3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade**(%%) ====
301 -
302 -
303 -(((
304 -(% 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]]**
305 -)))
306 -
307 -
308 -[[image:image-20220602103227-6.png]]
309 -
310 -
311 -[[image:image-20220602103357-7.png]]
312 -
313 -
314 -
315 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
316 -(% style="color:blue" %)**2.  Select the COM port corresponding to USB TTL**
317 -
318 -
319 -[[image:image-20220602103844-8.png]]
320 -
321 -
322 -
323 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
324 -(% style="color:blue" %)**3.  Select the bin file to burn**
325 -
326 -
327 -[[image:image-20220602104144-9.png]]
328 -
329 -
330 -[[image:image-20220602104251-10.png]]
331 -
332 -
333 -[[image:image-20220602104402-11.png]]
334 -
335 -
336 -
337 -(% class="wikigeneratedid" id="HClicktostartthedownload" %)
338 -(% style="color:blue" %)**4.  Click to start the download**
339 -
340 -
341 -[[image:image-20220602104923-13.png]]
342 -
343 -
344 -
345 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
346 -(% style="color:blue" %)**5.  Check update process**
347 -
348 -
349 -[[image:image-20220602104948-14.png]]
350 -
351 -
352 -
353 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
354 -(% style="color:blue" %)**The following picture shows that the burning is successful**
355 -
356 -
357 -[[image:image-20220602105251-15.png]]
358 -
359 -
360 -= 2.  FAQ =
361 -
362 -== 2.1  How to Compile Source Code for LA66? ==
363 -
364 -
365 -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]]
366 -
367 -
368 -== 2.2  Where to find Peer-to-Peer firmware of LA66? ==
369 -
370 -
371 -Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:.Instruction for LA66 Peer to Peer firmware.WebHome]]
372 -
373 -
374 -= 3.  Order Info =
375 -
376 -
377 -**Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
378 -
379 -(% style="color:blue" %)**XXX**(%%): The default frequency band
380 -
381 -* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
382 -* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
383 -* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
384 -* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
385 -* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
386 -* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
387 -* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
388 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
389 -* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
390 -
391 -
392 -
393 -= 4.  Reference =
394 -
395 -
396 -* Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
397 -
398 -
399 -
400 -= 5.  FCC Statement =
401 -
402 -
403 -(% style="color:red" %)**FCC Caution:**
404 -
405 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
406 -
407 -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.
408 -
409 -
410 -(% style="color:red" %)**IMPORTANT NOTE: **
411 -
412 -(% 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:
413 -
414 -—Reorient or relocate the receiving antenna.
415 -
416 -—Increase the separation between the equipment and receiver.
417 -
418 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
419 -
420 -—Consult the dealer or an experienced radio/TV technician for help.
421 -
422 -
423 -(% style="color:red" %)**FCC Radiation Exposure Statement: **
424 -
425 -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. 
426 -
427 427  
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