Changes for page LA66 LoRaWAN Shield User Manual
Last modified by Xiaoling on 2023/05/26 14:19
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... ... @@ -1,1 +1,1 @@ 1 -LA66 LoRaWAN Module1 +LA66 LoRaWAN Shield User Manual - Content
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... ... @@ -1,98 +1,61 @@ 1 1 2 2 3 +**Table of Contents:** 4 + 3 3 {{toc/}} 4 4 5 5 6 6 7 -= 1. LA66 LoRaWAN Module = 8 8 10 += 1. LA66 LoRaWAN Shield = 9 9 10 -== 1.1 What is LA66 LoRaWAN Module == 11 11 13 +== 1.1 Overview == 12 12 13 -(% 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. 14 14 15 -(% 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. 16 +((( 17 +[[image:image-20220715000826-2.png||height="145" width="220"]] 18 +))) 16 16 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 +((( 17 17 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration. 37 +))) 38 +))) 18 18 40 +((( 41 +((( 19 19 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 +))) 20 20 46 +((( 47 +((( 21 21 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures. 49 +))) 50 +))) 22 22 23 23 53 + 24 24 == 1.2 Features == 25 25 26 -* Support LoRaWAN v1.0.4 protocol 27 -* Support peer-to-peer protocol 28 -* TCXO crystal to ensure RF performance on low temperature 29 -* SMD Antenna pad and i-pex antenna connector 30 -* Available in different frequency LoRaWAN frequency bands. 31 -* World-wide unique OTAA keys. 32 -* AT Command via UART-TTL interface 33 -* Firmware upgradable via UART interface 34 -* Ultra-long RF range 35 35 36 - 37 - 38 -== 1.3 Specification == 39 - 40 -* CPU: 32-bit 48 MHz 41 -* Flash: 256KB 42 -* RAM: 64KB 43 -* Input Power Range: 1.8v ~~ 3.7v 44 -* Power Consumption: < 4uA. 45 -* Frequency Range: 150 MHz ~~ 960 MHz 46 -* Maximum Power +22 dBm constant RF output 47 -* High sensitivity: -148 dBm 48 -* Temperature: 49 -** Storage: -55 ~~ +125℃ 50 -** Operating: -40 ~~ +85℃ 51 -* Humidity: 52 -** Storage: 5 ~~ 95% (Non-Condensing) 53 -** Operating: 10 ~~ 95% (Non-Condensing) 54 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 55 -* LoRa Rx current: <9 mA 56 -* I/O Voltage: 3.3v 57 - 58 - 59 - 60 -== 1.4 AT Command == 61 - 62 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents. 63 - 64 - 65 -== 1.5 Dimension == 66 - 67 -[[image:image-20220517072526-1.png]] 68 - 69 - 70 - 71 -== 1.6 Pin Mapping == 72 - 73 - 74 -[[image:image-20220523101537-1.png]] 75 - 76 - 77 - 78 -== 1.7 Land Pattern == 79 - 80 -[[image:image-20220517072821-2.png]] 81 - 82 - 83 - 84 -= 2. LA66 LoRaWAN Shield = 85 - 86 - 87 -== 2.1 Overview == 88 - 89 -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. 90 - 91 - 92 -== 2.2 Features == 93 - 94 94 * Arduino Shield base on LA66 LoRaWAN module 95 -* Support LoRaWAN v1.0. 4protocol58 +* Support LoRaWAN v1.0.3 protocol 96 96 * Support peer-to-peer protocol 97 97 * TCXO crystal to ensure RF performance on low temperature 98 98 * SMA connector ... ... @@ -104,8 +104,9 @@ 104 104 105 105 106 106 107 -== 2.3 Specification ==70 +== 1.3 Specification == 108 108 72 + 109 109 * CPU: 32-bit 48 MHz 110 110 * Flash: 256KB 111 111 * RAM: 64KB ... ... @@ -126,311 +126,250 @@ 126 126 127 127 128 128 129 -== 2.4 Pin Mapping & LED ==93 +== 1.4 Pin Mapping & LED == 130 130 131 131 96 +[[image:image-20220817085048-1.png||height="533" width="734"]] 132 132 133 -== 2.5 Example: Use AT Command to communicate with LA66 module via Arduino UNO. == 134 134 135 135 100 +~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 136 136 137 -== 2.6 Example: Join TTN network and send an uplink message, get downlink message. == 138 138 105 +[[image:image-20220820112305-1.png||height="515" width="749"]] 139 139 140 140 141 -== 2.7 Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. == 142 142 109 +== 1.5 Example: Use AT Command to communicate with LA66 module via Arduino UNO. == 143 143 144 144 145 - ==2.8 UpgradeFirmware of LA66 LoRaWAN Shield ==112 +**Show connection diagram:** 146 146 147 147 148 - === 2.8.1 Itemsneededfor update===115 +[[image:image-20220723170210-2.png||height="908" width="681"]] 149 149 150 -1. LA66 LoRaWAN Shield 151 -1. Arduino 152 -1. USB TO TTL Adapter 153 153 154 -[[image:image-20220602100052-2.png||height="385" width="600"]] 155 155 119 +(% style="color:blue" %)**1. open Arduino IDE** 156 156 157 -=== 2.8.2 Connection === 158 158 122 +[[image:image-20220723170545-4.png]] 159 159 160 -[[image:image-20220602101311-3.png||height="276" width="600"]] 161 161 162 162 163 -(% style="color:blue" %)** LA66 LoRaWAN Shield**(%%)**<->** (% style="color:blue" %)**USB TTL**126 +(% style="color:blue" %)**2. Open project** 164 164 165 -(% style="background-color:yellow" %)**GND <-> GND 166 -TXD <-> TXD 167 -RXD <-> RXD** 168 168 129 +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]] 169 169 170 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module) 171 171 172 - Connect USB TTL Adapter to PCafter connectingthe wires132 +[[image:image-20220726135239-1.png]] 173 173 174 174 175 -[[image:image-20220602102240-4.png||height="304" width="600"]] 176 176 136 +(% 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** 177 177 178 -=== 2.8.3 Upgrade steps === 179 179 139 +[[image:image-20220726135356-2.png]] 180 180 181 -==== 1. Switch SW1 to put in ISP position ==== 182 182 183 183 184 - [[image:image-20220602102824-5.png||height="306"width="600"]]143 +(% style="color:blue" %)**4. After the upload is successful, open the serial port monitoring and send the AT command** 185 185 186 186 146 +[[image:image-20220723172235-7.png||height="480" width="1027"]] 187 187 188 -==== 2. Press the RST switch once ==== 189 189 190 190 191 - [[image:image-20220602104701-12.png||height="285"width="600"]]150 +== 1.6 Example: Join TTN network and send an uplink message, get downlink message. == 192 192 193 193 153 +(% style="color:blue" %)**1. Open project** 194 194 195 -==== 3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ==== 196 196 156 +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]] 197 197 198 -(% 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/]]** 199 199 159 +[[image:image-20220723172502-8.png]] 200 200 201 -[[image:image-20220602103227-6.png]] 202 202 203 203 204 - [[image:image-20220602103357-7.png]]163 +(% 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** 205 205 206 206 166 +[[image:image-20220723172938-9.png||height="652" width="1050"]] 207 207 208 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %) 209 -(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL** 210 210 211 211 212 - [[image:image-20220602103844-8.png]]170 +== 1.7 Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in Node-RED. == 213 213 214 214 173 +(% style="color:blue" %)**1. Open project** 215 215 216 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %) 217 -(% style="color:blue" %)**3. Select the bin file to burn** 218 218 176 +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]] 219 219 220 -[[image:image-20220602104144-9.png]] 221 221 179 +[[image:image-20220723173341-10.png||height="581" width="1014"]] 222 222 223 -[[image:image-20220602104251-10.png]] 224 224 225 225 226 - [[image:image-20220602104402-11.png]]183 +(% 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** 227 227 228 228 186 +[[image:image-20220723173950-11.png||height="665" width="1012"]] 229 229 230 -(% class="wikigeneratedid" id="HClicktostartthedownload" %) 231 -(% style="color:blue" %)**4. Click to start the download** 232 232 233 -[[image:image-20220602104923-13.png]] 234 234 190 +(% style="color:blue" %)**3. Integration into Node-red via TTNV3** 235 235 236 236 237 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %) 238 -(% style="color:blue" %)**5. Check update process** 193 +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/]] 239 239 240 240 241 -[[image:image-20220 602104948-14.png]]196 +[[image:image-20220723175700-12.png||height="602" width="995"]] 242 242 243 243 244 244 245 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %) 246 -(% style="color:blue" %)**The following picture shows that the burning is successful** 200 +== 1.8 Upgrade Firmware of LA66 LoRaWAN Shield == 247 247 248 -[[image:image-20220602105251-15.png]] 249 249 203 +=== 1.8.1 Items needed for update === 250 250 251 251 252 -= 3. LA66 USB LoRaWAN Adapter = 206 +1. LA66 LoRaWAN Shield 207 +1. Arduino 208 +1. USB TO TTL Adapter 253 253 254 254 255 - == 3.1 Overview==211 +[[image:image-20220602100052-2.png||height="385" width="600"]] 256 256 257 -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. 258 258 259 259 260 -== 3.2Features==215 +=== 1.8.2 Connection === 261 261 262 -* LoRaWAN USB adapter base on LA66 LoRaWAN module 263 -* Ultra-long RF range 264 -* Support LoRaWAN v1.0.4 protocol 265 -* Support peer-to-peer protocol 266 -* TCXO crystal to ensure RF performance on low temperature 267 -* Spring RF antenna 268 -* Available in different frequency LoRaWAN frequency bands. 269 -* World-wide unique OTAA keys. 270 -* AT Command via UART-TTL interface 271 -* Firmware upgradable via UART interface 272 272 218 +[[image:image-20220602101311-3.png||height="276" width="600"]] 273 273 274 274 275 -== 3.3 Specification == 221 +((( 222 +(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) **<->** (% style="color:blue" %)**USB TTL** 223 +))) 276 276 277 -* CPU: 32-bit 48 MHz 278 -* Flash: 256KB 279 -* RAM: 64KB 280 -* Input Power Range: 5v 281 -* Frequency Range: 150 MHz ~~ 960 MHz 282 -* Maximum Power +22 dBm constant RF output 283 -* High sensitivity: -148 dBm 284 -* Temperature: 285 -** Storage: -55 ~~ +125℃ 286 -** Operating: -40 ~~ +85℃ 287 -* Humidity: 288 -** Storage: 5 ~~ 95% (Non-Condensing) 289 -** Operating: 10 ~~ 95% (Non-Condensing) 290 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 291 -* LoRa Rx current: <9 mA 225 +((( 226 +(% style="background-color:yellow" %)**GND <-> GND 227 +TXD <-> TXD 228 +RXD <-> RXD** 229 +))) 292 292 293 293 232 +Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module) 294 294 295 - ==3.4PinMapping&LED ==234 +Connect USB TTL Adapter to PC after connecting the wires 296 296 297 297 237 +[[image:image-20220602102240-4.png||height="304" width="600"]] 298 298 299 -== 3.5 Example: Send & Get Messages via LoRaWAN in PC == 300 300 301 301 302 - Assumeuseralready input the LA66USB LoRaWAN AdapterOTAA Keys in TTNandthereisalready TTN network coverage.241 +=== 1.8.3 Upgrade steps === 303 303 304 304 305 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC** 306 306 245 +==== (% style="color:blue" %)1. Switch SW1 to put in ISP position(%%) ==== 307 307 308 -[[image:image-20220602171217-1.png||height="538" width="800"]] 309 309 248 +[[image:image-20220602102824-5.png||height="306" width="600"]] 310 310 311 -Open the serial port tool 312 312 313 -[[image:image-20220602161617-8.png]] 314 314 315 - [[image:image-20220602161718-9.png||height="457"width="800"]]252 +==== (% style="color:blue" %)2. Press the RST switch once(%%) ==== 316 316 317 317 255 +[[image:image-20220817085447-1.png]] 318 318 319 -(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.** 320 320 321 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network 322 322 323 323 324 - [[image:image-20220602161935-10.png||height="498"width="800"]]260 +==== (% style="color:blue" %)3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade(%%) ==== 325 325 326 326 263 +((( 264 +(% 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]]** 265 +))) 327 327 328 -(% style="color:blue" %)**3. See Uplink Command** 329 329 330 - Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**268 +[[image:image-20220602103227-6.png]] 331 331 332 -example: AT+SENDB=01,02,8,05820802581ea0a5 333 333 334 -[[image:image-202206021 62157-11.png||height="497" width="800"]]271 +[[image:image-20220602103357-7.png]] 335 335 336 336 337 337 338 -(% style="color:blue" %)**4. Check to see if TTN received the message** 275 +(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %) 276 +(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL** 339 339 340 -[[image:image-20220602162331-12.png||height="420" width="800"]] 341 341 279 +[[image:image-20220602103844-8.png]] 342 342 343 343 344 -== 3.6 Example: Send PC's CPU/RAM usage to TTN via python == 345 345 283 +(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %) 284 +(% style="color:blue" %)**3. Select the bin file to burn** 346 346 347 -**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]] 348 348 287 +[[image:image-20220602104144-9.png]] 349 349 350 -(% style="color:red" %)**Preconditions:** 351 351 352 - (% style="color:red" %)**1.LA66 USB LoRaWAN Adapter works fine**290 +[[image:image-20220602104251-10.png]] 353 353 354 -(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter is registered with TTN** 355 355 293 +[[image:image-20220602104402-11.png]] 356 356 357 357 358 -(% style="color:blue" %)**Steps for usage:** 359 359 360 -(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter 297 +(% class="wikigeneratedid" id="HClicktostartthedownload" %) 298 +(% style="color:blue" %)**4. Click to start the download** 361 361 362 -(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN 363 363 364 -[[image:image-202206021 15852-3.png||height="450" width="1187"]]301 +[[image:image-20220602104923-13.png]] 365 365 366 366 367 367 368 -== 3.7 Example: Send & Get Messages via LoRaWAN in RPi == 305 +(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %) 306 +(% style="color:blue" %)**5. Check update process** 369 369 370 370 371 - Assume useralreadyinput theLA66 USB LoRaWAN Adapter OTAA Keys inTTN and there is already TTN network coverage.309 +[[image:image-20220602104948-14.png]] 372 372 373 373 374 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi** 375 375 376 -[[image:image-20220602171233-2.png||height="538" width="800"]] 313 +(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %) 314 +(% style="color:blue" %)**The following picture shows that the burning is successful** 377 377 378 378 317 +[[image:image-20220602105251-15.png]] 379 379 380 -(% style="color:blue" %)**2. Install Minicom in RPi.** 381 381 382 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal 383 383 384 - (% style="background-color:yellow"%)**aptupdate**321 += 2. FAQ = 385 385 386 - (% style="background-color:yellow" %)**apt install minicom** 387 387 324 +== 2.1 How to Compile Source Code for LA66? == 388 388 389 -Use minicom to connect to the RPI's terminal 390 390 391 -[[i mage:image-20220602153146-3.png||height="439"width="500"]]327 +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]] 392 392 393 393 394 394 395 -(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**(%%) 396 -(% style="color:blue" %)The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network 331 += 3. Order Info = 397 397 398 -[[image:image-20220602154928-5.png||height="436" width="500"]] 399 399 334 +**Part Number:** (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) 400 400 401 401 402 -(% style="color:blue" %)**4. Send Uplink message** 403 - 404 -Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 405 - 406 -example: AT+SENDB=01,02,8,05820802581ea0a5 407 - 408 - 409 -[[image:image-20220602160339-6.png||height="517" width="600"]] 410 - 411 - 412 - 413 -Check to see if TTN received the message 414 - 415 -[[image:image-20220602160627-7.png||height="369" width="800"]] 416 - 417 - 418 - 419 -== 3.8 Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. == 420 - 421 - 422 - 423 -== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter == 424 - 425 - 426 - 427 - 428 -= 4. Order Info = 429 - 430 - 431 -**Part Number:** (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or** (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX** 432 - 433 - 434 434 (% style="color:blue" %)**XXX**(%%): The default frequency band 435 435 436 436 * (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band ... ... @@ -446,8 +446,9 @@ 446 446 447 447 448 448 449 -= 5. Reference =352 += 4. Reference = 450 450 451 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]] 452 452 355 +* Hardware Design File for LA66 LoRaWAN Shield : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]] 356 + 453 453
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