Last modified by Bei Jinggeng on 2025/01/10 15:51
<
From version < 13.1 >
edited by Edwin Chen
on 2023/05/11 23:11
To version < 15.1 >
edited by Edwin Chen
on 2023/05/11 23:23
>
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... ... @@ -288,7 +288,6 @@
288 288  1. All modes share the same Payload Explanation from HERE.
289 289  1. By default, the device will send an uplink message every 20 minutes.
290 290  
291 -
292 292  ==== 2.3.2.1  MOD~=1 (Default Mode) ====
293 293  
294 294  In this mode, uplink payload includes in total 11 bytes. Uplink packets use FPORT=2.
... ... @@ -395,8 +395,6 @@
395 395  
396 396  [[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"]]
397 397  
398 -(% class="wikigeneratedid" %)
399 -=== ===
400 400  
401 401  ==== 2.3.2.5  MOD~=5(Weight Measurement by HX711) ====
402 402  
... ... @@ -428,8 +428,6 @@
428 428  
429 429  [[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"]]
430 430  
431 -(% class="wikigeneratedid" %)
432 -=== ===
433 433  
434 434  ==== 2.3.2.6  MOD~=6 (Counting Mode) ====
435 435  
... ... @@ -460,7 +460,6 @@
460 460  Digital in(PA12)&Digital Interrupt1(PB14)
461 461  )))|Digital Interrupt2(PB15)|Digital Interrupt3(PA4)|Reserved
462 462  
463 -
464 464  ==== 2.3.2.8  MOD~=8 （3ADC+1DS18B20） ====
465 465  
466 466  |=(((
... ... @@ -479,8 +479,6 @@
479 479  
480 480  [[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-20220823164903-2.png?rev=1.1||alt="image-20220823164903-2.png"]]
481 481  
482 -(% class="wikigeneratedid" %)
483 -=== ===
484 484  
485 485  ==== 2.3.2.9  MOD~=9 (3DS18B20+ two Interrupt count mode) ====
486 486  
... ... @@ -518,8 +518,10 @@
518 518  
519 519  When AA is 2, set the count of PB15 pin to BB Corresponding downlink：09 02 bb bb bb bb
520 520  
521 -=== 2.3.10  ​Decode payload in The Things Network ===
522 522  
514 +
515 +=== 2.3.3  ​Decode payload ===
516 +
523 523  While using TTN V3 network, you can add the payload format to decode the payload.
524 524  
525 525  [[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"]]
... ... @@ -526,39 +526,28 @@
526 526  
527 527  The payload decoder function for TTN V3 are here:
528 528  
529 -LSN50 TTN V3 Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
523 +SN50v3 TTN V3 Payload Decoder:  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder>>url:https://github.com/dragino/dragino-end-node-decoder]]
530 530  
531 531  
532 -Sensor Data is uplink via FPORT=2
526 +==== 2.3.3.1 Battery Info ====
533 533  
534 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:500px" %)
535 -|=(% style="width: 90px;background-color:#D9E2F3" %)(((
536 -**Size(bytes)**
537 -)))|=(% style="width: 80px;background-color:#D9E2F3" %)2|=(% style="width: 90px;background-color:#D9E2F3" %)4|=(% style="width:80px;background-color:#D9E2F3" %)1|=(% style="width: 80px;background-color:#D9E2F3" %)**2**|=(% style="width: 80px;background-color:#D9E2F3" %)2
538 -|(% style="width:99px" %)**Value**|(% style="width:69px" %)(((
539 -[[Battery>>||anchor="HBattery:"]]
540 -)))|(% style="width:130px" %)(((
541 -[[Unix TimeStamp>>||anchor="H2.5.2UnixTimeStamp"]]
542 -)))|(% style="width:91px" %)(((
543 -[[Alarm Flag>>||anchor="HAlarmFlag26MOD:"]]
544 -)))|(% style="width:103px" %)(((
545 -[[Temperature>>||anchor="HTemperature:"]]
546 -)))|(% style="width:80px" %)(((
547 -[[Humidity>>||anchor="HHumidity:"]]
548 -)))
528 +Check the battery voltage for SN50v3.
549 549  
550 -==== (% style="color:#4472c4" %)**Battery**(%%) ====
551 -
552 -Sensor Battery Level.
553 -
554 554  Ex1: 0x0B45 = 2885mV
555 555  
556 556  Ex2: 0x0B49 = 2889mV
557 557  
558 558  
535 +==== 2.3.3.2  Temperature (DS18B20) ====
559 559  
560 -==== (% style="color:#4472c4" %)**Temperature**(%%) ====
537 +If there is a DS18B20 connected to PB3 pin. The temperature will be uploaded in the payload.
561 561  
539 +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]]
540 +
541 +**Connection:**
542 +
543 +[[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/1656378573379-646.png?rev=1.1||alt="1656378573379-646.png"]]
544 +
562 562  **Example**:
563 563  
564 564  If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
... ... @@ -568,186 +568,239 @@
568 568  （FF3F & 8000：Judge whether the highest bit is 1, when the highest bit is 1, it is negative）
569 569  
570 570  
571 -==== (% style="color:#4472c4" %)**Humidity**(%%) ====
554 +==== 2.3.3.3 Digital Input ====
572 572  
556 +The digital input for pin PA12,
573 573  
574 -Read:0x(0197)=412    Value:  412 / 10=41.2, So 41.2%
558 +* When PA12 is high, the bit 1 of payload byte 6 is 1.
559 +* When PA12 is low, the bit 1 of payload byte 6 is 0.
575 575  
561 +==== 2.3.3.4  Analogue Digital Converter (ADC) ====
576 576  
577 -==== (% style="color:#4472c4" %)**Alarm Flag& MOD**(%%) ====
563 +The ADC pins in LSN50 can measure range from 0~~Vbat, it use reference voltage from . If user need to measure a voltage > VBat, please use resistors to divide this voltage to lower than VBat, otherwise, it may destroy the ADC pin.
578 578  
565 +Note: minimum VBat is 2.5v, when batrrey lower than this value. Device won't be able to send LoRa Uplink.
579 579  
580 -**Example:**
567 +The ADC monitors the voltage on the PA0 line, in mV.
581 581  
582 -If payload & 0x01 = 0x01  **~-~->** This is an Alarm Message
569 +Ex: 0x021F = 543mv,
583 583  
584 -If payload & 0x01 = 0x00  **~-~->** This is a normal uplink message, no alarm
571 +**~ Example1:**  Reading an Oil Sensor (Read a resistance value):
585 585  
586 -If payload >> 2 = 0x00  **~-~->**  means MOD=1, This is a sampling uplink message
587 587  
588 -If payload >> 2 = 0x31  **~-~->**  means MOD=31, this message is a reply message for polling, this message contains the alarm settings. see [[this link>>path:#HPolltheAlarmsettings:]] for detail. 
574 +[[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-20220627172409-28.png?rev=1.1||alt="image-20220627172409-28.png"]]
589 589  
576 +In the LSN50, we can use PB4 and PA0 pin to calculate the resistance for the oil sensor.
577 +
590 590  
591 -== 2.4 Payload Decoder file ==
579 +**Steps:**
592 592  
581 +1. Solder a 10K resistor between PA0 and VCC.
582 +1. Screw oil sensor's two pins to PA0 and PB4.
593 593  
594 -In TTN, use can add a custom payload so it shows friendly reading
584 +The equipment circuit is as below:
595 595  
596 -In the page (% style="color:#037691" %)**Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder**(%%) to add the decoder from:
586 +[[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-20220627172500-29.png?rev=1.1||alt="image-20220627172500-29.png"]]
597 597  
598 -[[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/LSN50v2-S31%26S31B >>https://github.com/dragino/dragino-end-node-decoder/tree/main/LSN50v2-S31%26S31B]]
588 +According to above diagram:
599 599  
590 +[[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-20220628091043-4.png?rev=1.1||alt="image-20220628091043-4.png"]]
600 600  
601 -== 2.5 Datalog Feature ==
592 +So
602 602  
594 +[[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-20220628091344-6.png?rev=1.1||alt="image-20220628091344-6.png"]]
603 603  
604 -Datalog Feature is to ensure IoT Server can get all sampling data from Sensor even if the LoRaWAN network is down. For each sampling, S31x-LB will store the reading for future retrieving purposes.
596 +[[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-20220628091621-8.png?rev=1.1||alt="image-20220628091621-8.png"]] is the reading of ADC. So if ADC=0x05DC=0.9 v and VCC (BAT) is 2.9v
605 605  
598 +The [[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-20220628091702-9.png?rev=1.1||alt="image-20220628091702-9.png"]] 4.5K ohm
606 606  
607 -=== 2.5.1 Ways to get datalog via LoRaWAN ===
600 +Since the Bouy is linear resistance from 10 ~~ 70cm.
608 608  
602 +The position of Bouy is [[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-20220628091824-10.png?rev=1.1||alt="image-20220628091824-10.png"]] , from the bottom of Bouy.
609 609  
610 -Set [[PNACKMD=1>>||anchor="H2.5.4DatalogUplinkpayloadA028FPORT3D329"]], S31x-LB will wait for ACK for every uplink, when there is no LoRaWAN network,S31x-LB will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
611 611  
612 -* a) S31x-LB will do an ACK check for data records sending to make sure every data arrive server.
613 -* b) S31x-LB will send data in **CONFIRMED Mode** when PNACKMD=1, but S31x-LB won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if S31x-LB gets a ACK, S31x-LB will consider there is a network connection and resend all NONE-ACK messages.
605 +==== 2.3.3.5 Digital Interrupt ====
614 614  
615 -Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
607 +Digital Interrupt refers to pin PB14, and there are different trigger methods. When there is a trigger, the SN50v3 will send a packet to the server.
616 616  
617 -[[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-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]
609 +**~ Interrupt connection method:**
618 618  
619 -=== 2.5.2 Unix TimeStamp ===
611 +[[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/1656379178634-321.png?rev=1.1||alt="1656379178634-321.png"]]
620 620  
613 +**Example to use with door sensor :**
621 621  
622 -S31x-LB uses Unix TimeStamp format based on
615 +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.
623 623  
624 -[[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-20220523001219-11.png?width=627&height=97&rev=1.1||alt="图片-20220523001219-11.png" height="97" width="627"]]
617 +[[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/1656379210849-860.png?rev=1.1||alt="1656379210849-860.png"]]
625 625  
626 -User can get this time from link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
619 +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 LSN50 interrupt interface to detect the status for the door or window.
627 627  
628 -Below is the converter example
621 +**~ Below is the installation example:**
629 629  
630 -[[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-20220523001219-12.png?width=720&height=298&rev=1.1||alt="图片-20220523001219-12.png" height="298" width="720"]]
623 +Fix one piece of the magnetic sensor to the door and connect the two pins to LSN50 as follows:
631 631  
632 -So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
625 +* (((
626 +One pin to LSN50's PB14 pin
627 +)))
628 +* (((
629 +The other pin to LSN50's VCC pin
630 +)))
633 633  
632 +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 PB14 will be at the VCC voltage.
634 634  
635 -=== 2.5.3 Set Device Time ===
634 +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.
636 636  
636 +When door sensor is shorted, there will extra power consumption in the circuit, the extra current is 3v3/R14 = 3v2/1Mohm = 0.3uA which can be ignored.
637 637  
638 -User need to set (% style="color:blue" %)**SYNCMOD=1**(%%) to enable sync time via MAC command.
638 +[[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/1656379283019-229.png?rev=1.1||alt="1656379283019-229.png"]]
639 639  
640 -Once S31x-LB Joined LoRaWAN network, it will send the MAC command (DeviceTimeReq) and the server will reply with (DeviceTimeAns) to send the current time to S31x-LB. If S31x-LB fails to get the time from the server, S31x-LB will use the internal time and wait for next time request (AT+SYNCTDC to set the time request period, default is 10 days).
640 +The above photos shows the two parts of the magnetic switch fitted to a door.
641 641  
642 -(% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
642 +The software by default uses the falling edge on the signal line as an interrupt. We need to modify it to accept both the rising edge (0v ~-~-> VCC , door close) and the falling edge (VCC ~-~-> 0v , door open) as the interrupt.
643 643  
644 +The command is:
644 644  
645 -=== 2.5.4 Datalog Uplink payload (FPORT~=3) ===
646 +**AT+INTMOD=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]]**. **)
646 646  
648 +Below shows some screen captures in TTN V3:
647 647  
648 -The Datalog uplinks will use below payload format.
650 +[[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"]]
649 649  
650 -**Retrieval data payload:**
652 +In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:
651 651  
652 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
653 -|=(% style="width: 80px;background-color:#D9E2F3" %)(((
654 -**Size(bytes)**
655 -)))|=(% style="width: 60px; background-color: rgb(217, 226, 243);" %)**2**|=(% style="width: 60px; background-color: rgb(217, 226, 243);" %)**2**|=(% style="width: 120px; background-color: rgb(217, 226, 243);" %)**2**|=(% style="width: 103px; background-color: rgb(217, 226, 243);" %)**1**|=(% style="width: 85px; background-color: rgb(217, 226, 243);" %)**4**
656 -|(% style="width:103px" %)**Value**|(% style="width:54px" %)(((
657 -[[Temp_Black>>||anchor="HTemperatureBlack:"]]
658 -)))|(% style="width:51px" %)[[Temp_White>>||anchor="HTemperatureWhite:"]]|(% style="width:89px" %)[[Temp_ Red or Temp _White>>||anchor="HTemperatureREDorTemperatureWhite:"]]|(% style="width:103px" %)Poll message flag & Ext|(% style="width:54px" %)[[Unix Time Stamp>>||anchor="H2.5.2UnixTimeStamp"]]
654 +door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
659 659  
660 -**Poll message flag & Ext:**
656 +**Notice for hardware version LSN50 v1 < v1.3** (produced before 2018-Nov).
661 661  
662 -[[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-20221006192726-1.png?width=754&height=112&rev=1.1||alt="图片-20221006192726-1.png" height="112" width="754"]]
658 +In this hardware version, there is no R14 resistance solder. When use the latest firmware, it should set AT+INTMOD=0 to close the interrupt. If user need to use Interrupt in this hardware version, user need to solder R14 with 10M resistor and C1 (0.1uF) on board.
663 663  
664 -**No ACK Message**:  1: This message means this payload is fromn Uplink Message which doesn't get ACK from the server before ( for **PNACKMD=1** feature)
660 +[[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/1656379563303-771.png?rev=1.1||alt="1656379563303-771.png"]]
665 665  
666 -**Poll Message Flag**: 1: This message is a poll message reply.
667 667  
668 -* Poll Message Flag is set to 1.
663 +==== 2.3.3.6 I2C Interface (SHT20) ====
669 669  
670 -* Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
665 +The PB6(SDA) and PB7(SCK) are I2C interface lines. You can use these to connect to an I2C device and get the sensor data.
671 671  
672 -For example, in US915 band, the max payload for different DR is:
667 +We have made an example to show how to use the I2C interface to connect to the SHT20 Temperature and Humidity Sensor. This is supported in the stock firmware since v1.5 with **AT+MOD=1 (default value).**
673 673  
674 -**a) DR0:** max is 11 bytes so one entry of data
669 +Notice: Different I2C sensors have different I2C commands set and initiate process, if user want to use other I2C sensors, User need to re-write the source code to support those sensors. SHT20 code in LSN50 will be a good reference.
675 675  
676 -**b) DR1:** max is 53 bytes so devices will upload 4 entries of data (total 44 bytes)
671 +Below is the connection to SHT20/ SHT31. The connection is as below:
677 677  
678 -**c) DR2:** total payload includes 11 entries of data
673 +[[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-20220902163605-2.png?rev=1.1||alt="image-20220902163605-2.png"]]
679 679  
680 -**d) DR3: **total payload includes 22 entries of data.
675 +The device will be able to get the I2C sensor data now and upload to IoT Server.
681 681  
682 -If devise doesn't have any data in the polling time. Device will uplink 11 bytes of 0   
677 +[[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/1656379664142-345.png?rev=1.1||alt="1656379664142-345.png"]]
683 683  
679 +Convert the read byte to decimal and divide it by ten.
684 684  
685 685  **Example:**
686 686  
687 -If S31x-LB has below data inside Flash:
683 +Temperature:  Read:0116(H) = 278(D)  Value:  278 /10=27.8℃;
688 688  
689 -[[image:1682646494051-944.png]]
685 +Humidity:    Read:0248(H)=584(D)  Value:  584 / 10=58.4, So 58.4%
690 690  
691 -If user sends below downlink command: 3160065F9760066DA705
687 +If you want to use other I2C device, please refer the SHT20 part source code as reference.
692 692  
693 -Where : Start time: 60065F97 = time 21/1/19 04:27:03
694 694  
695 - Stop time: 60066DA7= time 21/1/19 05:27:03
690 +==== 2.3.3.7  ​Distance Reading ====
696 696  
692 +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]].
697 697  
698 -**S31x-LB will uplink this payload.**
699 699  
700 -[[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-20220523001219-13.png?width=727&height=421&rev=1.1||alt="图片-20220523001219-13.png" height="421" width="727"]]
695 +==== 2.3.3.8 Ultrasonic Sensor ====
701 701  
702 -(((
703 -__**7FFF089801464160065F97**__ **__7FFF__ __088E__ __014B__ __41__ __60066009__** 7FFF0885014E41600660667FFF0875015141600662BE7FFF086B015541600665167FFF08660155416006676E7FFF085F015A41600669C67FFF0857015D4160066C1E
704 -)))
697 +The LSN50 v1.5 firmware supports ultrasonic sensor (with AT+MOD=2) such as SEN0208 from DF-Robot. This Fundamental Principles of this sensor can be found at this link: [[https:~~/~~/wiki.dfrobot.com/Weather_-_proof_Ultrasonic_Sensor_with_Separate_Probe_SKU~~_~~__SEN0208>>url:https://wiki.dfrobot.com/Weather_-_proof_Ultrasonic_Sensor_with_Separate_Probe_SKU___SEN0208]]
705 705  
706 -(((
707 -Where the first 11 bytes is for the first entry:
708 -)))
699 +The LSN50 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.
709 709  
710 -(((
711 -7FFF089801464160065F97
712 -)))
701 +The picture below shows the connection:
713 713  
714 -(((
715 -**Ext sensor data**=0x7FFF/100=327.67
716 -)))
703 +[[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/1656380061365-178.png?rev=1.1||alt="1656380061365-178.png"]]
717 717  
718 -(((
719 -**Temp**=0x088E/100=22.00
720 -)))
705 +Connect to the LSN50 and run **AT+MOD=2** to switch to ultrasonic mode (ULT).
721 721  
722 -(((
723 -**Hum**=0x014B/10=32.6
724 -)))
707 +The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
725 725  
726 -(((
727 -**poll message flag & Ext**=0x41,means reply data,Ext=1
728 -)))
709 +**Example:**
729 729  
730 -(((
731 -**Unix time** is 0x60066009=1611030423s=21/1/19 04:27:03
732 -)))
711 +Distance:  Read: 0C2D(Hex) = 3117(D)  Value:  3117 mm=311.7 cm
733 733  
713 +[[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/1656384895430-327.png?rev=1.1||alt="1656384895430-327.png"]]
734 734  
735 -(% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||alt="数据 URI 图片" data-widget="image" draggable="true" height="15" role="presentation" title="单击并拖动以移动" width="15"]](% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||alt="数据 URI 图片" draggable="true" height="15" role="presentation" title="单击并拖动以移动" width="15"]](% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="单击并拖动以调整大小" %)的(% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||alt="数据 URI 图片" data-widget="image" draggable="true" height="15" role="presentation" title="单击并拖动以移动" width="15"]](% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220, 220, 220, 0.5); display:none" tabindex="-1" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||alt="数据 URI 图片" draggable="true" height="15" role="presentation" title="单击并拖动以移动" width="15"]](% aria-label="数据 URI 图像图像小部件" contenteditable="false" role="region" style="background-image:url(http://wiki1.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" tabindex="-1" title="单击并拖动以调整大小" %)的
715 +[[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/1656384913616-455.png?rev=1.1||alt="1656384913616-455.png"]]
736 736  
737 -== 2.6 Temperature Alarm Feature ==
717 +You can see the serial output in ULT mode as below:
738 738  
719 +[[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/1656384939855-223.png?rev=1.1||alt="1656384939855-223.png"]]
739 739  
740 -S31x-LB work flow with Alarm feature.
721 +**In TTN V3 server:**
741 741  
723 +[[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/1656384961830-307.png?rev=1.1||alt="1656384961830-307.png"]]
742 742  
743 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50v2-D20-D22-D23%20LoRaWAN%20Temperature%20Sensor%20User%20Manual/WebHome/image-20220623090437-1.png?rev=1.1||alt="图片-20220623090437-1.png"]]
725 +[[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/1656384973646-598.png?rev=1.1||alt="1656384973646-598.png"]]
744 744  
727 +==== 2.3.3.9  Battery Output - BAT pin ====
745 745  
746 -== 2.7 Frequency Plans ==
729 +The BAT pin of SN50v3 is connected to the Battery directly. If users want to use BAT pin to power an external sensor. User need to make sure the external sensor is of low power consumption. Because the BAT pin is always open. If the external sensor is of high power consumption. the battery of SN50v3-LB will run out very soon.
747 747  
748 748  
749 -The S31x-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
732 +==== 2.3.3.10  +5V Output ====
750 750  
734 +SN50v3 will enable +5V output before all sampling and disable the +5v after all sampling. 
735 +
736 +The 5V output time can be controlled by AT Command.
737 +
738 +**AT+5VT=1000**
739 +
740 +Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.
741 +
742 +By default the AT+5VT=500. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
743 +
744 +
745 +
746 +==== 2.3.3.11  BH1750 Illumination Sensor ====
747 +
748 +MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
749 +
750 +[[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-20220628110012-11.jpeg?rev=1.1||alt="image-20220628110012-11.jpeg"]]
751 +
752 +[[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-20220628110012-12.png?rev=1.1||alt="image-20220628110012-12.png"]]
753 +
754 +
755 +==== 2.3.3.12  Working MOD ====
756 +
757 +The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
758 +
759 +User can use the 3^^rd^^ ~~ 7^^th^^  bit of this byte to see the working mod:
760 +
761 +Case 7^^th^^ Byte >> 2 & 0x1f:
762 +
763 +* 0: MOD1
764 +* 1: MOD2
765 +* 2: MOD3
766 +* 3: MOD4
767 +* 4: MOD5
768 +* 5: MOD6
769 +
770 +== 2.4 Payload Decoder file ==
771 +
772 +
773 +In TTN, use can add a custom payload so it shows friendly reading
774 +
775 +In the page (% style="color:#037691" %)**Applications ~-~-> Payload Formats ~-~-> Custom ~-~-> decoder**(%%) to add the decoder from:
776 +
777 +[[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/LSN50v2-S31%26S31B >>https://github.com/dragino/dragino-end-node-decoder/tree/main/LSN50v2-S31%26S31B]]
778 +
779 +
780 +
781 +
782 +== 2.5 Frequency Plans ==
783 +
784 +
785 +The SN50v3-LB uses OTAA mode and below frequency plans by default. If user want to use it with different frequency plan, please refer the AT command sets.
786 +
751 751  [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20Frequency%20Band/]]
752 752  
753 753  

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