Changes for page LA66 LoRaWAN Shield User Manual
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... ... @@ -1,475 +1,264 @@ 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 LoRaWAN Module = 10 - 11 - 12 -== 1.1 What is LA66 LoRaWAN Module == 13 - 14 - 15 -((( 16 16 (% 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. 17 -))) 18 18 19 -((( 20 20 (% 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. 21 -))) 22 22 23 -((( 24 24 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration. 25 -))) 26 26 27 -((( 28 28 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. 29 -))) 30 30 31 -((( 32 32 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures. 33 -))) 34 34 19 +== Features == 35 35 36 -== 1.2 Features == 37 37 38 -* Support LoRaWAN v1.0.4 protocol 39 -* Support peer-to-peer protocol 40 -* TCXO crystal to ensure RF performance on low temperature 41 -* SMD Antenna pad and i-pex antenna connector 42 -* Available in different frequency LoRaWAN frequency bands. 43 -* World-wide unique OTAA keys. 44 -* AT Command via UART-TTL interface 45 -* Firmware upgradable via UART interface 46 -* Ultra-long RF range 22 +== Specification == 47 47 48 - 49 - 50 -== 1.3 Specification == 51 - 52 -* CPU: 32-bit 48 MHz 53 -* Flash: 256KB 54 -* RAM: 64KB 55 -* Input Power Range: 1.8v ~~ 3.7v 56 -* Power Consumption: < 4uA. 57 -* Frequency Range: 150 MHz ~~ 960 MHz 58 -* Maximum Power +22 dBm constant RF output 59 -* High sensitivity: -148 dBm 60 -* Temperature: 61 -** Storage: -55 ~~ +125℃ 62 -** Operating: -40 ~~ +85℃ 63 -* Humidity: 64 -** Storage: 5 ~~ 95% (Non-Condensing) 65 -** Operating: 10 ~~ 95% (Non-Condensing) 66 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 67 -* LoRa Rx current: <9 mA 68 -* I/O Voltage: 3.3v 69 - 70 - 71 - 72 -== 1.4 AT Command == 73 - 74 -AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents. 75 - 76 - 77 -== 1.5 Dimension == 78 - 79 79 [[image:image-20220517072526-1.png]] 80 80 26 +Input Power Range: 1.8v ~~ 3.7v 81 81 28 +Power Consumption: < 4uA. 82 82 83 - == 1.6 PinMapping==30 +Frequency Range: 150 MHz ~~ 960 MHz 84 84 32 +Maximum Power +22 dBm constant RF output 85 85 86 - [[image:image-20220523101537-1.png]]34 +High sensitivity: -148 dBm 87 87 36 +Temperature: 88 88 38 +* Storage: -55 ~~ +125℃ 39 +* Operating: -40 ~~ +85℃ 89 89 90 - == 1.7 LandPattern ==41 +Humidity: 91 91 92 -[[image:image-20220517072821-2.png]] 43 +* Storage: 5 ~~ 95% (Non-Condensing) 44 +* Operating: 10 ~~ 95% (Non-Condensing) 93 93 46 +LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 94 94 48 +LoRa Rx current: <9 mA 95 95 96 - =2. LA66 LoRaWAN Shield=50 +I/O Voltage: 3.3v 97 97 98 98 99 -== 2.1Overview==53 +== AT Command == 100 100 101 - LA66LoRaWAN Shield isthe Arduino shieldbaseon LA66. UserscanuseLA66 LoRaWANShieldtorapidlyaddLoRaWAN or peer-to-peerLoRawirelessfunctiontoArduinoprojects.55 +AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents. 102 102 103 103 104 -== 2.2Features==58 +== Pin Mapping == 105 105 106 -* Arduino Shield base on LA66 LoRaWAN module 107 -* Support LoRaWAN v1.0.4 protocol 108 -* Support peer-to-peer protocol 109 -* TCXO crystal to ensure RF performance on low temperature 110 -* SMA connector 111 -* Available in different frequency LoRaWAN frequency bands. 112 -* World-wide unique OTAA keys. 113 -* AT Command via UART-TTL interface 114 -* Firmware upgradable via UART interface 115 -* Ultra-long RF range 60 +[[image:image-20220523101537-1.png]] 116 116 62 +== Land Pattern == 117 117 64 +[[image:image-20220517072821-2.png]] 118 118 119 -== 2.3 Specification == 120 120 121 -* CPU: 32-bit 48 MHz 122 -* Flash: 256KB 123 -* RAM: 64KB 124 -* Input Power Range: 1.8v ~~ 3.7v 125 -* Power Consumption: < 4uA. 126 -* Frequency Range: 150 MHz ~~ 960 MHz 127 -* Maximum Power +22 dBm constant RF output 128 -* High sensitivity: -148 dBm 129 -* Temperature: 130 -** Storage: -55 ~~ +125℃ 131 -** Operating: -40 ~~ +85℃ 132 -* Humidity: 133 -** Storage: 5 ~~ 95% (Non-Condensing) 134 -** Operating: 10 ~~ 95% (Non-Condensing) 135 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 136 -* LoRa Rx current: <9 mA 137 -* I/O Voltage: 3.3v 67 +== Part Number == 138 138 69 +Part Number: **LA66-XXX** 139 139 71 +**XX**: The default frequency band 140 140 141 -== 2.4 Pin Mapping & LED == 73 +* **AS923**: LoRaWAN AS923 band 74 +* **AU915**: LoRaWAN AU915 band 75 +* **EU433**: LoRaWAN EU433 band 76 +* **EU868**: LoRaWAN EU868 band 77 +* **KR920**: LoRaWAN KR920 band 78 +* **US915**: LoRaWAN US915 band 79 +* **IN865**: LoRaWAN IN865 band 80 +* **CN470**: LoRaWAN CN470 band 142 142 82 += LA66 LoRaWAN Shield = 143 143 84 +LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN. 144 144 145 -== 2.5Example: Use AT Commandtocommunicate withLA66module via Arduino UNO.==86 +== Pin Mapping & LED == 146 146 88 +== Example: Use AT Command to communicate with LA66 module via Arduino UNO. == 147 147 90 +== Example: Join TTN network and send an uplink message, get downlink message. == 148 148 149 -== 2.6Example:JoinTTN networkand send an uplink message,getdownlinkmessage. ==92 +== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. == 150 150 94 +== Upgrade Firmware of LA66 LoRaWAN Shield == 151 151 96 +=== what needs to be used === 152 152 153 - == 2.7Example:Log TemperatureSensor(DHT11) andsend dataoTTN,showitinDataCake. ==98 +1.LA66 LoRaWAN Shield that needs to be upgraded 154 154 100 +2.Arduino 155 155 102 +3.USB TO TTL 156 156 157 - == 2.8 UpgradeFirmwareof LA66 LoRaWAN Shield ==104 +[[image:image-20220602100052-2.png]] 158 158 106 +=== Wiring Schematic === 159 159 160 - === 2.8.1 Items needed for update===108 +[[image:image-20220602101311-3.png]] 161 161 162 -1. LA66 LoRaWAN Shield 163 -1. Arduino 164 -1. USB TO TTL Adapter 110 +LA66 LoRaWAN Shield >>>>>>>>>>>>USB TTL 165 165 112 +GND >>>>>>>>>>>>GND 166 166 114 +TXD >>>>>>>>>>>>TXD 167 167 116 +RXD >>>>>>>>>>>>RXD 168 168 169 - [[image:image-20220602100052-2.png||height="385"width="600"]]118 +JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap 170 170 120 +Connect to the PC after connecting the wires 171 171 172 - ===2.8.2Connection ===122 +[[image:image-20220602102240-4.png]] 173 173 124 +=== Upgrade steps === 174 174 175 - [[image:image-20220602101311-3.png||height="276"width="600"]]126 +==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ==== 176 176 128 +[[image:image-20220602102824-5.png]] 177 177 178 -((( 179 -(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) **<->** (% style="color:blue" %)**USB TTL** 180 -))) 130 +==== Press the RST switch on the LA66 LoRaWAN Shield once ==== 181 181 182 -((( 183 -(% style="background-color:yellow" %)**GND <-> GND 184 -TXD <-> TXD 185 -RXD <-> RXD** 186 -))) 132 +[[image:image-20220602104701-12.png]] 187 187 134 +==== Open the upgrade application software ==== 188 188 189 - Put ajumpercaponJP6ofLA66LoRaWANShield. (the jumpers topoweronA66 module)136 +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/]] 190 190 191 -Connect USB TTL Adapter to PC after connecting the wires 192 - 193 - 194 -[[image:image-20220602102240-4.png||height="304" width="600"]] 195 - 196 - 197 -=== 2.8.3 Upgrade steps === 198 - 199 - 200 -==== 1. Switch SW1 to put in ISP position ==== 201 - 202 - 203 -[[image:image-20220602102824-5.png||height="306" width="600"]] 204 - 205 - 206 - 207 -==== 2. Press the RST switch once ==== 208 - 209 - 210 -[[image:image-20220602104701-12.png||height="285" width="600"]] 211 - 212 - 213 - 214 -==== 3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ==== 215 - 216 - 217 -((( 218 -(% 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/]]** 219 -))) 220 - 221 - 222 222 [[image:image-20220602103227-6.png]] 223 223 224 - 225 225 [[image:image-20220602103357-7.png]] 226 226 142 +===== Select the COM port corresponding to USB TTL ===== 227 227 228 - 229 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %) 230 -(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL** 231 - 232 - 233 233 [[image:image-20220602103844-8.png]] 234 234 146 +===== Select the bin file to burn ===== 235 235 236 - 237 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %) 238 -(% style="color:blue" %)**3. Select the bin file to burn** 239 - 240 - 241 241 [[image:image-20220602104144-9.png]] 242 242 243 - 244 244 [[image:image-20220602104251-10.png]] 245 245 246 - 247 247 [[image:image-20220602104402-11.png]] 248 248 154 +===== Click to start the download ===== 249 249 250 - 251 -(% class="wikigeneratedid" id="HClicktostartthedownload" %) 252 -(% style="color:blue" %)**4. Click to start the download** 253 - 254 254 [[image:image-20220602104923-13.png]] 255 255 158 +===== The following figure appears to prove that the burning is in progress ===== 256 256 257 - 258 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %) 259 -(% style="color:blue" %)**5. Check update process** 260 - 261 - 262 262 [[image:image-20220602104948-14.png]] 263 263 162 +===== The following picture appears to prove that the burning is successful ===== 264 264 265 - 266 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %) 267 -(% style="color:blue" %)**The following picture shows that the burning is successful** 268 - 269 269 [[image:image-20220602105251-15.png]] 270 270 166 += LA66 USB LoRaWAN Adapter = 271 271 168 +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. 272 272 273 - =3.LA66USB LoRaWANAdapter=170 +Before use, please make sure that the computer has installed the CP2102 driver 274 274 172 +== Pin Mapping & LED == 275 275 276 -== 3.1Overview==174 +== Example Send & Get Messages via LoRaWAN in PC == 277 277 278 - LA66 USB LoRaWAN Adapter is designed to fast turnUSB devicestosupportLoRaWAN wirelessfeatures. It combines a CP2101 USB TTLChip and LA66 LoRaWANmodule which caneasytoadd LoRaWAN wireless featuretoPC/ Mobile phone or an embedded device that has USB Interface.176 +Connect the LA66 LoRa Shield to the PC 279 279 178 +[[image:image-20220602171217-1.png||height="615" width="915"]] 280 280 281 -== 3.2 Features == 282 - 283 -* LoRaWAN USB adapter base on LA66 LoRaWAN module 284 -* Ultra-long RF range 285 -* Support LoRaWAN v1.0.4 protocol 286 -* Support peer-to-peer protocol 287 -* TCXO crystal to ensure RF performance on low temperature 288 -* Spring RF antenna 289 -* Available in different frequency LoRaWAN frequency bands. 290 -* World-wide unique OTAA keys. 291 -* AT Command via UART-TTL interface 292 -* Firmware upgradable via UART interface 293 - 294 - 295 - 296 -== 3.3 Specification == 297 - 298 -* CPU: 32-bit 48 MHz 299 -* Flash: 256KB 300 -* RAM: 64KB 301 -* Input Power Range: 5v 302 -* Frequency Range: 150 MHz ~~ 960 MHz 303 -* Maximum Power +22 dBm constant RF output 304 -* High sensitivity: -148 dBm 305 -* Temperature: 306 -** Storage: -55 ~~ +125℃ 307 -** Operating: -40 ~~ +85℃ 308 -* Humidity: 309 -** Storage: 5 ~~ 95% (Non-Condensing) 310 -** Operating: 10 ~~ 95% (Non-Condensing) 311 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 312 -* LoRa Rx current: <9 mA 313 - 314 - 315 - 316 -== 3.4 Pin Mapping & LED == 317 - 318 - 319 - 320 -== 3.5 Example: Send & Get Messages via LoRaWAN in PC == 321 - 322 - 323 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 324 - 325 - 326 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC** 327 - 328 - 329 -[[image:image-20220602171217-1.png||height="538" width="800"]] 330 - 331 - 332 332 Open the serial port tool 333 333 334 334 [[image:image-20220602161617-8.png]] 335 335 336 -[[image:image-20220602161718-9.png||height=" 457" width="800"]]184 +[[image:image-20220602161718-9.png||height="529" width="927"]] 337 337 186 +Press the reset switch RST on the LA66 LoRa Shield. 338 338 188 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network 339 339 340 - (% style="color:blue" %)**2. Press the reset switch RST on theLA66USB LoRaWAN Adapter to reset it.**190 +[[image:image-20220602161935-10.png]] 341 341 342 - Thefollowingpicture appearstoprove that the LA66 USBLoRaWAN Adapterccessfully Jointhe LoRaWAN network192 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data> 343 343 344 - 345 -[[image:image-20220602161935-10.png||height="498" width="800"]] 346 - 347 - 348 - 349 -(% style="color:blue" %)**3. See Uplink Command** 350 - 351 -Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 352 - 353 353 example: AT+SENDB=01,02,8,05820802581ea0a5 354 354 355 -[[image:image-20220602162157-11.png ||height="497" width="800"]]196 +[[image:image-20220602162157-11.png]] 356 356 198 +Check to see if TTN received the message 357 357 200 +[[image:image-20220602162331-12.png||height="547" width="1044"]] 358 358 359 - (%style="color:blue"%)**4.ChecktoseeifTTNreceivedthemessage**202 +== Example Send & Get Messages via LoRaWAN in RPi == 360 360 361 - [[image:image-20220602162331-12.png||height="420"width="800"]]204 +Connect the LA66 LoRa Shield to the RPI 362 362 206 +[[image:image-20220602171233-2.png||height="592" width="881"]] 363 363 208 +Log in to the RPI's terminal and connect to the serial port 364 364 365 - == 3.6 Example: Send PC's CPU/RAM usageto TTN viaython==210 +[[image:image-20220602153146-3.png]] 366 366 212 +Press the reset switch RST on the LA66 LoRa Shield. 213 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network 367 367 368 - **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]]215 +[[image:image-20220602154928-5.png]] 369 369 217 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data> 370 370 371 -(% style="color:red" %)**Preconditions:** 372 - 373 -(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine** 374 - 375 -(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter is registered with TTN** 376 - 377 - 378 - 379 -(% style="color:blue" %)**Steps for usage:** 380 - 381 -(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter 382 - 383 -(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN 384 - 385 -[[image:image-20220602115852-3.png||height="450" width="1187"]] 386 - 387 - 388 - 389 -== 3.7 Example: Send & Get Messages via LoRaWAN in RPi == 390 - 391 - 392 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 393 - 394 - 395 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi** 396 - 397 -[[image:image-20220602171233-2.png||height="538" width="800"]] 398 - 399 - 400 - 401 -(% style="color:blue" %)**2. Install Minicom in RPi.** 402 - 403 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal 404 - 405 - (% style="background-color:yellow" %)**apt update** 406 - 407 - (% style="background-color:yellow" %)**apt install minicom** 408 - 409 - 410 -Use minicom to connect to the RPI's terminal 411 - 412 -[[image:image-20220602153146-3.png||height="439" width="500"]] 413 - 414 - 415 - 416 -(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.** 417 - 418 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network. 419 - 420 - 421 -[[image:image-20220602154928-5.png||height="436" width="500"]] 422 - 423 - 424 - 425 -(% style="color:blue" %)**4. Send Uplink message** 426 - 427 -Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 428 - 429 429 example: AT+SENDB=01,02,8,05820802581ea0a5 430 430 221 +[[image:image-20220602160339-6.png]] 431 431 432 -[[image:image-20220602160339-6.png||height="517" width="600"]] 433 - 434 - 435 - 436 436 Check to see if TTN received the message 437 437 438 -[[image:image-20220602160627-7.png||height=" 369" width="800"]]225 +[[image:image-20220602160627-7.png||height="468" width="1013"]] 439 439 227 +=== Install Minicom === 440 440 229 +Enter the following command in the RPI terminal 441 441 442 - == 3.8 Example: LA66 USB Module gota message from LA66 LoRa Shieldnd sendthesensor data to NodeRed. ==231 +apt update 443 443 233 +[[image:image-20220602143155-1.png]] 444 444 235 +apt install minicom 445 445 446 - == 3.9 UpgradeFirmwareof LA66 USB LoRaWAN Adapter ==237 +[[image:image-20220602143744-2.png]] 447 447 239 +=== Send PC's CPU/RAM usage to TTN via script. === 448 448 241 +==== Take python as an example: ==== 449 449 243 +===== Preconditions: ===== 450 450 451 - = 4.OrderInfo=245 +1.LA66 USB LoRaWAN Adapter works fine 452 452 247 +2.LA66 USB LoRaWAN Adapter is registered with TTN 453 453 454 - **Part Number:** (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue"%)**LA66-LoRaWAN-Shield-XXX**(%%) **or**(% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**249 +===== Steps for usage ===== 455 455 251 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter 456 456 457 - (%style="color:blue"%)**XXX**(%%):Thedefaultfrequencyband253 +2.Run the script and see the TTN 458 458 459 -* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band 460 -* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band 461 -* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band 462 -* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band 463 -* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band 464 -* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band 465 -* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band 466 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 467 -* (% style="color:red" %)**PP**(%%): Peer to Peer LoRa Protocol 255 +[[image:image-20220602115852-3.png]] 468 468 469 469 470 470 471 -= 5.Reference =259 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. == 472 472 473 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]] 474 474 262 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter == 263 + 475 475