Changes for page N95S31B -- NB-IoT Temperature & Humidity Sensor User Manual
Last modified by Mengting Qiu on 2024/04/02 16:44
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... ... @@ -41,7 +41,6 @@ 41 41 42 42 == 1.2 Features == 43 43 44 - 45 45 * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD 46 46 * Monitor Temperature & Humidity via SHT31 47 47 * AT Commands to change parameters ... ... @@ -55,6 +55,7 @@ 55 55 56 56 57 57 57 + 58 58 == 1.3 Specification == 59 59 60 60 ... ... @@ -83,6 +83,7 @@ 83 83 84 84 85 85 86 + 86 86 == 1.4 Applications == 87 87 88 88 * Smart Buildings & Home Automation ... ... @@ -131,8 +131,6 @@ 131 131 1. Send an uplink packet 132 132 133 133 134 - 135 - 136 136 = 2. Use N95S31B to communicate with IoT Server = 137 137 138 138 == 2.1 How it works == ... ... @@ -176,7 +176,6 @@ 176 176 * The local NB-IoT network used the band that N95S31B supports. 177 177 * Your operator is able to distribute the data received in their NB-IoT network to your IoT server. 178 178 179 - 180 180 Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8. 181 181 182 182 N95S31B supports different communication protocol such as : ... ... @@ -293,15 +293,16 @@ 293 293 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5601 ** (%%) ~/~/ to set UDP server address and port 294 294 * (% style="color:blue" %)**AT+CFM=1 ** (%%) ~/~/ If the server does not respond, this command is unnecessary 295 295 296 -[[image:16573 30501006-241.png]]294 +[[image:1657352391268-297.png]] 297 297 298 298 299 -[[image:16573 30533775-472.png]]297 +[[image:1657352403317-397.png]] 300 300 301 301 302 302 303 -=== 2.2. 6301 +=== 2.2.7 Use MQTT protocol to uplink data === 304 304 303 +N95S31B supports only plain MQTT now it doesn't support TLS and other related encryption. 305 305 306 306 * (% style="color:blue" %)**AT+PRO=3 ** (%%) ~/~/Set to use MQTT protocol to uplink 307 307 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,1883 ** (%%) ~/~/Set MQTT server address and port ... ... @@ -308,35 +308,40 @@ 308 308 * (% style="color:blue" %)**AT+CLIENT=CLIENT ** (%%)~/~/Set up the CLIENT of MQTT 309 309 * (% style="color:blue" %)**AT+UNAME=UNAME **(%%)~/~/Set the username of MQTT 310 310 * (% style="color:blue" %)**AT+PWD=PWD **(%%)~/~/Set the password of MQTT 311 -* (% style="color:blue" %)**AT+PUBTOPIC= NDDS75_PUB**(%%)~/~/Set the sending topic of MQTT312 -* (% style="color:blue" %)**AT+SUBTOPIC=N DDS75_SUB**(%%) ~/~/Set the subscription topic of MQTT310 +* (% style="color:blue" %)**AT+PUBTOPIC=f9527 **(%%)~/~/Set the sending topic of MQTT 311 +* (% style="color:blue" %)**AT+SUBTOPIC=Ns9527 **(%%) ~/~/Set the subscription topic of MQTT 313 313 314 -[[image:165724 9978444-674.png]]313 +[[image:1657352634421-276.png]] 315 315 316 316 317 -[[image:16573 30723006-866.png]]316 +[[image:1657352645687-385.png]] 318 318 318 +((( 319 +To save battery life, N95S31B will establish a subscription before each uplink and close the subscription 3 seconds after uplink successful. Any downlink commands from server will only arrive during the subscription period. 320 +))) 319 319 322 + 320 320 ((( 321 -MQTT protocol has a much high erpower consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.324 +MQTT protocol has a much high-power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval. 322 322 ))) 323 323 324 324 325 325 326 -=== 2.2. 7329 +=== 2.2.8 Use TCP protocol to uplink data === 327 327 331 +This feature is supported since firmware version v110 328 328 329 329 * (% style="color:blue" %)**AT+PRO=4 ** (%%) ~/~/ Set to use TCP protocol to uplink 330 330 * (% style="color:blue" %)**AT+SERVADDR=120.24.4.116,5600 **(%%) ~/~/ to set TCP server address and port 331 331 332 -[[image: image-20220709093918-1.png]]336 +[[image:1657352898400-901.png]] 333 333 334 334 335 -[[image: image-20220709093918-2.png]]339 +[[image:1657352914475-252.png]] 336 336 337 337 338 338 339 -=== 2.2. 8343 +=== 2.2.9 Change Update Interval === 340 340 341 341 User can use below command to change the (% style="color:green" %)**uplink interval**. 342 342 ... ... @@ -343,69 +343,92 @@ 343 343 * (% style="color:blue" %)**AT+TDC=600 ** (%%)~/~/ Set Update Interval to 600s 344 344 345 345 ((( 346 - (%style="color:red" %)**NOTE:**350 + 347 347 ))) 348 348 349 -((( 350 -(% style="color:red" %)1. By default, the device will send an uplink message every 1 hour. 351 -))) 352 352 353 353 354 - 355 355 == 2.3 Uplink Payload == 356 356 357 -In this mode, uplink payload includes in total 14 bytes 358 358 358 +NBSN95 has different working mode for the connections of different type of sensors. This section describes these modes. User can use the AT Command (% style="color:blue" %)**AT+MOD**(%%) to set NBSN95 to different working modes. 359 359 360 + 361 +For example: 362 + 363 + (% style="color:blue" %)**AT+CFGMOD=2 ** (%%)~/~/will set the NBSN95 to work in MOD=2 distance mode which target to measure distance via Ultrasonic Sensor. 364 + 365 + 366 +The uplink payloads are composed in ASCII String. For example: 367 + 368 +0a cd 00 ed 0a cc 00 00 ef 02 d2 1d (total 24 ASCII Chars) . Representative the actually payload: 369 + 370 +0x 0a cd 00 ed 0a cc 00 00 ef 02 d2 1d Total 12 bytes 371 + 372 + 373 +(% style="color:red" %)**NOTE:** 374 + 375 +(% style="color:red" %) 376 +1. All modes share the same Payload Explanation from [[HERE>>path:#Payload_Explain]]. 377 +1. By default, the device will send an uplink message every 1 hour. 378 + 379 + 380 + 381 +=== 2.3.1 Payload Analyze === 382 + 383 +N95S31B uplink payload includes in total 21 bytes 384 + 385 + 360 360 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:440px" %) 361 361 |=(% style="width: 60px;" %)((( 362 362 **Size(bytes)** 363 -)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 100px;" %)**2**|=(% style="width: 60px;" %)**1** 364 -|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:120px" %)[[Distance (unit: mm)>>||anchor="H2.4.5A0Distance"]]|(% style="width:80px" %)[[Interrupt>>||anchor="H2.4.6A0DigitalInterrupt"]] 389 +)))|=(% style="width: 60px;" %)**6**|=(% style="width: 35px;" %)2|=(% style="width: 35px;" %)**2**|=(% style="width: 80px;" %)**1**|=(% style="width: 80px;" %) |=(% style="width: 99px;" %) |=(% style="width: 77px;" %)**2**|=(% style="width: 60px;" %)**1** 390 +|(% style="width:97px" %)**Value**|(% style="width:83px" %)[[Device ID>>||anchor="H2.4.1A0A0DeviceID"]]|(% style="width:41px" %)[[Ver>>||anchor="H2.4.2A0VersionInfo"]]|(% style="width:46px" %)[[BAT>>||anchor="H2.4.3A0BatteryInfo"]]|(% style="width:123px" %)[[Signal Strength>>||anchor="H2.4.4A0SignalStrength"]]|(% style="width:123px" %)MOD 0X01|(% style="width:99px" %)((( 391 +Reserve/ Same as NBSN95 CFGMOD=1 365 365 366 - (((367 - Ifwe usethe MQTT client to subscribe to this MQTT topic,we can see the following information when the NDDS751 uplinkdata.368 - )))393 +No function here. 394 +)))|(% style="width:77px" %)((( 395 +[[Temperature >>||anchor="H2.4.5A0Distance"]] 369 369 397 +By SHT31 398 +)))|(% style="width:80px" %)((( 399 +[[Humidity>>||anchor="H2.4.6A0DigitalInterrupt"]] 370 370 371 -[[image:1657331036973-987.png]] 372 - 373 -((( 374 -The payload is ASCII string, representative same HEX: 401 +By SHT31 375 375 ))) 376 376 377 377 ((( 378 -0x72403155615900640c6c19029200 where: 405 +((( 406 +If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NB sensor uplink data. 379 379 ))) 380 - 381 -* ((( 382 -Device ID: 0x724031556159 = 724031556159 383 383 ))) 384 -* ((( 385 -Version: 0x0064=100=1.0.0 386 -))) 387 387 388 -* ((( 389 -BAT: 0x0c6c = 3180 mV = 3.180V 390 -))) 391 -* ((( 392 -Signal: 0x19 = 25 393 -))) 394 -* ((( 395 -Distance: 0x0292= 658 mm 396 -))) 397 -* ((( 398 -Interrupt: 0x00 = 0 399 399 411 +[[image:1657354294009-643.png]] 400 400 401 401 414 +The payload is ASCII string, representative same HEX: 0x724031607457006e0ccd1b0100dc000ccc00e10186 where: 415 + 416 +* Device ID: 0x724031607457 = 724031607457 417 +* Version: 0x006e=110=1.1.0 418 + 419 +* BAT: 0x0ccd = 3277 mV = 3.277V 420 +* Signal: 0x1b = 27 421 +* Model: 0x01 = 1 422 +* 0x00dc000ccc= reserve, ignore in N95S31B 423 +* Temperature by SHT31: 0x00e1 = 225 = 22.5 °C 424 +* Humidity by SHT31: 0x0186 = 390 = 39.0 %rh 425 + 426 +((( 402 402 403 403 ))) 404 404 405 -== 2.4 Payload Explanation and Sensor Interface == 430 +((( 431 + 432 +))) 406 406 407 407 408 -=== 2. 4.1435 +=== 2.3.2 Device ID === 409 409 410 410 ((( 411 411 By default, the Device ID equal to the last 6 bytes of IMEI. ... ... @@ -429,20 +429,25 @@ 429 429 430 430 431 431 432 -=== 2. 4.2Version Info ===459 +=== 2.3.3 Version Info === 433 433 434 -((( 435 -Specify the software version: 0x64=100, means firmware version 1.00. 436 -))) 437 437 462 +These bytes include the hardware and software version. 463 + 464 +Higher byte: Specify hardware version: always 0x00 for N95S31B 465 + 466 +Lower byte: Specify the software version: 0x6E=110, means firmware version 110 467 + 468 + 469 +For example: 0x00 6E: this device is N95S31B with firmware version 110. 470 + 438 438 ((( 439 - Forexample: 0x00 64 : this device is NDDS75 with firmware version 1.0.0.472 + 440 440 ))) 441 441 442 442 476 +=== 2.3.4 Battery Info === 443 443 444 -=== 2.4.3 Battery Info === 445 - 446 446 ((( 447 447 Ex1: 0x0B45 = 2885mV 448 448 ))) ... ... @@ -453,7 +453,7 @@ 453 453 454 454 455 455 456 -=== 2. 4.4Signal Strength ===488 +=== 2.3.5 Signal Strength === 457 457 458 458 ((( 459 459 NB-IoT Network signal Strength. ... ... @@ -485,83 +485,24 @@ 485 485 486 486 487 487 488 -=== 2. 4.5Distance ===520 +=== 2.3.6 Temperature & Humidity === 489 489 490 - Get the distance.Flatobject range280mm-7500mm.522 +The device will be able to get the SHT31 temperature and humidity data now and upload to IoT Server. 491 491 492 -((( 493 -For example, if the data you get from the register is **__0x0B 0x05__**, the distance between the sensor and the measured object is 494 -))) 524 +[[image:image-20220709161741-3.png]] 495 495 496 -((( 497 -((( 498 -(% style="color:blue" %)** 0B05(H) = 2821(D) = 2821mm.** 499 -))) 500 -))) 501 501 502 -((( 503 - 504 -))) 527 +Convert the read byte to decimal and divide it by ten. 505 505 506 -((( 507 - 508 -))) 509 509 510 - === 2.4.6 DigitalInterrupt ===530 +**Example:** 511 511 512 -((( 513 -Digital Interrupt refers to pin (% style="color:blue" %)**GPIO_EXTI**(%%), and there are different trigger methods. When there is a trigger, the NDDS75 will send a packet to the server. 514 -))) 532 +Temperature: Read:00ec (H) = 236(D) Value: 236 /10=23.6℃ 515 515 516 -((( 517 -The command is: 518 -))) 534 +Humidity: Read:0295(H)=661(D) Value: 661 / 10=66.1, So 66.1% 519 519 520 -((( 521 -(% 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]])**.** 522 -))) 523 523 524 524 525 -((( 526 -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. 527 -))) 528 - 529 - 530 -((( 531 -Example: 532 -))) 533 - 534 -((( 535 -0x(00): Normal uplink packet. 536 -))) 537 - 538 -((( 539 -0x(01): Interrupt Uplink Packet. 540 -))) 541 - 542 - 543 - 544 -=== 2.4.7 +5V Output === 545 - 546 -((( 547 -NDDS75 will enable +5V output before all sampling and disable the +5v after all sampling. 548 -))) 549 - 550 - 551 -((( 552 -The 5V output time can be controlled by AT Command. 553 -))) 554 - 555 -((( 556 -(% style="color:blue" %)**AT+5VT=1000** 557 -))) 558 - 559 -((( 560 -Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors. 561 -))) 562 - 563 - 564 - 565 565 == 2.5 Downlink Payload == 566 566 567 567 By default, NDDS75 prints the downlink payload to console port. ... ... @@ -614,41 +614,6 @@ 614 614 615 615 616 616 617 -== 2.6 LED Indicator == 618 - 619 - 620 -The NDDS75 has an internal LED which is to show the status of different state. 621 - 622 - 623 -* When power on, NDDS75 will detect if sensor probe is connected, if probe detected, LED will blink four times. (no blinks in this step is no probe) 624 -* Then the LED will be on for 1 second means device is boot normally. 625 -* After NDDS75 join NB-IoT network. The LED will be ON for 3 seconds. 626 -* For each uplink probe, LED will be on for 500ms. 627 - 628 -((( 629 - 630 -))) 631 - 632 - 633 - 634 -== 2.7 Firmware Change Log == 635 - 636 - 637 -((( 638 -Download URL & Firmware Change log 639 -))) 640 - 641 -((( 642 -[[https:~~/~~/www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/>>url:https://www.dragino.com/downloads/index.php?dir=NB-IoT/NDDS75/Firmware/]] 643 -))) 644 - 645 - 646 -((( 647 -Upgrade Instruction: [[Upgrade_Firmware>>||anchor="H5.1200BHowtoUpgradeFirmware"]] 648 -))) 649 - 650 - 651 - 652 652 == 2.8 Battery Analysis == 653 653 654 654 === 2.8.1 Battery Type ===
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