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Xiaoling 134.2 1
Xiaoling 87.2 2
Xiaoling 87.13 3 **Table of Contents:**
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Edwin Chen 1.1 5 {{toc/}}
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Edwin Chen 6.1 8
Xiaoling 87.2 9
Xiaoling 146.5 10 = 1.  LA66 LoRaWAN Shield =
Xiaoling 87.2 11
Xiaoling 146.5 12 == 1.1  Overview ==
Xiaoling 87.2 13
Edwin Chen 88.2 14
Xiaoling 100.2 15 (((
16 [[image:image-20220715000826-2.png||height="145" width="220"]]
17 )))
Edwin Chen 90.1 18
Xiaoling 100.2 19 (((
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Xiaoling 100.4 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.
Xiaoling 100.2 25 )))
Edwin Chen 71.1 26
Edwin Chen 90.1 27 (((
Xiaoling 100.2 28 (((
Xiaoling 101.4 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.
Edwin Chen 90.1 30 )))
Xiaoling 100.2 31 )))
Edwin Chen 71.1 32
Edwin Chen 90.1 33 (((
Xiaoling 100.2 34 (((
Edwin Chen 90.1 35 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
36 )))
Xiaoling 100.2 37 )))
Edwin Chen 90.1 38
39 (((
Xiaoling 100.2 40 (((
Edwin Chen 90.1 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 )))
Xiaoling 100.2 43 )))
Edwin Chen 90.1 44
45 (((
Xiaoling 100.2 46 (((
Edwin Chen 90.1 47 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
48 )))
Xiaoling 100.2 49 )))
Edwin Chen 90.1 50
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Xiaoling 146.5 52 == 1.2  Features ==
Edwin Chen 71.1 53
Xiaoling 137.6 54
Edwin Chen 71.1 55 * Arduino Shield base on LA66 LoRaWAN module
Xiaoling 146.10 56 * Support LoRaWAN v1.0.3 protocol
Edwin Chen 71.1 57 * Support peer-to-peer protocol
58 * TCXO crystal to ensure RF performance on low temperature
59 * SMA connector
60 * Available in different frequency LoRaWAN frequency bands.
61 * World-wide unique OTAA keys.
62 * AT Command via UART-TTL interface
63 * Firmware upgradable via UART interface
64 * Ultra-long RF range
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Xiaoling 165.5 66
Xiaoling 146.5 67 == 1.3  Specification ==
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Edwin Chen 71.1 70 * CPU: 32-bit 48 MHz
71 * Flash: 256KB
72 * RAM: 64KB
73 * Input Power Range: 1.8v ~~ 3.7v
74 * Power Consumption: < 4uA.
75 * Frequency Range: 150 MHz ~~ 960 MHz
76 * Maximum Power +22 dBm constant RF output
77 * High sensitivity: -148 dBm
78 * Temperature:
79 ** Storage: -55 ~~ +125℃
80 ** Operating: -40 ~~ +85℃
81 * Humidity:
82 ** Storage: 5 ~~ 95% (Non-Condensing)
83 ** Operating: 10 ~~ 95% (Non-Condensing)
84 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
85 * LoRa Rx current: <9 mA
86 * I/O Voltage: 3.3v
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Xiaoling 165.5 88
Xiaoling 146.6 89 == 1.4  Pin Mapping & LED ==
Xiaoling 137.6 90
Edwin Chen 11.1 91
Edwin Chen 151.1 92 [[image:image-20220817085048-1.png||height="533" width="734"]]
Edwin Chen 146.1 93
Xiaoling 147.3 94
Xiaoling 149.2 95
Herong Lu 125.1 96 ~1. The LED lights up red when there is an upstream data packet
Xiaoling 166.4 97
Herong Lu 125.1 98 2. When the network is successfully connected, the green light will be on for 5 seconds
Xiaoling 166.4 99
Herong Lu 125.1 100 3. Purple light on when receiving downlink data packets
Edwin Chen 11.1 101
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Edwin Chen 151.1 103 [[image:image-20220820112305-1.png||height="515" width="749"]]
Xiaoling 134.5 104
Edwin Chen 151.1 105
Xiaoling 146.6 106 == 1.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
Edwin Chen 11.1 107
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Xiaoling 166.4 109 (% style="color:blue" %)**Show connection diagram:**
Xiaoling 134.3 110
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Herong Lu 125.1 112 [[image:image-20220723170210-2.png||height="908" width="681"]]
Xiaoling 87.2 113
Herong Lu 125.1 114
Xiaoling 134.3 115
Xiaoling 134.6 116 (% style="color:blue" %)**1.  open Arduino IDE**
Xiaoling 134.3 117
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Herong Lu 125.1 119 [[image:image-20220723170545-4.png]]
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Xiaoling 134.3 122
Xiaoling 134.6 123 (% style="color:blue" %)**2.  Open project**
Xiaoling 134.3 124
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Edwin Chen 166.1 126 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]]
Xiaoling 134.3 127
Herong Lu 137.1 128 [[image:image-20220726135239-1.png]]
Herong Lu 125.1 129
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Xiaoling 149.3 131
Xiaoling 134.6 132 (% 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**
Xiaoling 134.3 133
Xiaoling 151.3 134
Herong Lu 137.1 135 [[image:image-20220726135356-2.png]]
Xiaoling 134.3 136
Herong Lu 125.1 137
Xiaoling 149.3 138
Xiaoling 134.6 139 (% style="color:blue" %)**4.  After the upload is successful, open the serial port monitoring and send the AT command**
Herong Lu 125.1 140
Xiaoling 134.3 141
Herong Lu 131.1 142 [[image:image-20220723172235-7.png||height="480" width="1027"]]
Herong Lu 125.1 143
Xiaoling 134.3 144
Xiaoling 146.6 145 == 1.6  Example: Join TTN network and send an uplink message, get downlink message. ==
Xiaoling 87.2 146
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Xiaoling 134.6 148 (% style="color:blue" %)**1.  Open project**
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Edwin Chen 166.1 151 Join-TTN-network source code link: [[https:~~/~~/www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0 >>https://www.dropbox.com/sh/hgtycj0go4tka2r/AAACRRIRriMAudB2m3ThH7Sba?dl=0]]
Xiaoling 134.3 152
Xiaoling 134.7 153
Herong Lu 131.1 154 [[image:image-20220723172502-8.png]]
Xiaoling 87.2 155
Herong Lu 131.1 156
Xiaoling 134.3 157
Bei Jinggeng 159.1 158 (% 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**
Xiaoling 134.3 159
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Herong Lu 131.1 161 [[image:image-20220723172938-9.png||height="652" width="1050"]]
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Xiaoling 146.6 164 == 1.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. ==
Xiaoling 87.2 165
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Xiaoling 134.6 167 (% style="color:blue" %)**1.  Open project**
Xiaoling 134.2 168
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Edwin Chen 166.1 170 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]]
Xiaoling 134.2 171
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Herong Lu 131.1 173 [[image:image-20220723173341-10.png||height="581" width="1014"]]
Xiaoling 87.2 174
Herong Lu 131.1 175
Xiaoling 134.2 176
Xiaoling 134.6 177 (% 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**
Xiaoling 134.2 178
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Herong Lu 131.1 180 [[image:image-20220723173950-11.png||height="665" width="1012"]]
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Xiaoling 134.2 183
Bei Jinggeng 152.1 184
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Xiaoling 134.6 186 (% style="color:blue" %)**3.  Integration into Node-red via TTNV3**
Xiaoling 134.2 187
Herong Lu 133.1 188
Xiaoling 151.3 189 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/]]
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Herong Lu 133.1 192 [[image:image-20220723175700-12.png||height="602" width="995"]]
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Xiaoling 134.2 194
Xiaoling 163.2 195 == 1.8  Example: How to join helium ==
Xiaoling 87.2 196
Xiaoling 163.2 197
198 (% style="color:blue" %)**1.  Create a new device.**
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Bei Jinggeng 159.1 201 [[image:image-20220907165500-1.png||height="464" width="940"]]
Xiaoling 87.2 202
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Xiaoling 134.2 204
Xiaoling 163.2 205 (% style="color:blue" %)**2.  Save the device after filling in the necessary information.**
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Bei Jinggeng 159.1 208 [[image:image-20220907165837-2.png||height="375" width="809"]]
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Xiaoling 163.2 211
Bei Jinggeng 159.1 212 (% style="color:blue" %)**3.  Use AT commands.**
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Xiaoling 163.2 214
Bei Jinggeng 159.1 215 [[image:image-20220602100052-2.png||height="385" width="600"]]
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Xiaoling 163.2 219 (% style="color:#0000ff" %)**4.  Use command AT+CFG to get device configuration**
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Bei Jinggeng 159.1 222 [[image:image-20220907170308-3.png||height="556" width="617"]]
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Xiaoling 163.2 225
Bei Jinggeng 159.1 226 (% style="color:blue" %)**5.  Network successfully.**
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Xiaoling 163.2 228
Bei Jinggeng 159.1 229 [[image:image-20220907170436-4.png]]
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Xiaoling 163.2 232
Bei Jinggeng 159.1 233 (% style="color:blue" %)**6.  Send uplink using command**
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Xiaoling 163.2 236 [[image:image-20220912084334-1.png]]
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Bei Jinggeng 159.1 243 [[image:image-20220907170744-6.png||height="242" width="798"]]
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246 == 1.9  Upgrade Firmware of LA66 LoRaWAN Shield ==
247
248 === 1.9.1  Items needed for update ===
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Edwin Chen 74.1 251 1. LA66 LoRaWAN Shield
252 1. Arduino
253 1. USB TO TTL Adapter
Edwin Chen 13.1 254
Edwin Chen 75.1 255 [[image:image-20220602100052-2.png||height="385" width="600"]]
Herong Lu 20.1 256
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Bei Jinggeng 159.1 258 === 1.9.2  Connection ===
Herong Lu 20.1 259
Xiaoling 87.2 260
Edwin Chen 75.1 261 [[image:image-20220602101311-3.png||height="276" width="600"]]
Herong Lu 20.1 262
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Xiaoling 87.17 264 (((
Xiaoling 87.2 265 (% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
Xiaoling 87.17 266 )))
Xiaoling 87.2 267
Xiaoling 87.16 268 (((
Xiaoling 87.2 269 (% style="background-color:yellow" %)**GND  <-> GND
Xiaoling 87.8 270 TXD  <->  TXD
271 RXD  <->  RXD**
Xiaoling 87.16 272 )))
Xiaoling 87.2 273
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Edwin Chen 77.1 275 Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
Herong Lu 20.1 276
Edwin Chen 75.1 277 Connect USB TTL Adapter to PC after connecting the wires
Herong Lu 20.1 278
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Edwin Chen 75.1 280 [[image:image-20220602102240-4.png||height="304" width="600"]]
Herong Lu 20.1 281
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Bei Jinggeng 159.1 283 === 1.9.3  Upgrade steps ===
Herong Lu 20.1 284
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Xiaoling 165.5 286 ==== (% style="color:blue" %)**1.  Switch SW1 to put in ISP position**(%%) ====
Xiaoling 87.2 287
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Edwin Chen 75.1 289 [[image:image-20220602102824-5.png||height="306" width="600"]]
Herong Lu 32.1 290
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Xiaoling 87.9 292
Xiaoling 165.5 293 ==== (% style="color:blue" %)**2.  Press the RST switch once**(%%) ====
Herong Lu 32.1 294
Xiaoling 87.10 295
Xiaoling 148.2 296 [[image:image-20220817085447-1.png]]
Herong Lu 32.1 297
Edwin Chen 75.1 298
Xiaoling 87.9 299
Xiaoling 165.5 300 ==== (% style="color:blue" %)**3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade**(%%) ====
Edwin Chen 75.1 301
Herong Lu 39.1 302
Xiaoling 87.18 303 (((
Xiaoling 163.2 304 (% 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]]**
Xiaoling 87.18 305 )))
Xiaoling 87.2 306
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Herong Lu 32.1 308 [[image:image-20220602103227-6.png]]
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Xiaoling 87.2 310
Herong Lu 32.1 311 [[image:image-20220602103357-7.png]]
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Xiaoling 87.2 314
Edwin Chen 76.1 315 (% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
Xiaoling 163.2 316 (% style="color:blue" %)**2.  Select the COM port corresponding to USB TTL**
Edwin Chen 76.1 317
Xiaoling 87.2 318
Herong Lu 32.1 319 [[image:image-20220602103844-8.png]]
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Xiaoling 87.2 322
Edwin Chen 76.1 323 (% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
Xiaoling 163.2 324 (% style="color:blue" %)**3.  Select the bin file to burn**
Edwin Chen 76.1 325
Xiaoling 87.2 326
Herong Lu 32.1 327 [[image:image-20220602104144-9.png]]
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Xiaoling 87.2 329
Herong Lu 32.1 330 [[image:image-20220602104251-10.png]]
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Xiaoling 87.2 332
Herong Lu 32.1 333 [[image:image-20220602104402-11.png]]
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Xiaoling 87.2 336
Edwin Chen 76.1 337 (% class="wikigeneratedid" id="HClicktostartthedownload" %)
Xiaoling 163.2 338 (% style="color:blue" %)**4.  Click to start the download**
Edwin Chen 76.1 339
Xiaoling 151.4 340
Herong Lu 32.1 341 [[image:image-20220602104923-13.png]]
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Xiaoling 87.10 344
Edwin Chen 76.1 345 (% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
Xiaoling 163.2 346 (% style="color:blue" %)**5.  Check update process**
Edwin Chen 76.1 347
Xiaoling 87.2 348
Herong Lu 32.1 349 [[image:image-20220602104948-14.png]]
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Xiaoling 87.2 352
Edwin Chen 76.1 353 (% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
Xiaoling 87.2 354 (% style="color:blue" %)**The following picture shows that the burning is successful**
Edwin Chen 76.1 355
Xiaoling 151.4 356
Herong Lu 32.1 357 [[image:image-20220602105251-15.png]]
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Edwin Chen 72.1 359
Xiaoling 146.7 360 = 2.  FAQ =
Edwin Chen 6.1 361
Xiaoling 165.2 362 == 2.1  How to Compile Source Code for LA66? ==
Xiaoling 87.2 363
Xiaoling 100.3 364
Xiaoling 146.4 365 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]]
Xiaoling 137.2 366
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Xiaoling 165.2 368 == 2.2  Where to find Peer-to-Peer firmware of LA66? ==
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Xiaoling 165.2 371 Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:.Instruction for LA66 Peer to Peer firmware.WebHome]]
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Xiaoling 166.4 373
Xiaoling 146.7 374 = 3.  Order Info =
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Xiaoling 146.7 377 **Part Number:**   (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%)
Xiaoling 87.4 378
Xiaoling 87.5 379 (% style="color:blue" %)**XXX**(%%): The default frequency band
Edwin Chen 86.1 380
Xiaoling 87.5 381 * (% 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
Edwin Chen 73.1 390
Xiaoling 165.3 391
Xiaoling 166.4 392
Xiaoling 146.7 393 = 4.  Reference =
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396 * Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]
Xiaoling 148.3 397
Xiaoling 165.4 398
Xiaoling 166.4 399
Xiaoling 165.4 400 = 5.  FCC Statement =
401
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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.
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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.
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410 (% style="color:red" %)**IMPORTANT NOTE: **
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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:
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414 —Reorient or relocate the receiving antenna.
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416 —Increase the separation between the equipment and receiver.
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418 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
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420 —Consult the dealer or an experienced radio/TV technician for help.
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422
423 (% style="color:red" %)**FCC Radiation Exposure Statement: **
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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. 
Xiaoling 166.4 426
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