Changes for page LA66 LoRaWAN Shield User Manual
Last modified by Xiaoling on 2023/05/26 14:19
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... ... @@ -1,497 +1,144 @@ 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 - =1.LA66 LoRaWANModule=9 +**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 LoRa 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 program, create and connect your things everywhere. 10 10 11 +**LA66 **is a ready-to-use module which includes the LoRaWAN v1.0.4 protocol. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol. 11 11 12 - ==1.1WhatisLA66LoRaWANModule==13 +**Each LA66 **module includes a world unique OTAA key for LoRaWAN registration. 13 13 14 14 15 -((( 16 -[[image:image-20220715000242-1.png||height="110" width="132"]] 17 17 18 -(% 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. 19 -))) 17 +== Specification == 20 20 21 -((( 22 -(% 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. 23 -))) 19 +[[image:image-20220517072526-1.png]] 24 24 25 -((( 26 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration. 27 -))) 21 +Input Power Range: 1.8v ~~ 3.7v 28 28 29 -((( 30 -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. 31 -))) 23 +Power Consumption: < 4uA. 32 32 33 -((( 34 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures. 35 -))) 25 +Frequency Range: 150 MHz ~~ 960 MHz 36 36 27 +Maximum Power +22 dBm constant RF output 37 37 38 - ==1.2 Features==29 +High sensitivity: -148 dBm 39 39 40 -* Support LoRaWAN v1.0.4 protocol 41 -* Support peer-to-peer protocol 42 -* TCXO crystal to ensure RF performance on low temperature 43 -* SMD Antenna pad and i-pex antenna connector 44 -* Available in different frequency LoRaWAN frequency bands. 45 -* World-wide unique OTAA keys. 46 -* AT Command via UART-TTL interface 47 -* Firmware upgradable via UART interface 48 -* Ultra-long RF range 31 +Temperature: 49 49 33 +* Storage: -55 ~~ +125℃ 34 +* Operating: -40 ~~ +85℃ 50 50 51 - == 1.3 Specification ==36 +Humidity: 52 52 53 -* CPU: 32-bit 48 MHz 54 -* Flash: 256KB 55 -* RAM: 64KB 56 -* Input Power Range: 1.8v ~~ 3.7v 57 -* Power Consumption: < 4uA. 58 -* Frequency Range: 150 MHz ~~ 960 MHz 59 -* Maximum Power +22 dBm constant RF output 60 -* High sensitivity: -148 dBm 61 -* Temperature: 62 -** Storage: -55 ~~ +125℃ 63 -** Operating: -40 ~~ +85℃ 64 -* Humidity: 65 -** Storage: 5 ~~ 95% (Non-Condensing) 66 -** Operating: 10 ~~ 95% (Non-Condensing) 67 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 68 -* LoRa Rx current: <9 mA 69 -* I/O Voltage: 3.3v 38 +* Storage: 5 ~~ 95% (Non-Condensing) 39 +* Operating: 10 ~~ 95% (Non-Condensing) 70 70 41 +LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 71 71 72 - == 1.4 AT Command==43 +LoRa Rx current: <9 mA 73 73 74 - ATCommand is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can befound in AT Command documents.45 +I/O Voltage: 3.3v 75 75 76 76 77 -== 1.5Dimension==48 +== AT Command == 78 78 79 - [[image:image-20220517072526-1.png]]50 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents. 80 80 81 81 53 +== Pin Mapping == 82 82 83 -== 1.6 Pin Mapping == 84 - 85 - 86 86 [[image:image-20220523101537-1.png]] 87 87 57 +== Land Pattern == 88 88 89 - 90 -== 1.7 Land Pattern == 91 - 92 92 [[image:image-20220517072821-2.png]] 93 93 94 94 62 +== Part Number == 95 95 96 - =2.LA66LoRaWAN Shield =64 +Part Number: **LA66-XXX** 97 97 66 +**XX**: The default frequency band 98 98 99 -== 2.1 Overview == 68 +* **AS923**: LoRaWAN AS923 band 69 +* **AU915**: LoRaWAN AU915 band 70 +* **EU433**: LoRaWAN EU433 band 71 +* **EU868**: LoRaWAN EU868 band 72 +* **KR920**: LoRaWAN KR920 band 73 +* **US915**: LoRaWAN US915 band 74 +* **IN865**: LoRaWAN IN865 band 75 +* **CN470**: LoRaWAN CN470 band 100 100 77 += LA66 LoRaWAN Shield = 101 101 102 - [[image:image-20220715000826-2.png||height="386"width="449"]]79 +LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN. 103 103 81 +== Pin Mapping & LED == 104 104 105 - LA66LoRaWAN Shieldisthe ArduinoshieldbaseonLA66. Userscan use LA66LoRaWAN Shieldto rapidly add LoRaWAN or peer-to-peerLoRawireless function toArduinoprojects.83 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. == 106 106 107 -((( 108 -(% 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. 109 -))) 85 +== Example: Join TTN network and send an uplink message, get downlink message. == 110 110 111 -((( 112 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration. 113 -))) 87 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. == 114 114 115 -((( 116 -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. 117 -))) 89 +== Upgrade Firmware of LA66 LoRaWAN Shield == 118 118 119 -((( 120 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures. 121 -))) 91 +=== what needs to be used === 122 122 93 +1.LA66 LoRaWAN Shield that needs to be upgraded 123 123 124 - ==2.2 Features ==95 +2.Arduino 125 125 126 -* Arduino Shield base on LA66 LoRaWAN module 127 -* Support LoRaWAN v1.0.4 protocol 128 -* Support peer-to-peer protocol 129 -* TCXO crystal to ensure RF performance on low temperature 130 -* SMA connector 131 -* Available in different frequency LoRaWAN frequency bands. 132 -* World-wide unique OTAA keys. 133 -* AT Command via UART-TTL interface 134 -* Firmware upgradable via UART interface 135 -* Ultra-long RF range 97 +3.USB TO TTL 136 136 99 +[[image:image-20220602100052-2.png]] 137 137 138 -== 2.3Specification==101 +=== Wiring Schematic === 139 139 140 -* CPU: 32-bit 48 MHz 141 -* Flash: 256KB 142 -* RAM: 64KB 143 -* Input Power Range: 1.8v ~~ 3.7v 144 -* Power Consumption: < 4uA. 145 -* Frequency Range: 150 MHz ~~ 960 MHz 146 -* Maximum Power +22 dBm constant RF output 147 -* High sensitivity: -148 dBm 148 -* Temperature: 149 -** Storage: -55 ~~ +125℃ 150 -** Operating: -40 ~~ +85℃ 151 -* Humidity: 152 -** Storage: 5 ~~ 95% (Non-Condensing) 153 -** Operating: 10 ~~ 95% (Non-Condensing) 154 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 155 -* LoRa Rx current: <9 mA 156 -* I/O Voltage: 3.3v 103 +[[image:image-20220602101311-3.png]] 157 157 105 +LA66 LoRaWAN Shield >>>>>>>>>>>>USB TTL 158 158 159 - == 2.4PinMapping&LED==107 +GND >>>>>>>>>>>>GND 160 160 109 +TXD >>>>>>>>>>>>TXD 161 161 111 +RXD >>>>>>>>>>>>RXD 162 162 163 - ==2.5Example: UseATCommand to communicate withLA66 modulevia ArduinoUNO. ==113 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap 164 164 115 +Connect to the PC after connecting the wires 165 165 117 +[[image:image-20220602102240-4.png]] 166 166 167 -== 2.6 Example: Join TTN networkandsendan uplink message, getdownlink message.==119 +=== Upgrade steps === 168 168 169 169 122 += LA66 USB LoRaWAN Adapter = 170 170 171 - ==2.7Example:LogTemperature Sensor(DHT11)andsenddatatoTTN,showit inDataCake.==124 +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. 172 172 126 +== Pin Mapping & LED == 173 173 128 +== Example Send & Get Messages via LoRaWAN in PC == 174 174 175 -== 2.8 UpgradeFirmwareofLA66 LoRaWANShield==130 +== Example Send & Get Messages via LoRaWAN in RPi == 176 176 132 +=== Install USB Driver === 177 177 178 -=== 2.8.1Items needed forupdate===134 +=== Install Minicom === 179 179 180 -1. LA66 LoRaWAN Shield 181 -1. Arduino 182 -1. USB TO TTL Adapter 136 +=== Use AT Command to send an uplink message. === 183 183 184 - [[image:image-20220602100052-2.png||height="385"width="600"]]138 +=== Send CPU/RAM usage to TTN via a script. === 185 185 186 186 187 -== =2.8.2Connection===141 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. == 188 188 189 189 190 -[[image:image-20220602101311-3.png||height="276" width="600"]] 191 - 192 - 193 -((( 194 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) **<->** (% style="color:blue" %)**USB TTL** 195 -))) 196 - 197 -((( 198 -(% style="background-color:yellow" %)**GND <-> GND 199 -TXD <-> TXD 200 -RXD <-> RXD** 201 -))) 202 - 203 - 204 -Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module) 205 - 206 -Connect USB TTL Adapter to PC after connecting the wires 207 - 208 - 209 -[[image:image-20220602102240-4.png||height="304" width="600"]] 210 - 211 - 212 -=== 2.8.3 Upgrade steps === 213 - 214 - 215 -==== 1. Switch SW1 to put in ISP position ==== 216 - 217 - 218 -[[image:image-20220602102824-5.png||height="306" width="600"]] 219 - 220 - 221 - 222 -==== 2. Press the RST switch once ==== 223 - 224 - 225 -[[image:image-20220602104701-12.png||height="285" width="600"]] 226 - 227 - 228 - 229 -==== 3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ==== 230 - 231 - 232 -((( 233 -(% 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/]]** 234 -))) 235 - 236 - 237 -[[image:image-20220602103227-6.png]] 238 - 239 - 240 -[[image:image-20220602103357-7.png]] 241 - 242 - 243 - 244 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %) 245 -(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL** 246 - 247 - 248 -[[image:image-20220602103844-8.png]] 249 - 250 - 251 - 252 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %) 253 -(% style="color:blue" %)**3. Select the bin file to burn** 254 - 255 - 256 -[[image:image-20220602104144-9.png]] 257 - 258 - 259 -[[image:image-20220602104251-10.png]] 260 - 261 - 262 -[[image:image-20220602104402-11.png]] 263 - 264 - 265 - 266 -(% class="wikigeneratedid" id="HClicktostartthedownload" %) 267 -(% style="color:blue" %)**4. Click to start the download** 268 - 269 -[[image:image-20220602104923-13.png]] 270 - 271 - 272 - 273 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %) 274 -(% style="color:blue" %)**5. Check update process** 275 - 276 - 277 -[[image:image-20220602104948-14.png]] 278 - 279 - 280 - 281 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %) 282 -(% style="color:blue" %)**The following picture shows that the burning is successful** 283 - 284 -[[image:image-20220602105251-15.png]] 285 - 286 - 287 - 288 -= 3. LA66 USB LoRaWAN Adapter = 289 - 290 - 291 -== 3.1 Overview == 292 - 293 -[[image:image-20220715001142-3.png||height="145" width="220"]] 294 - 295 -(% style="color:blue" %)**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. 296 - 297 -(% 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. 298 - 299 -Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration. 300 - 301 -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. 302 - 303 -LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures. 304 - 305 - 306 -== 3.2 Features == 307 - 308 -* LoRaWAN USB adapter base on LA66 LoRaWAN module 309 -* Ultra-long RF range 310 -* Support LoRaWAN v1.0.4 protocol 311 -* Support peer-to-peer protocol 312 -* TCXO crystal to ensure RF performance on low temperature 313 -* Spring RF antenna 314 -* Available in different frequency LoRaWAN frequency bands. 315 -* World-wide unique OTAA keys. 316 -* AT Command via UART-TTL interface 317 -* Firmware upgradable via UART interface 318 -* Open Source Mobile App for LoRaWAN signal detect and GPS tracking. 319 - 320 - 321 -== 3.3 Specification == 322 - 323 -* CPU: 32-bit 48 MHz 324 -* Flash: 256KB 325 -* RAM: 64KB 326 -* Input Power Range: 5v 327 -* Frequency Range: 150 MHz ~~ 960 MHz 328 -* Maximum Power +22 dBm constant RF output 329 -* High sensitivity: -148 dBm 330 -* Temperature: 331 -** Storage: -55 ~~ +125℃ 332 -** Operating: -40 ~~ +85℃ 333 -* Humidity: 334 -** Storage: 5 ~~ 95% (Non-Condensing) 335 -** Operating: 10 ~~ 95% (Non-Condensing) 336 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 337 -* LoRa Rx current: <9 mA 338 - 339 - 340 -== 3.4 Pin Mapping & LED == 341 - 342 - 343 - 344 -== 3.5 Example: Send & Get Messages via LoRaWAN in PC == 345 - 346 - 347 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 348 - 349 - 350 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC** 351 - 352 - 353 -[[image:image-20220602171217-1.png||height="538" width="800"]] 354 - 355 - 356 -Open the serial port tool 357 - 358 -[[image:image-20220602161617-8.png]] 359 - 360 -[[image:image-20220602161718-9.png||height="457" width="800"]] 361 - 362 - 363 - 364 -(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.** 365 - 366 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network 367 - 368 - 369 -[[image:image-20220602161935-10.png||height="498" width="800"]] 370 - 371 - 372 - 373 -(% style="color:blue" %)**3. See Uplink Command** 374 - 375 -Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 376 - 377 -example: AT+SENDB=01,02,8,05820802581ea0a5 378 - 379 -[[image:image-20220602162157-11.png||height="497" width="800"]] 380 - 381 - 382 - 383 -(% style="color:blue" %)**4. Check to see if TTN received the message** 384 - 385 -[[image:image-20220602162331-12.png||height="420" width="800"]] 386 - 387 - 388 - 389 -== 3.6 Example: Send PC's CPU/RAM usage to TTN via python == 390 - 391 - 392 -**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]] 393 - 394 - 395 -(% style="color:red" %)**Preconditions:** 396 - 397 -(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine** 398 - 399 -(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter is registered with TTN** 400 - 401 - 402 - 403 -(% style="color:blue" %)**Steps for usage:** 404 - 405 -(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter 406 - 407 -(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN 408 - 409 -[[image:image-20220602115852-3.png||height="450" width="1187"]] 410 - 411 - 412 - 413 -== 3.7 Example: Send & Get Messages via LoRaWAN in RPi == 414 - 415 - 416 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 417 - 418 - 419 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi** 420 - 421 -[[image:image-20220602171233-2.png||height="538" width="800"]] 422 - 423 - 424 - 425 -(% style="color:blue" %)**2. Install Minicom in RPi.** 426 - 427 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal 428 - 429 - (% style="background-color:yellow" %)**apt update** 430 - 431 - (% style="background-color:yellow" %)**apt install minicom** 432 - 433 - 434 -Use minicom to connect to the RPI's terminal 435 - 436 -[[image:image-20220602153146-3.png||height="439" width="500"]] 437 - 438 - 439 - 440 -(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.** 441 - 442 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network. 443 - 444 - 445 -[[image:image-20220602154928-5.png||height="436" width="500"]] 446 - 447 - 448 - 449 -(% style="color:blue" %)**4. Send Uplink message** 450 - 451 -Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 452 - 453 -example: AT+SENDB=01,02,8,05820802581ea0a5 454 - 455 - 456 -[[image:image-20220602160339-6.png||height="517" width="600"]] 457 - 458 - 459 - 460 -Check to see if TTN received the message 461 - 462 -[[image:image-20220602160627-7.png||height="369" width="800"]] 463 - 464 - 465 - 466 -== 3.8 Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. == 467 - 468 - 469 - 470 -== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter == 471 - 472 - 473 - 474 - 475 -= 4. Order Info = 476 - 477 - 478 -**Part Number:** (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or** (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX** 479 - 480 - 481 -(% style="color:blue" %)**XXX**(%%): The default frequency band 482 - 483 -* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band 484 -* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band 485 -* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band 486 -* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band 487 -* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band 488 -* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band 489 -* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band 490 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 491 -* (% style="color:red" %)**PP**(%%): Peer to Peer LoRa Protocol 492 - 493 -= 5. Reference = 494 - 495 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]] 496 - 497 - 144 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
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