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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... ... @@ -30,6 +30,7 @@ 30 30 31 31 == 1.2 Features == 32 32 33 + 33 33 * LoRaWAN 1.0.3 Class A 34 34 * Ultra-low power consumption 35 35 * Open-Source hardware/software ... ... @@ -295,7 +295,7 @@ 295 295 In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2. 296 296 297 297 (% 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**299 +|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:130px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:90px" %)**2** 299 299 |**Value**|Bat|(% style="width:191px" %)((( 300 300 Temperature(DS18B20)(PC13) 301 301 )))|(% style="width:78px" %)((( ... ... @@ -311,12 +311,14 @@ 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"]] 312 312 313 313 315 + 314 314 ==== 2.3.2.2 MOD~=2 (Distance Mode) ==== 315 315 318 + 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. 317 317 318 318 (% 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**322 +|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:110px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:140px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:40px" %)**2** 320 320 |**Value**|BAT|(% style="width:196px" %)((( 321 321 Temperature(DS18B20)(PC13) 322 322 )))|(% style="width:87px" %)((( ... ... @@ -330,10 +330,12 @@ 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"]] 332 332 336 + 333 333 (% style="color:blue" %)**Connection of LIDAR-Lite V3HP:** 334 334 335 335 [[image:image-20230512173758-5.png||height="563" width="712"]] 336 336 341 + 337 337 (% style="color:blue" %)**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. ... ... @@ -340,10 +340,11 @@ 340 340 341 341 [[image:image-20230512173903-6.png||height="596" width="715"]] 342 342 348 + 343 343 For the connection to TF-Mini or TF-Luna , MOD2 payload is as below: 344 344 345 345 (% 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**352 +|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:120px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**2** 347 347 |**Value**|BAT|(% style="width:183px" %)((( 348 348 Temperature(DS18B20)(PC13) 349 349 )))|(% style="width:173px" %)((( ... ... @@ -358,6 +358,7 @@ 358 358 359 359 [[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/1656376779088-686.png?rev=1.1||alt="1656376779088-686.png"]] 360 360 367 + 361 361 **Connection to [[TF-Mini plus>>url:http://en.benewake.com/product/detail/5c345cd0e5b3a844c472329b.html]] LiDAR(UART version):** 362 362 363 363 Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current. ... ... @@ -364,6 +364,7 @@ 364 364 365 365 [[image:image-20230512180609-7.png||height="555" width="802"]] 366 366 374 + 367 367 **Connection to [[TF-Luna>>url:http://en.benewake.com/product/detail/5e1c1fd04d839408076b6255.html]] LiDAR (UART version):** 368 368 369 369 Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current. ... ... @@ -373,6 +373,7 @@ 373 373 374 374 ==== 2.3.2.3 MOD~=3 (3 ADC + I2C) ==== 375 375 384 + 376 376 This mode has total 12 bytes. Include 3 x ADC + 1x I2C 377 377 378 378 (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %) ... ... @@ -402,7 +402,7 @@ 402 402 This mode has total 11 bytes. As shown below: 403 403 404 404 (% 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: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**414 +|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**Size(bytes)**|(% style="background-color:#d9e2f3; color:#0070c0; width:20px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:50px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:100px" %)**2** 406 406 |**Value**|BAT|(% style="width:186px" %)((( 407 407 Temperature1(DS18B20)(PC13) 408 408 )))|(% style="width:82px" %)((( ... ... @@ -417,8 +417,10 @@ 417 417 [[image:image-20230513134006-1.png||height="559" width="736"]] 418 418 419 419 429 + 420 420 ==== 2.3.2.5 MOD~=5(Weight Measurement by HX711) ==== 421 421 432 + 422 422 [[image:image-20230512164658-2.png||height="532" width="729"]] 423 423 424 424 Each HX711 need to be calibrated before used. User need to do below two steps: ... ... @@ -437,16 +437,15 @@ 437 437 438 438 Check the response of this command and adjust the value to match the real value for thing. 439 439 440 -(% style="width: 767px" %)441 -|=((( 451 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %) 452 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)((( 442 442 **Size(bytes)** 443 -)))|=**2**|=(% style="width: 1 93px;" %)**2**|=(% style="width:85px;" %)**2**|=(% style="width:186px;" %)**1**|=(% style="width:100px;" %)**4**454 +)))|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 150px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 200px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**4** 444 444 |**Value**|BAT|(% style="width:193px" %)((( 445 445 Temperature(DS18B20) 446 446 (PC13) 447 447 )))|(% style="width:85px" %)((( 448 -ADC 449 -(PA4) 459 +ADC(PA4) 450 450 )))|(% style="width:186px" %)((( 451 451 Digital in(PB15) & 452 452 Digital Interrupt(PA8) ... ... @@ -455,8 +455,10 @@ 455 455 [[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-20220820120036-2.png?width=1003&height=469&rev=1.1||alt="image-20220820120036-2.png" height="469" width="1003"]] 456 456 457 457 468 + 458 458 ==== 2.3.2.6 MOD~=6 (Counting Mode) ==== 459 459 471 + 460 460 In this mode, the device will work in counting mode. It counts the interrupt on the interrupt pins and sends the count on TDC time. 461 461 462 462 Connection is as below. The PIR sensor is a count sensor, it will generate interrupt when people come close or go away. User can replace the PIR sensor with other counting sensors. ... ... @@ -463,40 +463,36 @@ 463 463 464 464 [[image:image-20230512181814-9.png||height="543" width="697"]] 465 465 466 -**Note:** 478 +(% style="color:red" %)**Note:** **LoRaWAN wireless transmission will infect the PIR sensor. Which cause the counting value increase +1 for every uplink. User can change PIR sensor or put sensor away of the SN50_v3 to avoid this happen.** 467 467 468 -(% style="width: 961px" %)469 -|=**Size(bytes)**|=**2**|=(% style="width: 2 56px;" %)**2**|=(% style="width:108px;" %)**2**|=(% style="width: 126px;" %)**1**|=(% style="width:145px;" %)**4**480 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %) 481 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Size(bytes)**|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 220px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**4** 470 470 |**Value**|BAT|(% style="width:256px" %)((( 471 -Temperature(DS18B20) 472 - 473 -(PC13) 483 +Temperature(DS18B20)(PC13) 474 474 )))|(% style="width:108px" %)((( 475 -ADC 476 -(PA4) 485 +ADC(PA4) 477 477 )))|(% style="width:126px" %)((( 478 -Digital in 479 -(PB15) 487 +Digital in(PB15) 480 480 )))|(% style="width:145px" %)((( 481 -Count 482 -(PA8) 489 +Count(PA8) 483 483 ))) 484 484 485 485 [[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/1656378441509-171.png?rev=1.1||alt="1656378441509-171.png"]] 486 486 487 487 495 + 488 488 ==== 2.3.2.7 MOD~=7 (Three interrupt contact modes) ==== 489 489 490 -(% style="width:1108px" %) 491 -|=((( 498 + 499 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %) 500 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)((( 492 492 **Size(bytes)** 493 -)))|=**2**|=(% style="width: 188px;" %)**2**|=(% style="width:83px;" %)**2**|=(% style="width:184px;" %)**1**|=(% style="width:186px;" %)**1**|=(% style="width:197px;" %)1|=(% style="width:100px;" %)2502 +)))|=(% style="width: 20px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 90px;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: 90px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 90px;background-color:#D9E2F3;color:#0070C0" %)1|=(% style="width: 40px;background-color:#D9E2F3;color:#0070C0" %)2 494 494 |**Value**|BAT|(% style="width:188px" %)((( 495 495 Temperature(DS18B20) 496 496 (PC13) 497 497 )))|(% style="width:83px" %)((( 498 -ADC 499 -(PA5) 507 +ADC(PA5) 500 500 )))|(% style="width:184px" %)((( 501 501 Digital Interrupt1(PA8) 502 502 )))|(% style="width:186px" %)Digital Interrupt2(PA4)|(% style="width:197px" %)Digital Interrupt3(PB15)|(% style="width:100px" %)Reserved ... ... @@ -503,26 +503,25 @@ 503 503 504 504 [[image:image-20230513111203-7.png||height="324" width="975"]] 505 505 514 + 506 506 ==== 2.3.2.8 MOD~=8 (3ADC+1DS18B20) ==== 507 507 508 -(% style="width:922px" %) 509 -|=((( 517 + 518 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %) 519 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)((( 510 510 **Size(bytes)** 511 -)))|=**2**|=(% style="width: 20 7px;" %)**2**|=(% style="width:94px;" %)**2**|=(% style="width: 198px;" %)**1**|=(% style="width:84px;" %)**2**|=(% style="width:82px;" %)2521 +)))|=(% style="width: 30px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 120px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)2 512 512 |**Value**|BAT|(% style="width:207px" %)((( 513 513 Temperature(DS18B20) 514 514 (PC13) 515 515 )))|(% style="width:94px" %)((( 516 -ADC1 517 -(PA4) 526 +ADC1(PA4) 518 518 )))|(% style="width:198px" %)((( 519 519 Digital Interrupt(PB15) 520 520 )))|(% style="width:84px" %)((( 521 -ADC2 522 -(PA5) 530 +ADC2(PA5) 523 523 )))|(% style="width:82px" %)((( 524 -ADC3 525 -(PA8) 532 +ADC3(PA8) 526 526 ))) 527 527 528 528 [[image:image-20230513111231-8.png||height="335" width="900"]] ... ... @@ -530,10 +530,11 @@ 530 530 531 531 ==== 2.3.2.9 MOD~=9 (3DS18B20+ two Interrupt count mode) ==== 532 532 533 -(% style="width:1010px" %) 534 -|=((( 540 + 541 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %) 542 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)((( 535 535 **Size(bytes)** 536 -)))|=**2**|=**2**|=**2**|=**1**|=(% style="width: 1 93px;" %)**2**|=(% style="width:78px;" %)4|=(% style="width:78px;" %)4544 +)))|=(% 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" %)**2**|=(% style="width: 80px;background-color:#D9E2F3;color:#0070C0" %)**1**|=(% style="width: 100px;background-color:#D9E2F3;color:#0070C0" %)**2**|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)4|=(% style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)4 537 537 |**Value**|BAT|((( 538 538 Temperature1(DS18B20) 539 539 (PC13) ... ... @@ -547,33 +547,32 @@ 547 547 Temperature3(DS18B20) 548 548 (PB8) 549 549 )))|(% style="width:78px" %)((( 550 -Count1 551 -(PA8) 558 +Count1(PA8) 552 552 )))|(% style="width:78px" %)((( 553 -Count2 554 -(PA4) 560 +Count2(PA4) 555 555 ))) 556 556 557 557 [[image:image-20230513111255-9.png||height="341" width="899"]] 558 558 559 -**The newly added AT command is issued correspondingly:** 565 +(% style="color:blue" %)**The newly added AT command is issued correspondingly:** 560 560 561 -** ~AT+INTMOD1****PA8** pin: Corresponding downlink: **06 00 00 xx**567 +(% style="color:#037691" %)** AT+INTMOD1 PA8**(%%) pin: Corresponding downlink: (% style="color:#037691" %)**06 00 00 xx** 562 562 563 -** ~AT+INTMOD2** **PA4** pin: Corresponding downlink:**06 00 01 xx**569 +(% style="color:#037691" %)** AT+INTMOD2 PA4**(%%) pin: Corresponding downlink: (% style="color:#037691" %)**06 00 01 xx** 564 564 565 -** ~AT+INTMOD3****PB15** pin: Corresponding downlink: ** 06 00 02 xx**571 +(% style="color:#037691" %)** AT+INTMOD3 PB15**(%%) pin: Corresponding downlink: (% style="color:#037691" %)** 06 00 02 xx** 566 566 567 -**AT+SETCNT=aa,bb** 568 568 574 +(% style="color:blue" %)**AT+SETCNT=aa,bb** 575 + 569 569 When AA is 1, set the count of PA8 pin to BB Corresponding downlink:09 01 bb bb bb bb 570 570 571 571 When AA is 2, set the count of PA4 pin to BB Corresponding downlink:09 02 bb bb bb bb 572 572 573 573 574 - 575 575 === 2.3.3 Decode payload === 576 576 583 + 577 577 While using TTN V3 network, you can add the payload format to decode the payload. 578 578 579 579 [[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/1656378466788-734.png?rev=1.1||alt="1656378466788-734.png"]] ... ... @@ -585,6 +585,7 @@ 585 585 586 586 ==== 2.3.3.1 Battery Info ==== 587 587 595 + 588 588 Check the battery voltage for SN50v3. 589 589 590 590 Ex1: 0x0B45 = 2885mV ... ... @@ -594,16 +594,18 @@ 594 594 595 595 ==== 2.3.3.2 Temperature (DS18B20) ==== 596 596 605 + 597 597 If there is a DS18B20 connected to PC13 pin. The temperature will be uploaded in the payload. 598 598 599 -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]]608 +More DS18B20 can check the [[3 DS18B20 mode>>||anchor="H2.3.2.4MOD3D4283xDS18B2029"]] 600 600 601 -**Connection:** 610 +(% style="color:blue" %)**Connection:** 602 602 603 603 [[image:image-20230512180718-8.png||height="538" width="647"]] 604 604 605 -**Example**: 606 606 615 +(% style="color:blue" %)**Example**: 616 + 607 607 If payload is: 0105H: (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree 608 608 609 609 If payload is: FF3FH : (FF3F & 8000 == 1) , temp = (FF3FH - 65536)/10 = -19.3 degrees. ... ... @@ -613,6 +613,7 @@ 613 613 614 614 ==== 2.3.3.3 Digital Input ==== 615 615 626 + 616 616 The digital input for pin PB15, 617 617 618 618 * When PB15 is high, the bit 1 of payload byte 6 is 1. ... ... @@ -622,11 +622,14 @@ 622 622 ((( 623 623 When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin. 624 624 625 -(% style="color:red" %)**Note:**The maximum voltage input supports 3.6V. 636 +(% style="color:red" %)**Note: The maximum voltage input supports 3.6V.** 637 + 638 + 626 626 ))) 627 627 628 628 ==== 2.3.3.4 Analogue Digital Converter (ADC) ==== 629 629 643 + 630 630 The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv. 631 631 632 632 When the measured output voltage of the sensor is not within the range of 0V and 1.1V, the output voltage terminal of the sensor shall be divided The example in the following figure is to reduce the output voltage of the sensor by three times If it is necessary to reduce more times, calculate according to the formula in the figure and connect the corresponding resistance in series. ... ... @@ -633,17 +633,19 @@ 633 633 634 634 [[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"]] 635 635 636 -(% 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.650 +(% 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.** 637 637 638 638 639 639 ==== 2.3.3.5 Digital Interrupt ==== 640 640 655 + 641 641 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. 642 642 643 -(% style="color:blue" %)** ~Interrupt connection method:**658 +(% style="color:blue" %)** Interrupt connection method:** 644 644 645 645 [[image:image-20230513105351-5.png||height="147" width="485"]] 646 646 662 + 647 647 (% style="color:blue" %)**Example to use with door sensor :** 648 648 649 649 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. ... ... @@ -652,8 +652,9 @@ 652 652 653 653 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. 654 654 655 -(% style="color:blue" %)**~ Below is the installation example:** 656 656 672 +(% style="color:blue" %)**Below is the installation example:** 673 + 657 657 Fix one piece of the magnetic sensor to the door and connect the two pins to SN50_v3 as follows: 658 658 659 659 * ((( ... ... @@ -665,7 +665,7 @@ 665 665 666 666 Install the other piece to the door. Find a place where the two pieces will be close to each other when the door is closed. For this particular magnetic sensor, when the door is closed, the output will be short, and PA8 will be at the VCC voltage. 667 667 668 -Door sensors have two types: ** NC (Normal close)** and **NO (normal open)**. The connection for both type sensors are the same. But the decoding for payload are reverse, user need to modify this in the IoT Server decoder. 685 +Door sensors have two types: (% style="color:blue" %)** NC (Normal close)**(%%) and (% style="color:blue" %)**NO (normal open)**(%%). The connection for both type sensors are the same. But the decoding for payload are reverse, user need to modify this in the IoT Server decoder. 669 669 670 670 When door sensor is shorted, there will extra power consumption in the circuit, the extra current is 3v3/R14 = 3v3/1Mohm = 3uA which can be ignored. 671 671 ... ... @@ -677,12 +677,13 @@ 677 677 678 678 The command is: 679 679 680 -(% style="color:blue" %)**AT+INTMOD1=1 697 +(% 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]]**. **) 681 681 682 682 Below shows some screen captures in TTN V3: 683 683 684 684 [[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/1656379339508-835.png?rev=1.1||alt="1656379339508-835.png"]] 685 685 703 + 686 686 In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below: 687 687 688 688 door= (bytes[6] & 0x80)? "CLOSE":"OPEN"; ... ... @@ -690,6 +690,7 @@ 690 690 691 691 ==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ==== 692 692 711 + 693 693 The SDA and SCK are I2C interface lines. You can use these to connect to an I2C device and get the sensor data. 694 694 695 695 We have made an example to show how to use the I2C interface to connect to the SHT20/ SHT31 Temperature and Humidity Sensor. ... ... @@ -718,7 +718,7 @@ 718 718 719 719 ==== 2.3.3.7 Distance Reading ==== 720 720 721 -Refer [[Ultrasonic Sensor section>> 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/#H2.4.8UltrasonicSensor]].740 +Refer [[Ultrasonic Sensor section>>||anchor="H2.3.3.8UltrasonicSensor"]]. 722 722 723 723 724 724 ==== 2.3.3.8 Ultrasonic Sensor ==== ... ... @@ -727,13 +727,13 @@ 727 727 728 728 The SN50_v3 detects the pulse width of the sensor and converts it to mm output. The accuracy will be within 1 centimeter. The usable range (the distance between the ultrasonic probe and the measured object) is between 24cm and 600cm. 729 729 730 -The working principle of this sensor is similar to the **HC-SR04** ultrasonic sensor. 749 +The working principle of this sensor is similar to the (% style="color:blue" %)**HC-SR04**(%%) ultrasonic sensor. 731 731 732 732 The picture below shows the connection: 733 733 734 734 [[image:image-20230512173903-6.png||height="596" width="715"]] 735 735 736 -Connect to the SN50_v3 and run **AT+MOD=2** to switch to ultrasonic mode (ULT). 755 +Connect to the SN50_v3 and run (% style="color:blue" %)**AT+MOD=2**(%%) to switch to ultrasonic mode (ULT). 737 737 738 738 The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value. 739 739 ... ... @@ -789,8 +789,6 @@ 789 789 * 7: MOD8 790 790 * 8: MOD9 791 791 792 - 793 - 794 794 == 2.4 Payload Decoder file == 795 795 796 796 ... ... @@ -867,8 +867,6 @@ 867 867 * Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds 868 868 * Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 869 869 870 - 871 - 872 872 === 3.3.2 Get Device Status === 873 873 874 874 Send a LoRaWAN downlink to ask the device to send its status. ... ... @@ -916,8 +916,6 @@ 916 916 * Example 3: Downlink Payload: 06000102 **~-~-->** AT+INTMOD2=2 917 917 * Example 4: Downlink Payload: 06000201 **~-~-->** AT+INTMOD3=1 918 918 919 - 920 - 921 921 === 3.3.4 Set Power Output Duration === 922 922 923 923 Control the output duration 5V . Before each sampling, device will ... ... @@ -949,8 +949,6 @@ 949 949 * Example 1: Downlink Payload: 070000 **~-~-->** AT+5VT=0 950 950 * Example 2: Downlink Payload: 0701F4 **~-~-->** AT+5VT=500 951 951 952 - 953 - 954 954 === 3.3.5 Set Weighing parameters === 955 955 956 956 Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711. ... ... @@ -975,8 +975,6 @@ 975 975 * Example 2: Downlink Payload: 08020FA3 **~-~-->** AT+WEIGAP=400.3 976 976 * Example 3: Downlink Payload: 08020FA0 **~-~-->** AT+WEIGAP=400.0 977 977 978 - 979 - 980 980 === 3.3.6 Set Digital pulse count value === 981 981 982 982 Feature: Set the pulse count value. ... ... @@ -999,8 +999,6 @@ 999 999 * Example 1: Downlink Payload: 090100000000 **~-~-->** AT+SETCNT=1,0 1000 1000 * Example 2: Downlink Payload: 0902000003E8 **~-~-->** AT+SETCNT=2,1000 1001 1001 1002 - 1003 - 1004 1004 === 3.3.7 Set Workmode === 1005 1005 1006 1006 Feature: Switch working mode. ... ... @@ -1024,8 +1024,6 @@ 1024 1024 * Example 1: Downlink Payload: 0A01 **~-~-->** AT+MOD=1 1025 1025 * Example 2: Downlink Payload: 0A04 **~-~-->** AT+MOD=4 1026 1026 1027 - 1028 - 1029 1029 = 4. Battery & Power Consumption = 1030 1030 1031 1031