Changes for page NSPH01-NB-IoT Soil pH Sensor User Manual
Last modified by Bei Jinggeng on 2024/03/30 17:53
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... ... @@ -208,7 +208,6 @@ 208 208 * (% style="color:blue" %)**AT+CFM=1 ** (%%) ~/~/ If the server does not respond, this command is unnecessar 209 209 210 210 211 - 212 212 [[image:image-20220907153643-9.png||height="401" width="734"]] 213 213 214 214 ... ... @@ -230,7 +230,6 @@ 230 230 * (% style="color:blue" %)**AT+SUBTOPIC=NSE01_SUB ** (%%) ~/~/ Set the subscription topic of MQTT 231 231 232 232 233 - 234 234 [[image:image-20220907153739-11.png||height="491" width="764"]] 235 235 236 236 ... ... @@ -251,7 +251,6 @@ 251 251 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600 ** (%%) ~/~/ to set TCP server address and port 252 252 253 253 254 - 255 255 [[image:image-20220907153818-13.png||height="486" width="668"]] 256 256 257 257 ... ... @@ -259,28 +259,31 @@ 259 259 260 260 261 261 262 - 263 263 === 2.2.8 Change Update Interval === 264 264 261 + 265 265 Users can use the below command to change the **uplink interval**. 266 266 267 267 * (% style="color:blue" %)**AT+TDC=7200 ** (%%) ~/~/ Set Update Interval to 7200s (2 hour) 268 268 266 + 269 269 (% style="color:red" %)**NOTE: By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).** 270 270 271 271 270 + 272 272 == 2.3 Uplink Payload == 273 273 273 + 274 274 In this mode, uplink payload includes 87 bytes in total by default. 275 275 276 276 Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded. 277 277 278 -|**Size(bytes)**|**8**|**2**|**2**|1|1|1|2|2|4|2|2|4 279 -|**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Soil PH|Soil Temperature|Time stamp|Soil Temperature|Soil PH|Time stamp ..... 278 +(% border="2" style="background-color:#ffffcc; color:green; width:1160px" %) 279 +|(% style="width:96px" %)**Size(bytes)**|(% style="width:83px" %)**8**|(% style="width:44px" %)**2**|(% style="width:42px" %)**2**|(% style="width:124px" %)1|(% style="width:57px" %)1|(% style="width:80px" %)1|(% style="width:69px" %)2|(% style="width:134px" %)2|(% style="width:98px" %)4|(% style="width:134px" %)2|(% style="width:68px" %)2|(% style="width:125px" %)4 280 +|(% style="width:96px" %)**Value**|(% style="width:83px" %)Device ID|(% style="width:44px" %)Ver|(% style="width:42px" %)BAT|(% style="width:124px" %)Signal Strength|(% style="width:57px" %)MOD|(% style="width:80px" %)Interrupt|(% style="width:69px" %)Soil PH|(% style="width:134px" %)Soil Temperature|(% style="width:98px" %)Time stamp|(% style="width:134px" %)Soil Temperature|(% style="width:68px" %)Soil PH|(% style="width:125px" %)Time stamp ..... 280 280 281 281 If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data. 282 282 283 -(% style="text-align:center" %) 284 284 [[image:image-20220907153902-15.png||height="581" width="804"]] 285 285 286 286 ... ... @@ -295,19 +295,25 @@ 295 295 * (% style="color:blue" %)Mod: 0x01 = 1 296 296 * (% style="color:green" %)Interrupt: 0x00= 0 297 297 * Soil PH: 0x0225= 549 = 5.49 298 -* Soil Temperature:0x010B =267=26.7 °C 298 +* Soil Temperature: 0x010B =267=26.7 °C 299 299 * Time stamp : 0x6315537b =1662342011 ([[Unix Epoch Time>>url:http://www.epochconverter.com/]]) 300 300 * Soil Temperature,Soil PH,Time stamp : 010b0226631550fb 301 301 * (% style="color:red" %)8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,....... 302 302 303 + 304 + 305 + 303 303 == 2.4 Payload Explanation and Sensor Interface == 304 304 308 + 305 305 === 2.4.1 Device ID === 306 306 311 + 307 307 By default, the Device ID equal to the last 15 bits of IMEI. 308 308 309 309 User can use (% style="color:blue" %)**AT+DEUI** (%%)to set Device ID 310 310 316 + 311 311 **Example:** 312 312 313 313 AT+DEUI=868411056754138 ... ... @@ -314,14 +314,20 @@ 314 314 315 315 The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID. 316 316 323 + 324 + 317 317 === 2.4.2 Version Info === 318 318 327 + 319 319 Specify the software version: 0x64=100, means firmware version 1.00. 320 320 321 321 For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0. 322 322 332 + 333 + 323 323 === 2.4.3 Battery Info === 324 324 336 + 325 325 Check the battery voltage for NSPH01. 326 326 327 327 Ex1: 0x0B45 = 2885mV ... ... @@ -328,8 +328,11 @@ 328 328 329 329 Ex2: 0x0B49 = 2889mV 330 330 343 + 344 + 331 331 === 2.4.4 Signal Strength === 332 332 347 + 333 333 NB-IoT Network signal Strength. 334 334 335 335 **Ex1: 0x1d = 29** ... ... @@ -344,8 +344,11 @@ 344 344 345 345 **99** Not known or not detectable 346 346 362 + 363 + 347 347 === 2.4.5 Soil PH === 348 348 366 + 349 349 Get the PH content of the soil. The value range of the register is 300-1000(Decimal), divide this value by 100 to get the percentage of PH in the soil. 350 350 351 351 For example, if the data you get from the register is **__0x05 0xDC__**, the PH content in the soil is ... ... @@ -352,8 +352,11 @@ 352 352 353 353 **0229(H) = 549(D) /100 = 5.49.** 354 354 373 + 374 + 355 355 === 2.4.6 Soil Temperature === 356 356 377 + 357 357 Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is **__0x09 0xEC__**, the temperature content in the soil is 358 358 359 359 **Example**: ... ... @@ -362,19 +362,25 @@ 362 362 363 363 If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C 364 364 386 + 387 + 365 365 === 2.4.7 Timestamp === 366 366 390 + 367 367 Time stamp : 0x6315537b =1662342011 368 368 369 369 Convert Unix timestamp to time 2022-9-5 9:40:11. 370 370 395 + 396 + 371 371 === 2.4.8 Digital Interrupt === 372 372 373 -Digital Interrupt refers to pin **GPIO_EXTI**, and there are different trigger methods. When there is a trigger, the NSPH01 will send a packet to the server. 374 374 400 +Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NSPH01 will send a packet to the server. 401 + 375 375 The command is: 376 376 377 -**AT+INTMOD=3 ** ~/~/(more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.** 404 +(% style="color:blue" %)**AT+INTMOD=3 ** (%%) ~/~/(more info about INMOD please refer [[**AT Command Manual**>>url:https://www.dragino.com/downloads/downloads/NB-IoT/NBSN95/DRAGINO_NBSN95-NB_AT%20Commands_v1.1.0.pdf]])**.** 378 378 379 379 The lower four bits of this data field shows if this packet is generated by interrupt or not. Click here for the hardware and software set up. 380 380 ... ... @@ -384,34 +384,33 @@ 384 384 385 385 0x(01): Interrupt Uplink Packet. 386 386 414 + 415 + 387 387 === 2.4.9 +5V Output === 388 388 418 + 389 389 NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling. 390 390 391 391 The 5V output time can be controlled by AT Command. 392 392 393 -**AT+5VT=1000** 423 +(% style="color:blue" %)**AT+5VT=1000** 394 394 395 395 Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.** ** 396 396 397 397 428 + 398 398 == 2.5 Downlink Payload == 399 399 431 + 400 400 By default, NSPH01 prints the downlink payload to console port. 401 401 402 -(% style="text-align:center" %) 403 403 [[image:image-20220907154636-17.png]] 404 404 405 405 437 +(% style="color:blue" %)**Examples:** 406 406 439 +* (% style="color:#037691" %)** Set TDC** 407 407 408 - 409 - 410 - 411 -**Examples:** 412 - 413 -* **Set TDC** 414 - 415 415 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), while type code is 01. 416 416 417 417 Payload: 01 00 00 1E TDC=30S ... ... @@ -418,16 +418,19 @@ 418 418 419 419 Payload: 01 00 00 3C TDC=60S 420 420 421 -* **Reset** 447 +* (% style="color:#037691" %)** Reset** 422 422 423 423 If payload = 0x04FF, it will reset the NSPH01 424 424 425 -* **INTMOD** 451 +* (% style="color:#037691" %)** INTMOD** 426 426 427 427 Downlink Payload: 06000003, Set AT+INTMOD=3 428 428 455 + 456 + 429 429 == 2.6 LED Indicator == 430 430 459 + 431 431 The NSPH01 has an internal LED which is to show the status of different state. 432 432 433 433 * When power on, NSPH01 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe) ... ... @@ -435,16 +435,25 @@ 435 435 * After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds. 436 436 * For each uplink probe, LED will be on for 500ms. 437 437 438 -== 2.7 Installation and Maintain == 439 439 440 -=== 2.7.1 Before measurement === 441 441 469 + 470 +== 2.7 Installation and Maintain == 471 + 472 + 473 +=== 2.7.1 Before measurement === 474 + 475 + 442 442 If the NSPH01 has more than 7 days not use or just clean the pH probe. User should put the probe inside pure water for more than 24 hours for activation. If no put in water, user need to put inside soil for more than 24 hours to ensure the measurement accuracy. 443 443 444 -=== 2.7.2 Measurement === 445 445 446 -**Measurement the soil surface:** 447 447 480 +=== 2.7.2 Measurement === 481 + 482 + 483 +**(% style="color:#037691" %)Measurement the soil surface:** 484 + 485 + 448 448 [[image:image-20220907154700-18.png]] 449 449 450 450 Choose the proper measuring position. Split the surface soil according to the measured deep. ... ... @@ -455,14 +455,18 @@ 455 455 456 456 Put soil over the probe after insert. And start to measure. 457 457 458 -**Measurement inside soil:** 459 459 497 +**(% style="color:#037691" %)Measurement inside soil:** 498 + 460 460 Dig a hole with diameter > 20CM. 461 461 462 462 Insert the probe inside, method like measure the surface. 463 463 464 -=== 2.7.3 Maintain Probe === 465 465 504 + 505 +=== 2.7.3 Maintain Probe === 506 + 507 + 466 466 1. pH probe electrode is fragile and no strong. User must avoid strong force or hitting it. 467 467 1. After long time use (3~~ 6 months). The probe electrode needs to be clean; user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks like new, user can use pure water to wash it. 468 468 1. Probe reference electrode is also no strong, need to avoid strong force or hitting. ... ... @@ -470,12 +470,16 @@ 470 470 1. Avoid the probes to touch oily matter. Which will cause issue in accuracy. 471 471 1. The probe is IP68 can be put in water. 472 472 473 -== 2.8 PH and Temperature alarm function == 474 474 475 -➢ AT Command: 476 476 477 -AT+ PHALARM=min,max 478 478 518 +== 2.8 PH and Temperature alarm function == 519 + 520 + 521 +**(% style="color:#037691" %)➢ AT Command:** 522 + 523 +**(% style="color:blue" %)AT+ PHALARM=min,max** 524 + 479 479 ² When min=3, and max≠0, Alarm higher than max 480 480 481 481 ² When min≠0, and max=0, Alarm lower than min ... ... @@ -482,10 +482,11 @@ 482 482 483 483 ² When min≠0 and max≠0, Alarm higher than max or lower than min 484 484 485 -Example: 486 486 487 - AT+PHALARM =5,8 ~/~/ Alarm when PHlowerthan 5.532 +**(% style="color:blue" %)Example:** 488 488 534 +AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5. 535 + 489 489 AT+ TEMPALARM=min,max 490 490 491 491 ² When min=0, and max≠0, Alarm higher than max ... ... @@ -494,50 +494,64 @@ 494 494 495 495 ² When min≠0 and max≠0, Alarm higher than max or lower than min 496 496 497 -Example: 498 498 499 - AT+TEMPALARM=20,30 ~/~/ Alarm whentemperaturelower than 20.545 +**(% style="color:blue" %)Example:** 500 500 547 +AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20. 501 501 549 + 550 + 502 502 == 2.9 Set the number of data to be uploaded and the recording time == 503 503 504 -➢ AT Command: 505 505 506 - AT+TR=900~/~/The unit isseconds, andthe default is to record dataonce every 900seconds.(Theminimum canbe set to 180 seconds)554 +**(% style="color:#037691" %)➢ AT Command:** 507 507 508 -AT+ NOUD=8~/~/Thedeviceuploads8sets of recordeddatabydefault.Upto32 sets ofrecord data can beuploaded.556 +**(% style="color:blue" %)AT+TR=900** (%%) ~/~/ The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds) 509 509 558 +**(% style="color:blue" %)AT+NOUD=8** (%%) ~/~/ The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded. 510 510 560 + 511 511 == 2.10 Read or Clear cached data == 512 512 513 -➢ AT Command: 514 514 515 - AT+CDP~/~/ Readcached data564 +**(% style="color:#037691" %)➢ AT Command:** 516 516 566 +**(% style="color:blue" %)AT+CDP** (%%) ~/~/ Read cached data 567 + 568 +**(% style="color:blue" %)AT+CDP=0** (%%) ~/~/ Clear cached data 569 + 570 + 517 517 [[image:image-20220907154700-19.png]] 518 518 519 519 520 -AT+CDP=0 ~/~/ Clear cached data 521 521 575 +== 2.11 Calibration == 522 522 523 -== 2.11 Calibration == 524 524 525 525 User can do calibration for the probe. It is limited to use below pH buffer solution to calibrate: 4.00, 6.86, 9.18. When calibration, user need to clean the electrode and put the probe in the pH buffer solution to wait the value stable ( a new clean electrode might need max 24 hours to be stable). 526 526 527 527 After stable, user can use below command to calibrate. 528 528 582 + 529 529 [[image:image-20220907154700-20.png]] 530 530 585 + 586 + 531 531 == 2.12 Firmware Change Log == 532 532 589 + 533 533 Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]] 534 534 535 535 Upgrade Instruction: [[Upgrade Firmware>>path:#H5.1200BHowtoUpgradeFirmware]] 536 536 594 + 595 + 537 537 == 2.13 Battery Analysis == 538 538 598 + 539 539 === 2.13.1 Battery Type === 540 540 601 + 541 541 The NSPH01 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter. 542 542 543 543 The battery is designed to last for several years depends on the actually use environment and update interval. ... ... @@ -550,15 +550,18 @@ 550 550 551 551 [[image:image-20220907154700-21.png]] 552 552 614 + 615 + 553 553 === 2.13.2 Power consumption Analyze === 554 554 618 + 555 555 Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval. 556 556 557 557 Instruction to use as below: 558 558 559 -**Step 1: **Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]] 623 +**(% style="color:blue" %)Step 1: **(%%)Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]] 560 560 561 -**Step 2: ** Open it and choose 625 +**(% style="color:#037691" %)Step 2: **(%%) Open it and choose 562 562 563 563 * Product Model 564 564 * Uplink Interval ... ... @@ -566,34 +566,45 @@ 566 566 567 567 And the Life expectation in difference case will be shown on the right. 568 568 569 - (% style="text-align:center" %)633 + 570 570 [[image:image-20220907154700-22.jpeg]] 571 571 572 572 573 573 638 + 574 574 === 2.13.3 Battery Note === 575 575 641 + 576 576 The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased. 577 577 644 + 645 + 578 578 === 2.13.4 Replace the battery === 579 579 648 + 580 580 The default battery pack of NSPH01 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes). 581 581 651 + 652 + 582 582 = 3. Access NB-IoT Module = 583 583 655 + 584 584 Users can directly access the AT command set of the NB-IoT module. 585 585 586 586 The AT Command set can refer the BC35-G NB-IoT Module AT Command: [[https:~~/~~/www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/other_vendors/BC35-G/]] 587 587 588 - (% style="text-align:center" %)660 + 589 589 [[image:image-20220907154700-23.png]] 590 590 591 591 592 592 665 + 593 593 = 4. Using the AT Commands = 594 594 668 + 595 595 == 4.1 Access AT Commands == 596 596 671 + 597 597 See this link for detail: [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]] 598 598 599 599 AT+<CMD>? : Help on <CMD> ... ... @@ -604,8 +604,9 @@ 604 604 605 605 AT+<CMD>=? : Get the value 606 606 607 -**General Commands** 608 608 683 +**(% style="color:#037691" %)General Commands** 684 + 609 609 AT : Attention 610 610 611 611 AT? : Short Help ... ... @@ -649,16 +649,18 @@ 649 649 AT+ PHCAL : calibrate PH value 650 650 651 651 652 -**COAP Management** 728 +**(% style="color:#037691" %)COAP Management** 653 653 654 654 AT+URI : Resource parameters 655 655 656 -**UDP Management** 657 657 733 +**(% style="color:#037691" %)UDP Management** 734 + 658 658 AT+CFM : Upload confirmation mode (only valid for UDP) 659 659 660 -**MQTT Management** 661 661 738 +**(% style="color:#037691" %)MQTT Management** 739 + 662 662 AT+CLIENT : Get or Set MQTT client 663 663 664 664 AT+UNAME : Get or Set MQTT Username ... ... @@ -669,42 +669,63 @@ 669 669 670 670 AT+SUBTOPIC : Get or Set MQTT subscription topic 671 671 672 -**Information** 673 673 751 +**(% style="color:#037691" %)Information** 752 + 674 674 AT+FDR : Factory Data Reset 675 675 676 676 AT+PWORD : Serial Access Password 677 677 757 + 758 + 678 678 = 5. FAQ = 679 679 761 + 680 680 == 5.1 How to Upgrade Firmware == 681 681 764 + 682 682 User can upgrade the firmware for 1) bug fix, 2) new feature release. 683 683 684 684 Please see this link for how to upgrade: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H2.HardwareUpgradeMethodSupportList]] 685 685 686 -**Notice, **NSPH01 **and ** NSPH01 **share the same mother board. They use the same connection and method to update.**769 +**(% style="color:red" %)Notice, **NSPH01 **and **LSPH01 **share the same mother board. They use the same connection and method to update.** 687 687 771 + 772 + 688 688 == 5.2 Can I calibrate NSPH01 to different soil types? == 689 689 775 + 690 690 NSPH01 is calibrated for saline-alkali soil and loamy soil. If users want to use it for other soil, they can calibrate the value in the IoT platform base on the value measured by saline-alkali soil and loamy soil. The formula can be found at [[this link>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/LSE01/Calibrate_to_other_Soil_20220605.pdf]]. 691 691 778 + 779 + 692 692 = 6. Trouble Shooting = 693 693 782 + 694 694 == 6.1 Connection problem when uploading firmware == 695 695 785 + 696 696 **Please see: **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting]] 697 697 788 + 789 + 698 698 == 6.2 AT Command input doesn't work == 699 699 700 -In the case if user can see the console output but can't type input to the device. Please check if you already include the **ENTER** while sending out the command. Some serial tool doesn't send **ENTER** while press the send key, user need to add ENTER in their string. 701 701 793 +In the case if user can see the console output but can't type input to the device. Please check if you already include the **(% style="color:green" %)ENTER**(%%) while sending out the command. Some serial tool doesn't send **(% style="color:green" %)ENTER** (%%)while press the send key, user need to add ENTER in their string. 794 + 795 + 796 + 702 702 = 7. Order Info = 703 703 799 + 704 704 Part Number**:** NSPH01 705 705 802 + 803 + 706 706 = 8. Packing Info = 707 707 806 + 708 708 **Package Includes**: 709 709 710 710 * NSPH01 NB-IoT pH Sensor x 1 ... ... @@ -715,8 +715,12 @@ 715 715 * Size: 195 x 125 x 55 mm 716 716 * Weight: 420g 717 717 817 + 818 + 819 + 718 718 = 9. Support = 719 719 822 + 720 720 * 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. 721 721 * 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]] 722 722