Changes for page SN50v3-LB/LS -- LoRaWAN Sensor Node User Manual
Last modified by Bei Jinggeng on 2025/01/10 15:51
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... ... @@ -16,15 +16,18 @@ 16 16 17 17 == 1.1 What is SN50v3-LB LoRaWAN Generic Node == 18 18 19 - 20 20 (% style="color:blue" %)**SN50V3-LB **(%%)LoRaWAN Sensor Node is a Long Range LoRa Sensor Node. It is designed for outdoor use and powered by (% style="color:blue" %)** 8500mA Li/SOCl2 battery**(%%) for long term use.SN50V3-LB is designed to facilitate developers to quickly deploy industrial level LoRa and IoT solutions. It help 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. 21 21 21 + 22 22 (% style="color:blue" %)**SN50V3-LB wireless part**(%%) is based on SX1262 allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on. 23 23 24 + 24 24 (% style="color:blue" %)**SN50V3-LB **(%%)has a powerful 48Mhz ARM microcontroller with 256KB flash and 64KB RAM. It has multiplex I/O pins to connect to different sensors. 25 25 27 + 26 26 (% style="color:blue" %)**SN50V3-LB**(%%) has a built-in BLE module, user can configure the sensor remotely via Mobile Phone. It also support OTA upgrade via private LoRa protocol for easy maintaining. 27 27 30 + 28 28 SN50V3-LB is the 3^^rd^^ generation of LSN50 series generic sensor node from Dragino. It is an (% style="color:blue" %)**open source project**(%%) and has a mature LoRaWAN stack and application software. User can use the pre-load software for their IoT projects or easily customize the software for different requirements. 29 29 30 30 ... ... @@ -42,7 +42,6 @@ 42 42 43 43 == 1.3 Specification == 44 44 45 - 46 46 (% style="color:#037691" %)**Common DC Characteristics:** 47 47 48 48 * Supply Voltage: built in 8500mAh Li-SOCI2 battery , 2.5v ~~ 3.6v ... ... @@ -79,7 +79,6 @@ 79 79 80 80 == 1.4 Sleep mode and working mode == 81 81 82 - 83 83 (% style="color:blue" %)**Deep Sleep Mode: **(%%)Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life. 84 84 85 85 (% style="color:blue" %)**Working Mode:** (%%)In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode. ... ... @@ -137,7 +137,6 @@ 137 137 138 138 == Hole Option == 139 139 140 - 141 141 SN50v3-LB has different hole size options for different size sensor cable. The options provided are M12, M16 and M20. The definition is as below: 142 142 143 143 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220627104757-1.png?rev=1.1||alt="image-20220627104757-1.png"]] ... ... @@ -291,21 +291,32 @@ 291 291 292 292 ==== 2.3.2.1 MOD~=1 (Default Mode) ==== 293 293 294 - 295 295 In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2. 296 296 297 -(% border="1" cellspacing="4" style="background-color:#f2f2f2;width:520px" %)298 -| (% style="width:50px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="width:20px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:100px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:90px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:130px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:90px;background-color:#D9E2F3;color:#0070C0" %)**2**296 +(% style="width:1110px" %) 297 +|**Size(bytes)**|**2**|(% style="width:191px" %)**2**|(% style="width:78px" %)**2**|(% style="width:216px" %)**1**|(% style="width:308px" %)**2**|(% style="width:154px" %)**2** 299 299 |**Value**|Bat|(% style="width:191px" %)((( 300 -Temperature(DS18B20)(PC13) 299 +Temperature(DS18B20) 300 + 301 +(PC13) 301 301 )))|(% style="width:78px" %)((( 302 -ADC(PA4) 303 +ADC 304 + 305 +(PA4) 303 303 )))|(% style="width:216px" %)((( 304 -Digital in(PB15)&Digital Interrupt(PA8) 307 +Digital in(PB15) & 308 + 309 +Digital Interrupt(PA8) 310 + 311 + 305 305 )))|(% style="width:308px" %)((( 306 -Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor) 313 +Temperature 314 + 315 +(SHT20 or SHT31 or BH1750 Illumination Sensor) 307 307 )))|(% style="width:154px" %)((( 308 -Humidity(SHT20 or SHT31) 317 +Humidity 318 + 319 +(SHT20 or SHT31) 309 309 ))) 310 310 311 311 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220627150949-6.png?rev=1.1||alt="image-20220627150949-6.png"]] ... ... @@ -315,26 +315,34 @@ 315 315 316 316 This mode is target to measure the distance. The payload of this mode is totally 11 bytes. The 8^^th^^ and 9^^th^^ bytes is for the distance. 317 317 318 -(% border="1" cellspacing="4" style="background-color:#f2f2f2;width:520px" %)319 -| (% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:110px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:110px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:140px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:40px;background-color:#D9E2F3;color:#0070C0" %)**2**329 +(% style="width:1011px" %) 330 +|**Size(bytes)**|**2**|(% style="width:196px" %)**2**|(% style="width:87px" %)**2**|(% style="width:189px" %)**1**|(% style="width:208px" %)**2**|(% style="width:117px" %)**2** 320 320 |**Value**|BAT|(% style="width:196px" %)((( 321 -Temperature(DS18B20)(PC13) 332 +Temperature(DS18B20) 333 + 334 +(PC13) 322 322 )))|(% style="width:87px" %)((( 323 -ADC(PA4) 336 +ADC 337 + 338 +(PA4) 324 324 )))|(% style="width:189px" %)((( 325 -Digital in(PB15) & Digital Interrupt(PA8) 340 +Digital in(PB15) & 341 + 342 +Digital Interrupt(PA8) 326 326 )))|(% style="width:208px" %)((( 327 -Distance measure by:1) LIDAR-Lite V3HP 328 -Or 2) Ultrasonic Sensor 344 +Distance measure by: 345 +1) LIDAR-Lite V3HP 346 +Or 347 +2) Ultrasonic Sensor 329 329 )))|(% style="width:117px" %)Reserved 330 330 331 331 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/1656324539647-568.png?rev=1.1||alt="1656324539647-568.png"]] 332 332 333 - (% style="color:blue" %)**Connection of LIDAR-Lite V3HP:**352 +**Connection of LIDAR-Lite V3HP:** 334 334 335 335 [[image:image-20230512173758-5.png||height="563" width="712"]] 336 336 337 - (% style="color:blue" %)**Connection to Ultrasonic Sensor:**356 +**Connection to Ultrasonic Sensor:** 338 338 339 339 Need to remove R1 and R2 resistors to get low power,otherwise there will be 240uA standby current. 340 340 ... ... @@ -342,14 +342,20 @@ 342 342 343 343 For the connection to TF-Mini or TF-Luna , MOD2 payload is as below: 344 344 345 -(% border="1" cellspacing="4" style="background-color:#f2f2f2;width:520px" %)346 -| (% style="width:50px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="width:20px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:100px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:100px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:50px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:120px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:80px;background-color:#D9E2F3;color:#0070C0" %)**2**364 +(% style="width:1113px" %) 365 +|**Size(bytes)**|**2**|(% style="width:183px" %)**2**|(% style="width:173px" %)**1**|(% style="width:84px" %)**2**|(% style="width:323px" %)**2**|(% style="width:188px" %)**2** 347 347 |**Value**|BAT|(% style="width:183px" %)((( 348 -Temperature(DS18B20)(PC13) 367 +Temperature(DS18B20) 368 + 369 +(PC13) 349 349 )))|(% style="width:173px" %)((( 350 -Digital in(PB15) & Digital Interrupt(PA8) 371 +Digital in(PB15) & 372 + 373 +Digital Interrupt(PA8) 351 351 )))|(% style="width:84px" %)((( 352 -ADC(PA4) 375 +ADC 376 + 377 +(PA4) 353 353 )))|(% style="width:323px" %)((( 354 354 Distance measure by:1)TF-Mini plus LiDAR 355 355 Or ... ... @@ -375,22 +375,32 @@ 375 375 376 376 This mode has total 12 bytes. Include 3 x ADC + 1x I2C 377 377 378 -(% border="1" cellspacing="4" style="background-color:#f2f2f2;width:520px" %)379 -|=( % style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((403 +(% style="width:1031px" %) 404 +|=((( 380 380 **Size(bytes)** 381 -)))|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width:140px;background-color:#D9E2F3;color:#0070C0" %)2|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)2|=(% style="width:20px;background-color:#D9E2F3;color:#0070C0" %)1406 +)))|=(% style="width: 68px;" %)**2**|=(% style="width: 75px;" %)**2**|=**2**|=**1**|=(% style="width: 304px;" %)2|=(% style="width: 163px;" %)2|=(% style="width: 53px;" %)1 382 382 |**Value**|(% style="width:68px" %)((( 383 -ADC1(PA4) 408 +ADC1 409 + 410 +(PA4) 384 384 )))|(% style="width:75px" %)((( 385 -ADC2(PA5) 412 +ADC2 413 + 414 +(PA5) 386 386 )))|((( 387 -ADC3(PA8) 416 +ADC3 417 + 418 +(PA8) 388 388 )))|((( 389 389 Digital Interrupt(PB15) 390 390 )))|(% style="width:304px" %)((( 391 -Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor) 422 +Temperature 423 + 424 +(SHT20 or SHT31 or BH1750 Illumination Sensor) 392 392 )))|(% style="width:163px" %)((( 393 -Humidity(SHT20 or SHT31) 426 +Humidity 427 + 428 +(SHT20 or SHT31) 394 394 )))|(% style="width:53px" %)Bat 395 395 396 396 [[image:image-20230513110214-6.png]] ... ... @@ -401,16 +401,18 @@ 401 401 402 402 This mode has total 11 bytes. As shown below: 403 403 404 -(% border="1" cellspacing="4" style="background-color:#f2f2f2;width:520px" %)405 -| (% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:00px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:50px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:0px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width:00px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width:00px;background-color:#D9E2F3;color:#0070C0" %)**2**439 +(% style="width:1017px" %) 440 +|**Size(bytes)**|**2**|(% style="width:186px" %)**2**|(% style="width:82px" %)**2**|(% style="width:210px" %)**1**|(% style="width:191px" %)**2**|(% style="width:183px" %)**2** 406 406 |**Value**|BAT|(% style="width:186px" %)((( 407 407 Temperature1(DS18B20) 408 408 (PC13) 409 409 )))|(% style="width:82px" %)((( 410 410 ADC 446 + 411 411 (PA4) 412 412 )))|(% style="width:210px" %)((( 413 413 Digital in(PB15) & 450 + 414 414 Digital Interrupt(PA8) 415 415 )))|(% style="width:191px" %)Temperature2(DS18B20) 416 416 (PB9)|(% style="width:183px" %)Temperature3(DS18B20) ... ... @@ -447,12 +447,17 @@ 447 447 )))|=**2**|=(% style="width: 193px;" %)**2**|=(% style="width: 85px;" %)**2**|=(% style="width: 186px;" %)**1**|=(% style="width: 100px;" %)**4** 448 448 |**Value**|BAT|(% style="width:193px" %)((( 449 449 Temperature(DS18B20) 487 + 450 450 (PC13) 489 + 490 + 451 451 )))|(% style="width:85px" %)((( 452 452 ADC 493 + 453 453 (PA4) 454 454 )))|(% style="width:186px" %)((( 455 455 Digital in(PB15) & 497 + 456 456 Digital Interrupt(PA8) 457 457 )))|(% style="width:100px" %)Weight 458 458 ... ... @@ -477,12 +477,15 @@ 477 477 (PC13) 478 478 )))|(% style="width:108px" %)((( 479 479 ADC 522 + 480 480 (PA4) 481 481 )))|(% style="width:126px" %)((( 482 482 Digital in 526 + 483 483 (PB15) 484 484 )))|(% style="width:145px" %)((( 485 485 Count 530 + 486 486 (PA8) 487 487 ))) 488 488 ... ... @@ -497,9 +497,11 @@ 497 497 )))|=**2**|=(% style="width: 188px;" %)**2**|=(% style="width: 83px;" %)**2**|=(% style="width: 184px;" %)**1**|=(% style="width: 186px;" %)**1**|=(% style="width: 197px;" %)1|=(% style="width: 100px;" %)2 498 498 |**Value**|BAT|(% style="width:188px" %)((( 499 499 Temperature(DS18B20) 545 + 500 500 (PC13) 501 501 )))|(% style="width:83px" %)((( 502 502 ADC 549 + 503 503 (PA5) 504 504 )))|(% style="width:184px" %)((( 505 505 Digital Interrupt1(PA8) ... ... @@ -515,17 +515,21 @@ 515 515 )))|=**2**|=(% style="width: 207px;" %)**2**|=(% style="width: 94px;" %)**2**|=(% style="width: 198px;" %)**1**|=(% style="width: 84px;" %)**2**|=(% style="width: 82px;" %)2 516 516 |**Value**|BAT|(% style="width:207px" %)((( 517 517 Temperature(DS18B20) 565 + 518 518 (PC13) 519 519 )))|(% style="width:94px" %)((( 520 520 ADC1 569 + 521 521 (PA4) 522 522 )))|(% style="width:198px" %)((( 523 523 Digital Interrupt(PB15) 524 524 )))|(% style="width:84px" %)((( 525 525 ADC2 575 + 526 526 (PA5) 527 527 )))|(% style="width:82px" %)((( 528 528 ADC3 579 + 529 529 (PA8) 530 530 ))) 531 531 ... ... @@ -540,21 +540,27 @@ 540 540 )))|=**2**|=**2**|=**2**|=**1**|=(% style="width: 193px;" %)**2**|=(% style="width: 78px;" %)4|=(% style="width: 78px;" %)4 541 541 |**Value**|BAT|((( 542 542 Temperature1(DS18B20) 594 + 543 543 (PC13) 544 544 )))|((( 545 545 Temperature2(DS18B20) 598 + 546 546 (PB9) 547 547 )))|((( 548 548 Digital Interrupt 602 + 549 549 (PB15) 550 550 )))|(% style="width:193px" %)((( 551 551 Temperature3(DS18B20) 606 + 552 552 (PB8) 553 553 )))|(% style="width:78px" %)((( 554 554 Count1 610 + 555 555 (PA8) 556 556 )))|(% style="width:78px" %)((( 557 557 Count2 614 + 558 558 (PA4) 559 559 ))) 560 560 ... ... @@ -598,7 +598,7 @@ 598 598 599 599 ==== 2.3.3.2 Temperature (DS18B20) ==== 600 600 601 -If there is a DS18B20 connected to P C13 pin. The temperature will be uploaded in the payload.658 +If there is a DS18B20 connected to PB3 pin. The temperature will be uploaded in the payload. 602 602 603 603 More DS18B20 can check the [[3 DS18B20 mode>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/#2.3.4MOD3D4283xDS18B2029]] 604 604 ... ... @@ -626,7 +626,7 @@ 626 626 ((( 627 627 When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin. 628 628 629 - (% style="color:red" %)**Note:**The maximum voltage input supports 3.6V.686 +**Note:**The maximum voltage input supports 3.6V. 630 630 ))) 631 631 632 632 ==== 2.3.3.4 Analogue Digital Converter (ADC) ==== ... ... @@ -637,18 +637,17 @@ 637 637 638 638 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220628150112-1.png?width=285&height=241&rev=1.1||alt="image-20220628150112-1.png" height="241" width="285"]] 639 639 640 - (% style="color:red" %)**Note:**If the ADC type sensor needs to be powered by SN50_v3, it is recommended to use +5V to control its switch.Only sensors with low power consumption can be powered with VDD.697 +**Note:**If the ADC type sensor needs to be powered by SN50_v3, it is recommended to use +5V to control its switch.Only sensors with low power consumption can be powered with VDD. 641 641 642 - 643 643 ==== 2.3.3.5 Digital Interrupt ==== 644 644 645 645 Digital Interrupt refers to pin PA8, and there are different trigger methods. When there is a trigger, the SN50v3 will send a packet to the server. 646 646 647 - (% style="color:blue" %)**~ Interrupt connection method:**703 +**~ Interrupt connection method:** 648 648 649 649 [[image:image-20230513105351-5.png||height="147" width="485"]] 650 650 651 - (% style="color:blue" %)**Example to use with door sensor :**707 +**Example to use with door sensor :** 652 652 653 653 The door sensor is shown at right. It is a two wire magnetic contact switch used for detecting the open/close status of doors or windows. 654 654 ... ... @@ -656,7 +656,7 @@ 656 656 657 657 When the two pieces are close to each other, the 2 wire output will be short or open (depending on the type), while if the two pieces are away from each other, the 2 wire output will be the opposite status. So we can use SN50_v3 interrupt interface to detect the status for the door or window. 658 658 659 - (% style="color:blue" %)**~ Below is the installation example:**715 +**~ Below is the installation example:** 660 660 661 661 Fix one piece of the magnetic sensor to the door and connect the two pins to SN50_v3 as follows: 662 662 ... ... @@ -681,7 +681,7 @@ 681 681 682 682 The command is: 683 683 684 - (% style="color:blue" %)**AT+INTMOD1=1 **(%%)~/~/(more info about INMOD please refer** **[[**AT Command Manual**>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/&file=DRAGINO_LSN50_AT_Commands_v1.5.1.pdf]]**. **)740 +**AT+INTMOD1=1 **~/~/(more info about INMOD please refer** **[[**AT Command Manual**>>url:http://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/&file=DRAGINO_LSN50_AT_Commands_v1.5.1.pdf]]**. **) 685 685 686 686 Below shows some screen captures in TTN V3: 687 687 ... ... @@ -758,7 +758,7 @@ 758 758 759 759 The 5V output time can be controlled by AT Command. 760 760 761 - (% style="color:blue" %)**AT+5VT=1000**817 +**AT+5VT=1000** 762 762 763 763 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors. 764 764 ... ... @@ -793,8 +793,6 @@ 793 793 * 7: MOD8 794 794 * 8: MOD9 795 795 796 - 797 - 798 798 == 2.4 Payload Decoder file == 799 799 800 800 ... ... @@ -938,6 +938,7 @@ 938 938 |=(% style="width: 154px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 196px;background-color:#D9E2F3" %)**Function**|=(% style="width: 157px;background-color:#D9E2F3" %)**Response** 939 939 |(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)((( 940 940 500(default) 995 + 941 941 OK 942 942 ))) 943 943 |(% style="width:154px" %)AT+5VT=1000|(% style="width:196px" %)((( ... ... @@ -1018,6 +1018,7 @@ 1018 1018 ))) 1019 1019 |(% style="width:154px" %)AT+MOD=4|(% style="width:196px" %)Set the working mode to 3DS18B20s.|(% style="width:157px" %)((( 1020 1020 OK 1076 + 1021 1021 Attention:Take effect after ATZ 1022 1022 ))) 1023 1023 ... ... @@ -1103,5 +1103,4 @@ 1103 1103 1104 1104 1105 1105 * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule. 1106 - 1107 -* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.cc>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.cc]] 1162 +* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:http://../../../../../../D:%5C%E5%B8%82%E5%9C%BA%E8%B5%84%E6%96%99%5C%E8%AF%B4%E6%98%8E%E4%B9%A6%5CLoRa%5CLT%E7%B3%BB%E5%88%97%5Csupport@dragino.com]]