Last modified by Bei Jinggeng on 2025/01/10 15:51
<
From version < 43.20 >
edited by Xiaoling
on 2023/05/16 14:19
To version < 43.44 >
edited by Xiaoling
on 2023/05/16 15:31
>
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Summary

Details

Page properties
Content
... ... @@ -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" %)(((
... ... @@ -316,7 +316,7 @@
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**
320 +|(% 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" %)(((
... ... @@ -343,7 +343,7 @@
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" %)**Size(bytes)**|(% style="width:20px" %)**2**|(% style="width:100px" %)**2**|(% style="width:100px" %)**1**|(% style="width:50px" %)**2**|(% style="width:120px" %)**2**|(% style="width:80px" %)**2**
347 +|(% 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" %)(((
... ... @@ -352,7 +352,8 @@
352 352  ADC(PA4)
353 353  )))|(% style="width:323px" %)(((
354 354  Distance measure by:1)TF-Mini plus LiDAR
355 -Or 2) TF-Luna LiDAR
356 +Or 
357 +2) TF-Luna LiDAR
356 356  )))|(% style="width:188px" %)Distance signal  strength
357 357  
358 358  [[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"]]
... ... @@ -374,27 +374,22 @@
374 374  
375 375  This mode has total 12 bytes. Include 3 x ADC + 1x I2C
376 376  
377 -(% style="width:1031px" %)
378 -|=(((
379 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
380 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
379 379  **Size(bytes)**
380 -)))|=(% style="width: 68px;" %)**2**|=(% style="width: 75px;" %)**2**|=**2**|=**1**|=(% style="width: 304px;" %)2|=(% style="width: 163px;" %)2|=(% style="width: 53px;" %)1
382 +)))|=(% 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" %)1
381 381  |**Value**|(% style="width:68px" %)(((
382 -ADC1
383 -(PA4)
384 +ADC1(PA4)
384 384  )))|(% style="width:75px" %)(((
385 -ADC2
386 -(PA5)
386 +ADC2(PA5)
387 387  )))|(((
388 -ADC3
389 -(PA8)
388 +ADC3(PA8)
390 390  )))|(((
391 391  Digital Interrupt(PB15)
392 392  )))|(% style="width:304px" %)(((
393 -Temperature
394 -(SHT20 or SHT31 or BH1750 Illumination Sensor)
392 +Temperature(SHT20 or SHT31 or BH1750 Illumination Sensor)
395 395  )))|(% style="width:163px" %)(((
396 -Humidity
397 -(SHT20 or SHT31)
394 +Humidity(SHT20 or SHT31)
398 398  )))|(% style="width:53px" %)Bat
399 399  
400 400  [[image:image-20230513110214-6.png]]
... ... @@ -405,20 +405,16 @@
405 405  
406 406  This mode has total 11 bytes. As shown below:
407 407  
408 -(% style="width:1017px" %)
409 -|**Size(bytes)**|**2**|(% style="width:186px" %)**2**|(% style="width:82px" %)**2**|(% style="width:210px" %)**1**|(% style="width:191px" %)**2**|(% style="width:183px" %)**2**
405 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
406 +|(% 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**
410 410  |**Value**|BAT|(% style="width:186px" %)(((
411 -Temperature1(DS18B20)
412 -(PC13)
408 +Temperature1(DS18B20)(PC13)
413 413  )))|(% style="width:82px" %)(((
414 -ADC
415 -(PA4)
410 +ADC(PA4)
416 416  )))|(% style="width:210px" %)(((
417 -Digital in(PB15) &
418 -Digital Interrupt(PA8) 
412 +Digital in(PB15) & Digital Interrupt(PA8) 
419 419  )))|(% style="width:191px" %)Temperature2(DS18B20)
420 -(PB9)|(% style="width:183px" %)Temperature3(DS18B20)
421 -(PB8)
414 +(PB9)|(% style="width:183px" %)Temperature3(DS18B20)(PB8)
422 422  
423 423  [[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/1656377606181-607.png?rev=1.1||alt="1656377606181-607.png"]]
424 424  
... ... @@ -445,16 +445,15 @@
445 445  
446 446  Check the response of this command and adjust the value to match the real value for thing.
447 447  
448 -(% style="width:767px" %)
449 -|=(((
441 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
442 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
450 450  **Size(bytes)**
451 -)))|=**2**|=(% style="width: 193px;" %)**2**|=(% style="width: 85px;" %)**2**|=(% style="width: 186px;" %)**1**|=(% style="width: 100px;" %)**4**
444 +)))|=(% 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**
452 452  |**Value**|BAT|(% style="width:193px" %)(((
453 453  Temperature(DS18B20)
454 454  (PC13)
455 455  )))|(% style="width:85px" %)(((
456 -ADC
457 -(PA4)
449 +ADC(PA4)
458 458  )))|(% style="width:186px" %)(((
459 459  Digital in(PB15) &
460 460  Digital Interrupt(PA8)
... ... @@ -471,23 +471,18 @@
471 471  
472 472  [[image:image-20230512181814-9.png||height="543" width="697"]]
473 473  
474 -**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.
466 +(% 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.
475 475  
476 -(% style="width:961px" %)
477 -|=**Size(bytes)**|=**2**|=(% style="width: 256px;" %)**2**|=(% style="width: 108px;" %)**2**|=(% style="width: 126px;" %)**1**|=(% style="width: 145px;" %)**4**
468 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
469 +|=(% 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**
478 478  |**Value**|BAT|(% style="width:256px" %)(((
479 -Temperature(DS18B20)
480 -
481 -(PC13)
471 +Temperature(DS18B20)(PC13)
482 482  )))|(% style="width:108px" %)(((
483 -ADC
484 -(PA4)
473 +ADC(PA4)
485 485  )))|(% style="width:126px" %)(((
486 -Digital in
487 -(PB15)
475 +Digital in(PB15)
488 488  )))|(% style="width:145px" %)(((
489 -Count
490 -(PA8)
477 +Count(PA8)
491 491  )))
492 492  
493 493  [[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"]]
... ... @@ -495,16 +495,15 @@
495 495  
496 496  ==== 2.3.2.7  MOD~=7 (Three interrupt contact modes) ====
497 497  
498 -(% style="width:1108px" %)
499 -|=(((
485 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
486 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
500 500  **Size(bytes)**
501 -)))|=**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
488 +)))|=(% 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
502 502  |**Value**|BAT|(% style="width:188px" %)(((
503 503  Temperature(DS18B20)
504 504  (PC13)
505 505  )))|(% style="width:83px" %)(((
506 -ADC
507 -(PA5)
493 +ADC(PA5)
508 508  )))|(% style="width:184px" %)(((
509 509  Digital Interrupt1(PA8)
510 510  )))|(% style="width:186px" %)Digital Interrupt2(PA4)|(% style="width:197px" %)Digital Interrupt3(PB15)|(% style="width:100px" %)Reserved
... ... @@ -513,24 +513,21 @@
513 513  
514 514  ==== 2.3.2.8  MOD~=8 （3ADC+1DS18B20） ====
515 515  
516 -(% style="width:922px" %)
517 -|=(((
502 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
503 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
518 518  **Size(bytes)**
519 -)))|=**2**|=(% style="width: 207px;" %)**2**|=(% style="width: 94px;" %)**2**|=(% style="width: 198px;" %)**1**|=(% style="width: 84px;" %)**2**|=(% style="width: 82px;" %)2
505 +)))|=(% 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
520 520  |**Value**|BAT|(% style="width:207px" %)(((
521 521  Temperature(DS18B20)
522 522  (PC13)
523 523  )))|(% style="width:94px" %)(((
524 -ADC1
525 -(PA4)
510 +ADC1(PA4)
526 526  )))|(% style="width:198px" %)(((
527 527  Digital Interrupt(PB15)
528 528  )))|(% style="width:84px" %)(((
529 -ADC2
530 -(PA5)
514 +ADC2(PA5)
531 531  )))|(% style="width:82px" %)(((
532 -ADC3
533 -(PA8)
516 +ADC3(PA8)
534 534  )))
535 535  
536 536  [[image:image-20230513111231-8.png||height="335" width="900"]]
... ... @@ -538,10 +538,10 @@
538 538  
539 539  ==== 2.3.2.9  MOD~=9 (3DS18B20+ two Interrupt count mode) ====
540 540  
541 -(% style="width:1010px" %)
542 -|=(((
524 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
525 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)(((
543 543  **Size(bytes)**
544 -)))|=**2**|=**2**|=**2**|=**1**|=(% style="width: 193px;" %)**2**|=(% style="width: 78px;" %)4|=(% style="width: 78px;" %)4
527 +)))|=(% 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
545 545  |**Value**|BAT|(((
546 546  Temperature1(DS18B20)
547 547  (PC13)
... ... @@ -555,25 +555,24 @@
555 555  Temperature3(DS18B20)
556 556  (PB8)
557 557  )))|(% style="width:78px" %)(((
558 -Count1
559 -(PA8)
541 +Count1(PA8)
560 560  )))|(% style="width:78px" %)(((
561 -Count2
562 -(PA4)
543 +Count2(PA4)
563 563  )))
564 564  
565 565  [[image:image-20230513111255-9.png||height="341" width="899"]]
566 566  
567 -**The newly added AT command is issued correspondingly:**
548 +(% style="color:blue" %)**The newly added AT command is issued correspondingly:**
568 568  
569 -**~ AT+INTMOD1** ** PA8**  pin：  Corresponding downlink:  **06 00 00 xx**
550 +(% style="color:#037691" %)** AT+INTMOD1 PA8**(%%)  pin：  Corresponding downlink:  (% style="color:#037691" %)**06 00 00 xx**
570 570  
571 -**~ AT+INTMOD2**  **PA4**  pin：  Corresponding downlink:**  06 00 01 xx**
552 +(% style="color:#037691" %)** AT+INTMOD2 PA4**(%%)  pin：  Corresponding downlink: (% style="color:#037691" %)**06 00 01 xx**
572 572  
573 -**~ AT+INTMOD3**  **PB15**  pin：  Corresponding downlink:  ** 06 00 02 xx**
554 +(% style="color:#037691" %)** AT+INTMOD3 PB15**(%%)  pin：  Corresponding downlink:  (% style="color:#037691" %)** 06 00 02 xx**
574 574  
575 -**AT+SETCNT=aa,bb** 
576 576  
557 +(% style="color:blue" %)**AT+SETCNT=aa,bb** 
558 +
577 577  When AA is 1, set the count of PA8 pin to BB Corresponding downlink：09 01 bb bb bb bb
578 578  
579 579  When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
... ... @@ -606,11 +606,11 @@
606 606  
607 607  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]]
608 608  
609 -**Connection:**
591 +(% style="color:blue" %)**Connection:**
610 610  
611 611  [[image:image-20230512180718-8.png||height="538" width="647"]]
612 612  
613 -**Example**:
595 +(% style="color:blue" %)**Example**:
614 614  
615 615  If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
616 616  
... ... @@ -648,7 +648,7 @@
648 648  
649 649  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.
650 650  
651 -(% style="color:blue" %)**~ Interrupt connection method:**
633 +(% style="color:blue" %)** Interrupt connection method:**
652 652  
653 653  [[image:image-20230513105351-5.png||height="147" width="485"]]
654 654  
... ... @@ -660,7 +660,7 @@
660 660  
661 661  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.
662 662  
663 -(% style="color:blue" %)**~ Below is the installation example:**
645 +(% style="color:blue" %)** Below is the installation example:**
664 664  
665 665  Fix one piece of the magnetic sensor to the door and connect the two pins to SN50_v3 as follows:
666 666  
... ... @@ -685,7 +685,7 @@
685 685  
686 686  The command is:
687 687  
688 -(% 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]]**. **)
670 +(% 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]]**. **)
689 689  
690 690  Below shows some screen captures in TTN V3:
691 691  
... ... @@ -726,7 +726,7 @@
726 726  
727 727  ==== 2.3.3.7  ​Distance Reading ====
728 728  
729 -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]].
711 +Refer [[Ultrasonic Sensor section>>||anchor="H2.3.3.8UltrasonicSensor"]].
730 730  
731 731  
732 732  ==== 2.3.3.8 Ultrasonic Sensor ====
... ... @@ -735,13 +735,13 @@
735 735  
736 736  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.
737 737  
738 -The working principle of this sensor is similar to the **HC-SR04** ultrasonic sensor.
720 +The working principle of this sensor is similar to the (% style="color:blue" %)**HC-SR04**(%%) ultrasonic sensor.
739 739  
740 740  The picture below shows the connection:
741 741  
742 742  [[image:image-20230512173903-6.png||height="596" width="715"]]
743 743  
744 -Connect to the SN50_v3 and run **AT+MOD=2** to switch to ultrasonic mode (ULT).
726 +Connect to the SN50_v3 and run (% style="color:blue" %)**AT+MOD=2**(%%) to switch to ultrasonic mode (ULT).
745 745  
746 746  The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
747 747  
... ... @@ -798,7 +798,6 @@
798 798  * 8: MOD9
799 799  
800 800  
801 -
802 802  == 2.4 Payload Decoder file ==
803 803  
804 804  
... ... @@ -876,7 +876,6 @@
876 876  * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
877 877  
878 878  
879 -
880 880  === 3.3.2 Get Device Status ===
881 881  
882 882  Send a LoRaWAN downlink to ask the device to send its status.
... ... @@ -925,7 +925,6 @@
925 925  * Example 4: Downlink Payload: 06000201  **~-~-->**  AT+INTMOD3=1
926 926  
927 927  
928 -
929 929  === 3.3.4 Set Power Output Duration ===
930 930  
931 931  Control the output duration 5V . Before each sampling, device will
... ... @@ -958,7 +958,6 @@
958 958  * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
959 959  
960 960  
961 -
962 962  === 3.3.5 Set Weighing parameters ===
963 963  
964 964  Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
... ... @@ -984,7 +984,6 @@
984 984  * Example 3: Downlink Payload: 08020FA0  **~-~-->**  AT+WEIGAP=400.0
985 985  
986 986  
987 -
988 988  === 3.3.6 Set Digital pulse count value ===
989 989  
990 990  Feature: Set the pulse count value.
... ... @@ -1008,7 +1008,6 @@
1008 1008  * Example 2: Downlink Payload: 0902000003E8  **~-~-->**  AT+SETCNT=2,1000
1009 1009  
1010 1010  
1011 -
1012 1012  === 3.3.7 Set Workmode ===
1013 1013  
1014 1014  Feature: Switch working mode.
... ... @@ -1033,7 +1033,6 @@
1033 1033  * Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1034 1034  
1035 1035  
1036 -
1037 1037  = 4. Battery & Power Consumption =
1038 1038  
1039 1039  

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