Changes for page LA66 LoRaWAN Shield User Manual
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... ... @@ -1,473 +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 -(% 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/]]** 218 - 219 - 220 220 [[image:image-20220602103227-6.png]] 221 221 222 - 223 223 [[image:image-20220602103357-7.png]] 224 224 142 +===== Select the COM port corresponding to USB TTL ===== 225 225 226 - 227 -(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %) 228 -(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL** 229 - 230 - 231 231 [[image:image-20220602103844-8.png]] 232 232 146 +===== Select the bin file to burn ===== 233 233 234 - 235 -(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %) 236 -(% style="color:blue" %)**3. Select the bin file to burn** 237 - 238 - 239 239 [[image:image-20220602104144-9.png]] 240 240 241 - 242 242 [[image:image-20220602104251-10.png]] 243 243 244 - 245 245 [[image:image-20220602104402-11.png]] 246 246 154 +===== Click to start the download ===== 247 247 248 - 249 -(% class="wikigeneratedid" id="HClicktostartthedownload" %) 250 -(% style="color:blue" %)**4. Click to start the download** 251 - 252 252 [[image:image-20220602104923-13.png]] 253 253 158 +===== The following figure appears to prove that the burning is in progress ===== 254 254 255 - 256 -(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %) 257 -(% style="color:blue" %)**5. Check update process** 258 - 259 - 260 260 [[image:image-20220602104948-14.png]] 261 261 162 +===== The following picture appears to prove that the burning is successful ===== 262 262 263 - 264 -(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %) 265 -(% style="color:blue" %)**The following picture shows that the burning is successful** 266 - 267 267 [[image:image-20220602105251-15.png]] 268 268 166 += LA66 USB LoRaWAN Adapter = 269 269 168 +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. 270 270 271 - =3.LA66USB LoRaWANAdapter=170 +Before use, please make sure that the computer has installed the CP2102 driver 272 272 172 +== Pin Mapping & LED == 273 273 274 -== 3.1Overview==174 +== Example Send & Get Messages via LoRaWAN in PC == 275 275 276 - 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 277 277 178 +[[image:image-20220602171217-1.png||height="615" width="915"]] 278 278 279 -== 3.2 Features == 280 - 281 -* LoRaWAN USB adapter base on LA66 LoRaWAN module 282 -* Ultra-long RF range 283 -* Support LoRaWAN v1.0.4 protocol 284 -* Support peer-to-peer protocol 285 -* TCXO crystal to ensure RF performance on low temperature 286 -* Spring RF antenna 287 -* Available in different frequency LoRaWAN frequency bands. 288 -* World-wide unique OTAA keys. 289 -* AT Command via UART-TTL interface 290 -* Firmware upgradable via UART interface 291 - 292 - 293 - 294 -== 3.3 Specification == 295 - 296 -* CPU: 32-bit 48 MHz 297 -* Flash: 256KB 298 -* RAM: 64KB 299 -* Input Power Range: 5v 300 -* Frequency Range: 150 MHz ~~ 960 MHz 301 -* Maximum Power +22 dBm constant RF output 302 -* High sensitivity: -148 dBm 303 -* Temperature: 304 -** Storage: -55 ~~ +125℃ 305 -** Operating: -40 ~~ +85℃ 306 -* Humidity: 307 -** Storage: 5 ~~ 95% (Non-Condensing) 308 -** Operating: 10 ~~ 95% (Non-Condensing) 309 -* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 310 -* LoRa Rx current: <9 mA 311 - 312 - 313 - 314 -== 3.4 Pin Mapping & LED == 315 - 316 - 317 - 318 -== 3.5 Example: Send & Get Messages via LoRaWAN in PC == 319 - 320 - 321 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 322 - 323 - 324 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC** 325 - 326 - 327 -[[image:image-20220602171217-1.png||height="538" width="800"]] 328 - 329 - 330 330 Open the serial port tool 331 331 332 332 [[image:image-20220602161617-8.png]] 333 333 334 -[[image:image-20220602161718-9.png||height=" 457" width="800"]]184 +[[image:image-20220602161718-9.png||height="529" width="927"]] 335 335 186 +Press the reset switch RST on the LA66 LoRa Shield. 336 336 188 +The following picture appears to prove that the LA66 LoRa Shield successfully entered the network 337 337 338 - (% style="color:blue" %)**2. Press the reset switch RST on theLA66USB LoRaWAN Adapter to reset it.**190 +[[image:image-20220602161935-10.png]] 339 339 340 - Thefollowingpicture appearstoprove that the LA66 USBLoRaWAN Adapterccessfully Jointhe LoRaWAN network192 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data> 341 341 342 - 343 -[[image:image-20220602161935-10.png||height="498" width="800"]] 344 - 345 - 346 - 347 -(% style="color:blue" %)**3. See Uplink Command** 348 - 349 -Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 350 - 351 351 example: AT+SENDB=01,02,8,05820802581ea0a5 352 352 353 -[[image:image-20220602162157-11.png ||height="497" width="800"]]196 +[[image:image-20220602162157-11.png]] 354 354 198 +Check to see if TTN received the message 355 355 200 +[[image:image-20220602162331-12.png||height="547" width="1044"]] 356 356 357 - (%style="color:blue"%)**4.ChecktoseeifTTNreceivedthemessage**202 +== Example Send & Get Messages via LoRaWAN in RPi == 358 358 359 - [[image:image-20220602162331-12.png||height="420"width="800"]]204 +Connect the LA66 LoRa Shield to the RPI 360 360 206 +[[image:image-20220602171233-2.png||height="592" width="881"]] 361 361 208 +Log in to the RPI's terminal and connect to the serial port 362 362 363 - == 3.6 Example: Send PC's CPU/RAM usageto TTN viaython==210 +[[image:image-20220602153146-3.png]] 364 364 212 +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 365 365 366 - **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]] 367 367 217 +send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data> 368 368 369 -(% style="color:red" %)**Preconditions:** 370 - 371 -(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine** 372 - 373 -(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter is registered with TTN** 374 - 375 - 376 - 377 -(% style="color:blue" %)**Steps for usage:** 378 - 379 -(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter 380 - 381 -(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN 382 - 383 -[[image:image-20220602115852-3.png||height="450" width="1187"]] 384 - 385 - 386 - 387 -== 3.7 Example: Send & Get Messages via LoRaWAN in RPi == 388 - 389 - 390 -Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 391 - 392 - 393 -(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi** 394 - 395 -[[image:image-20220602171233-2.png||height="538" width="800"]] 396 - 397 - 398 - 399 -(% style="color:blue" %)**2. Install Minicom in RPi.** 400 - 401 -(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal 402 - 403 - (% style="background-color:yellow" %)**apt update** 404 - 405 - (% style="background-color:yellow" %)**apt install minicom** 406 - 407 - 408 -Use minicom to connect to the RPI's terminal 409 - 410 -[[image:image-20220602153146-3.png||height="439" width="500"]] 411 - 412 - 413 - 414 -(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.** 415 - 416 -The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network. 417 - 418 - 419 -[[image:image-20220602154928-5.png||height="436" width="500"]] 420 - 421 - 422 - 423 -(% style="color:blue" %)**4. Send Uplink message** 424 - 425 -Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 426 - 427 427 example: AT+SENDB=01,02,8,05820802581ea0a5 428 428 221 +[[image:image-20220602160339-6.png]] 429 429 430 -[[image:image-20220602160339-6.png||height="517" width="600"]] 431 - 432 - 433 - 434 434 Check to see if TTN received the message 435 435 436 -[[image:image-20220602160627-7.png||height=" 369" width="800"]]225 +[[image:image-20220602160627-7.png||height="468" width="1013"]] 437 437 227 +=== Install Minicom === 438 438 229 +Enter the following command in the RPI terminal 439 439 440 - == 3.8 Example: LA66 USB Module gota message from LA66 LoRa Shieldnd sendthesensor data to NodeRed. ==231 +apt update 441 441 233 +[[image:image-20220602143155-1.png]] 442 442 235 +apt install minicom 443 443 444 - == 3.9 UpgradeFirmwareof LA66 USB LoRaWAN Adapter ==237 +[[image:image-20220602143744-2.png]] 445 445 239 +=== Send PC's CPU/RAM usage to TTN via script. === 446 446 241 +==== Take python as an example: ==== 447 447 243 +===== Preconditions: ===== 448 448 449 - = 4.OrderInfo=245 +1.LA66 USB LoRaWAN Adapter works fine 450 450 247 +2.LA66 USB LoRaWAN Adapter is registered with TTN 451 451 452 - **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 ===== 453 453 251 +1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter 454 454 455 - (%style="color:blue"%)**XXX**(%%):Thedefaultfrequencyband253 +2.Run the script and see the TTN 456 456 457 -* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band 458 -* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band 459 -* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band 460 -* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band 461 -* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band 462 -* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band 463 -* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band 464 -* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 465 -* (% style="color:red" %)**PP**(%%): Peer to Peer LoRa Protocol 255 +[[image:image-20220602115852-3.png]] 466 466 467 467 468 468 469 -= 5.Reference =259 +== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. == 470 470 471 -* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]] 472 472 262 +== Upgrade Firmware of LA66 USB LoRaWAN Adapter == 263 + 473 473