Changes for page LA66 LoRaWAN Shield User Manual
Last modified by Xiaoling on 2023/05/26 14:19
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... ... @@ -1,259 +1,459 @@ 1 -{{box cssClass="floatinginfobox" title="**Contents**"}} 2 -{{toc/}} 3 -{{/box}} 1 + 4 4 5 - =LA66 LoRaWANModule=3 +**Table of Contents:** 6 6 7 - == Whatis LA66 LoRaWAN Module ==5 +{{toc/}} 8 8 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. 12 12 13 - **EachLA66**module includes a world unique OTAA key forLoRaWANregistration.9 += 1. LA66 LoRaWAN Module = 14 14 15 15 12 +== 1.1 What is LA66 LoRaWAN Module == 16 16 17 -== Specification == 18 18 19 - [[image:image-20220517072526-1.png]]15 +(% 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. 20 20 21 - InputPower Range:1.8v~~3.7v17 +(% 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. 22 22 23 - PowerConsumption:< 4uA.19 +Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration. 24 24 25 - FrequencyRange:150MHz~~960MHz21 +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. 26 26 27 - MaximumPower+22dBm constantRFoutput23 +LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures. 28 28 29 -High sensitivity: -148 dBm 30 30 31 - Temperature:26 +== 1.2 Features == 32 32 33 -* Storage: -55 ~~ +125℃ 34 -* Operating: -40 ~~ +85℃ 28 +* Support LoRaWAN v1.0.4 protocol 29 +* Support peer-to-peer protocol 30 +* TCXO crystal to ensure RF performance on low temperature 31 +* SMD Antenna pad and i-pex antenna connector 32 +* Available in different frequency LoRaWAN frequency bands. 33 +* World-wide unique OTAA keys. 34 +* AT Command via UART-TTL interface 35 +* Firmware upgradable via UART interface 36 +* Ultra-long RF range 35 35 36 -Humidity: 37 37 38 -* Storage: 5 ~~ 95% (Non-Condensing) 39 -* Operating: 10 ~~ 95% (Non-Condensing) 40 40 41 - LoRaTxCurrent: <90 mAat+17 dBm, 108 mA at +22 dBm40 +== 1.3 Specification == 42 42 43 -LoRa Rx current: <9 mA 42 +* CPU: 32-bit 48 MHz 43 +* Flash: 256KB 44 +* RAM: 64KB 45 +* Input Power Range: 1.8v ~~ 3.7v 46 +* Power Consumption: < 4uA. 47 +* Frequency Range: 150 MHz ~~ 960 MHz 48 +* Maximum Power +22 dBm constant RF output 49 +* High sensitivity: -148 dBm 50 +* Temperature: 51 +** Storage: -55 ~~ +125℃ 52 +** Operating: -40 ~~ +85℃ 53 +* Humidity: 54 +** Storage: 5 ~~ 95% (Non-Condensing) 55 +** Operating: 10 ~~ 95% (Non-Condensing) 56 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 57 +* LoRa Rx current: <9 mA 58 +* I/O Voltage: 3.3v 44 44 45 -I/O Voltage: 3.3v 46 46 47 47 48 -== AT Command == 62 +== 1.4 AT Command == 49 49 50 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. 51 51 52 52 53 -== PinMapping==67 +== 1.5 Dimension == 54 54 69 +[[image:image-20220517072526-1.png]] 70 + 71 + 72 + 73 +== 1.6 Pin Mapping == 74 + 75 + 55 55 [[image:image-20220523101537-1.png]] 56 56 57 -== Land Pattern == 58 58 79 + 80 +== 1.7 Land Pattern == 81 + 59 59 [[image:image-20220517072821-2.png]] 60 60 61 61 62 -== Part Number == 63 63 64 - PartNumber:**LA66-XXX**86 += 2. LA66 LoRaWAN Shield = 65 65 66 -**XX**: The default frequency band 67 67 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 89 +== 2.1 Overview == 76 76 77 - =LA66 LoRaWAN Shield=91 +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. 78 78 79 -LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN. 80 80 81 -== PinMapping& LED==94 +== 2.2 Features == 82 82 83 -== Example: Use AT Command to communicate with LA66 module via Arduino UNO. == 96 +* Arduino Shield base on LA66 LoRaWAN module 97 +* Support LoRaWAN v1.0.4 protocol 98 +* Support peer-to-peer protocol 99 +* TCXO crystal to ensure RF performance on low temperature 100 +* SMA connector 101 +* Available in different frequency LoRaWAN frequency bands. 102 +* World-wide unique OTAA keys. 103 +* AT Command via UART-TTL interface 104 +* Firmware upgradable via UART interface 105 +* Ultra-long RF range 84 84 85 -== Example: Join TTN network and send an uplink message, get downlink message. == 86 86 87 -== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. == 88 88 89 -== UpgradeFirmware ofLA66 LoRaWAN Shield==109 +== 2.3 Specification == 90 90 91 -=== what needs to be used === 111 +* CPU: 32-bit 48 MHz 112 +* Flash: 256KB 113 +* RAM: 64KB 114 +* Input Power Range: 1.8v ~~ 3.7v 115 +* Power Consumption: < 4uA. 116 +* Frequency Range: 150 MHz ~~ 960 MHz 117 +* Maximum Power +22 dBm constant RF output 118 +* High sensitivity: -148 dBm 119 +* Temperature: 120 +** Storage: -55 ~~ +125℃ 121 +** Operating: -40 ~~ +85℃ 122 +* Humidity: 123 +** Storage: 5 ~~ 95% (Non-Condensing) 124 +** Operating: 10 ~~ 95% (Non-Condensing) 125 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 126 +* LoRa Rx current: <9 mA 127 +* I/O Voltage: 3.3v 92 92 93 -1.LA66 LoRaWAN Shield that needs to be upgraded 94 94 95 -2.Arduino 96 96 97 - 3.USBTOTTL131 +== 2.4 Pin Mapping & LED == 98 98 99 -[[image:image-20220602100052-2.png]] 100 100 101 -=== Wiring Schematic === 102 102 103 - [[image:image-20220602101311-3.png]]135 +== 2.5 Example: Use AT Command to communicate with LA66 module via Arduino UNO. == 104 104 105 -LA66 LoRaWAN Shield >>>>>>>>>>>>USB TTL 106 106 107 -GND >>>>>>>>>>>>GND 108 108 109 - TXD>>>>>>>>>>>>TXD139 +== 2.6 Example: Join TTN network and send an uplink message, get downlink message. == 110 110 111 -RXD >>>>>>>>>>>>RXD 112 112 113 -JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap 114 114 115 - ConnecttothePCafterconnectingthewires143 +== 2.7 Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. == 116 116 117 -[[image:image-20220602102240-4.png]] 118 118 119 -=== Upgrade steps === 120 120 121 -== ==DialtheSW1oftheLA66 LoRaWAN Shieldto the ISP's location as shown in the figure below====147 +== 2.8 Upgrade Firmware of LA66 LoRaWAN Shield == 122 122 123 -[[image:image-20220602102824-5.png]] 124 124 125 -=== =PresstheRSTswitchontheLA66 LoRaWAN Shield once ====150 +=== 2.8.1 Items needed for update === 126 126 127 -[[image:image-20220602104701-12.png]] 152 +1. LA66 LoRaWAN Shield 153 +1. Arduino 154 +1. USB TO TTL Adapter 128 128 129 -==== Open the upgrade application software ==== 130 130 131 -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/]] 132 132 158 + 159 +[[image:image-20220602100052-2.png||height="385" width="600"]] 160 + 161 + 162 +=== 2.8.2 Connection === 163 + 164 + 165 +[[image:image-20220602101311-3.png||height="276" width="600"]] 166 + 167 + 168 +(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) **<->** (% style="color:blue" %)**USB TTL** 169 + 170 +(% style="background-color:yellow" %)**GND <-> GND 171 +TXD <-> TXD 172 +RXD <-> RXD** 173 + 174 + 175 +Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module) 176 + 177 +Connect USB TTL Adapter to PC after connecting the wires 178 + 179 + 180 +[[image:image-20220602102240-4.png||height="304" width="600"]] 181 + 182 + 183 +=== 2.8.3 Upgrade steps === 184 + 185 + 186 +==== 1. Switch SW1 to put in ISP position ==== 187 + 188 + 189 +[[image:image-20220602102824-5.png||height="306" width="600"]] 190 + 191 + 192 + 193 +==== 2. Press the RST switch once ==== 194 + 195 + 196 +[[image:image-20220602104701-12.png||height="285" width="600"]] 197 + 198 + 199 + 200 +==== 3. Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ==== 201 + 202 + 203 +(% 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/]]** 204 + 205 + 133 133 [[image:image-20220602103227-6.png]] 134 134 208 + 135 135 [[image:image-20220602103357-7.png]] 136 136 137 -===== Select the COM port corresponding to USB TTL ===== 138 138 212 + 213 +(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %) 214 +(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL** 215 + 216 + 139 139 [[image:image-20220602103844-8.png]] 140 140 141 -===== Select the bin file to burn ===== 142 142 220 + 221 +(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %) 222 +(% style="color:blue" %)**3. Select the bin file to burn** 223 + 224 + 143 143 [[image:image-20220602104144-9.png]] 144 144 227 + 145 145 [[image:image-20220602104251-10.png]] 146 146 230 + 147 147 [[image:image-20220602104402-11.png]] 148 148 149 -===== Click to start the download ===== 150 150 234 + 235 +(% class="wikigeneratedid" id="HClicktostartthedownload" %) 236 +(% style="color:blue" %)**4. Click to start the download** 237 + 151 151 [[image:image-20220602104923-13.png]] 152 152 153 -===== The following figure appears to prove that the burning is in progress ===== 154 154 241 + 242 +(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %) 243 +(% style="color:blue" %)**5. Check update process** 244 + 245 + 155 155 [[image:image-20220602104948-14.png]] 156 156 157 -===== The following picture appears to prove that the burning is successful ===== 158 158 249 + 250 +(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %) 251 +(% style="color:blue" %)**The following picture shows that the burning is successful** 252 + 159 159 [[image:image-20220602105251-15.png]] 160 160 161 -= LA66 USB LoRaWAN Adapter = 162 162 163 -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. 164 164 165 - Beforeuse,pleasemakesure that the computer hasinstalledheCP2102 driver257 += 3. LA66 USB LoRaWAN Adapter = 166 166 167 -== Pin Mapping & LED == 168 168 169 -== ExampleSend & Get MessagesviaLoRaWAN in PC==260 +== 3.1 Overview == 170 170 171 - Connect the LA66 LoRaShieldto the PC262 +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. 172 172 173 -[[image:image-20220602171217-1.png||height="615" width="915"]] 174 174 265 +== 3.2 Features == 266 + 267 +* LoRaWAN USB adapter base on LA66 LoRaWAN module 268 +* Ultra-long RF range 269 +* Support LoRaWAN v1.0.4 protocol 270 +* Support peer-to-peer protocol 271 +* TCXO crystal to ensure RF performance on low temperature 272 +* Spring RF antenna 273 +* Available in different frequency LoRaWAN frequency bands. 274 +* World-wide unique OTAA keys. 275 +* AT Command via UART-TTL interface 276 +* Firmware upgradable via UART interface 277 + 278 + 279 + 280 +== 3.3 Specification == 281 + 282 +* CPU: 32-bit 48 MHz 283 +* Flash: 256KB 284 +* RAM: 64KB 285 +* Input Power Range: 5v 286 +* Frequency Range: 150 MHz ~~ 960 MHz 287 +* Maximum Power +22 dBm constant RF output 288 +* High sensitivity: -148 dBm 289 +* Temperature: 290 +** Storage: -55 ~~ +125℃ 291 +** Operating: -40 ~~ +85℃ 292 +* Humidity: 293 +** Storage: 5 ~~ 95% (Non-Condensing) 294 +** Operating: 10 ~~ 95% (Non-Condensing) 295 +* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm 296 +* LoRa Rx current: <9 mA 297 + 298 + 299 + 300 +== 3.4 Pin Mapping & LED == 301 + 302 + 303 + 304 +== 3.5 Example: Send & Get Messages via LoRaWAN in PC == 305 + 306 + 307 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 308 + 309 + 310 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC** 311 + 312 + 313 +[[image:image-20220602171217-1.png||height="538" width="800"]] 314 + 315 + 175 175 Open the serial port tool 176 176 177 177 [[image:image-20220602161617-8.png]] 178 178 179 -[[image:image-20220602161718-9.png||height="5 29" width="927"]]320 +[[image:image-20220602161718-9.png||height="457" width="800"]] 180 180 181 -Press the reset switch RST on the LA66 LoRa Shield. 182 182 183 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network 184 184 185 - [[image:image-20220602161935-10.png]]324 +(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.** 186 186 187 - sendinstructions:AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>326 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network 188 188 328 + 329 +[[image:image-20220602161935-10.png||height="498" width="800"]] 330 + 331 + 332 + 333 +(% style="color:blue" %)**3. See Uplink Command** 334 + 335 +Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 336 + 189 189 example: AT+SENDB=01,02,8,05820802581ea0a5 190 190 191 -[[image:image-20220602162157-11.png]] 339 +[[image:image-20220602162157-11.png||height="497" width="800"]] 192 192 193 -Check to see if TTN received the message 194 194 195 -[[image:image-20220602162331-12.png||height="547" width="1044"]] 196 196 197 - ==ExampleSend&GetMessagesviaLoRaWAN inRPi==343 +(% style="color:blue" %)**4. Check to see if TTN received the message** 198 198 199 - Connect theLA66LoRa Shieldtothe RPI345 +[[image:image-20220602162331-12.png||height="420" width="800"]] 200 200 201 -[[image:image-20220602171233-2.png||height="592" width="881"]] 202 202 203 -Log in to the RPI's terminal and connect to the serial port 204 204 205 - [[image:image-20220602153146-3.png]]349 +== 3.6 Example: Send PC's CPU/RAM usage to TTN via python == 206 206 207 -Press the reset switch RST on the LA66 LoRa Shield. 208 -The following picture appears to prove that the LA66 LoRa Shield successfully entered the network 209 209 210 -[[image:imag e-20220602154928-5.png]]352 +**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]] 211 211 212 -send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data> 213 213 355 +(% style="color:red" %)**Preconditions:** 356 + 357 +(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine** 358 + 359 +(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter is registered with TTN** 360 + 361 + 362 + 363 +(% style="color:blue" %)**Steps for usage:** 364 + 365 +(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter 366 + 367 +(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN 368 + 369 +[[image:image-20220602115852-3.png||height="450" width="1187"]] 370 + 371 + 372 + 373 +== 3.7 Example: Send & Get Messages via LoRaWAN in RPi == 374 + 375 + 376 +Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage. 377 + 378 + 379 +(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi** 380 + 381 +[[image:image-20220602171233-2.png||height="538" width="800"]] 382 + 383 + 384 + 385 +(% style="color:blue" %)**2. Install Minicom in RPi.** 386 + 387 +(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal 388 + 389 + (% style="background-color:yellow" %)**apt update** 390 + 391 + (% style="background-color:yellow" %)**apt install minicom** 392 + 393 + 394 +Use minicom to connect to the RPI's terminal 395 + 396 +[[image:image-20220602153146-3.png||height="439" width="500"]] 397 + 398 + 399 + 400 +(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.** 401 + 402 +The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network. 403 + 404 + 405 +[[image:image-20220602154928-5.png||height="436" width="500"]] 406 + 407 + 408 + 409 +(% style="color:blue" %)**4. Send Uplink message** 410 + 411 +Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>** 412 + 214 214 example: AT+SENDB=01,02,8,05820802581ea0a5 215 215 216 -[[image:image-20220602160339-6.png]] 217 217 218 - Check to seefTTN receivede message416 +[[image:image-20220602160339-6.png||height="517" width="600"]] 219 219 220 -[[image:image-20220602160627-7.png||height="468" width="1013"]] 221 221 222 -=== Install Minicom === 223 223 224 - EnterthefollowingcommandintheRPI terminal420 +Check to see if TTN received the message 225 225 226 -apt update422 +[[image:image-20220602160627-7.png||height="369" width="800"]] 227 227 228 -[[image:image-20220602143155-1.png]] 229 229 230 -apt install minicom 231 231 232 - [[image:image-20220602143744-2.png]]426 +== 3.8 Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. == 233 233 234 -=== Send PC's CPU/RAM usage to TTN via script. === 235 235 236 -==== Take python as an example: ==== 237 237 238 -== ===Preconditions:=====430 +== 3.9 Upgrade Firmware of LA66 USB LoRaWAN Adapter == 239 239 240 -1.LA66 USB LoRaWAN Adapter works fine 241 241 242 -2.LA66 USB LoRaWAN Adapter is registered with TTN 243 243 244 -===== Steps for usage ===== 245 245 246 - 1.Presstheresetswitch RESET onthe LA66 USB LoRaWANAdapter435 += 4. Order Info = 247 247 248 -2.Run the script and see the TTN 249 249 250 - [[image:image-20220602115852-3.png]]438 +**Part Number:** (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or** (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX** 251 251 252 252 441 +(% style="color:blue" %)**XXX**(%%): The default frequency band 253 253 254 -== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. == 443 +* (% style="color:red" %)**AS923**(%%): LoRaWAN AS923 band 444 +* (% style="color:red" %)**AU915**(%%): LoRaWAN AU915 band 445 +* (% style="color:red" %)**EU433**(%%): LoRaWAN EU433 band 446 +* (% style="color:red" %)**EU868**(%%): LoRaWAN EU868 band 447 +* (% style="color:red" %)**KR920**(%%): LoRaWAN KR920 band 448 +* (% style="color:red" %)**US915**(%%): LoRaWAN US915 band 449 +* (% style="color:red" %)**IN865**(%%): LoRaWAN IN865 band 450 +* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band 451 +* (% style="color:red" %)**PP**(%%): Peer to Peer LoRa Protocol 255 255 256 256 257 -== Upgrade Firmware of LA66 USB LoRaWAN Adapter == 258 258 455 += 5. Reference = 456 + 457 +* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]] 458 + 259 259