Last modified by Bei Jinggeng on 2025/01/10 15:51
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From version < 43.45 >
edited by Xiaoling
on 2023/05/16 15:37
To version < 43.47 >
edited by Xiaoling
on 2023/05/16 15:48
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... ... @@ -41,8 +41,6 @@
41 41  * Downlink to change configure
42 42  * 8500mAh Battery for long term use
43 43  
44 -
45 -
46 46  == 1.3 Specification ==
47 47  
48 48  
... ... @@ -80,8 +80,6 @@
80 80  * Sleep Mode: 5uA @ 3.3v
81 81  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
82 82  
83 -
84 -
85 85  == 1.4 Sleep mode and working mode ==
86 86  
87 87  
... ... @@ -109,8 +109,6 @@
109 109  )))
110 110  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
111 111  
112 -
113 -
114 114  == 1.6 BLE connection ==
115 115  
116 116  
... ... @@ -296,8 +296,6 @@
296 296  1. All modes share the same Payload Explanation from HERE.
297 297  1. By default, the device will send an uplink message every 20 minutes.
298 298  
299 -
300 -
301 301  ==== 2.3.2.1  MOD~=1 (Default Mode) ====
302 302  
303 303  
... ... @@ -619,6 +619,7 @@
619 619  
620 620  [[image:image-20230512180718-8.png||height="538" width="647"]]
621 621  
614 +
622 622  (% style="color:blue" %)**Example**:
623 623  
624 624  If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
... ... @@ -630,6 +630,7 @@
630 630  
631 631  ==== 2.3.3.3 Digital Input ====
632 632  
626 +
633 633  The digital input for pin PB15,
634 634  
635 635  * When PB15 is high, the bit 1 of payload byte 6 is 1.
... ... @@ -639,11 +639,14 @@
639 639  (((
640 640  When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
641 641  
642 -(% 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 +
643 643  )))
644 644  
645 645  ==== 2.3.3.4  Analogue Digital Converter (ADC) ====
646 646  
643 +
647 647  The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.
648 648  
649 649  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.
... ... @@ -650,11 +650,12 @@
650 650  
651 651  [[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"]]
652 652  
653 -(% 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.**
654 654  
655 655  
656 656  ==== 2.3.3.5 Digital Interrupt ====
657 657  
655 +
658 658  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.
659 659  
660 660  (% style="color:blue" %)** Interrupt connection method:**
... ... @@ -661,6 +661,7 @@
661 661  
662 662  [[image:image-20230513105351-5.png||height="147" width="485"]]
663 663  
662 +
664 664  (% style="color:blue" %)**Example to use with door sensor :**
665 665  
666 666  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.
... ... @@ -669,8 +669,9 @@
669 669  
670 670  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.
671 671  
672 -(% style="color:blue" %)** Below is the installation example:**
673 673  
672 +(% style="color:blue" %)**Below is the installation example:**
673 +
674 674  Fix one piece of the magnetic sensor to the door and connect the two pins to SN50_v3 as follows:
675 675  
676 676  * (((
... ... @@ -682,7 +682,7 @@
682 682  
683 683  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.
684 684  
685 -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.
686 686  
687 687  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.
688 688  
... ... @@ -700,6 +700,7 @@
700 700  
701 701  [[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"]]
702 702  
703 +
703 703  In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:
704 704  
705 705  door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
... ... @@ -707,6 +707,7 @@
707 707  
708 708  ==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
709 709  
711 +
710 710  The SDA and SCK are I2C interface lines. You can use these to connect to an I2C device and get the sensor data.
711 711  
712 712  We have made an example to show how to use the I2C interface to connect to the SHT20/ SHT31 Temperature and Humidity Sensor.
... ... @@ -806,7 +806,6 @@
806 806  * 7: MOD8
807 807  * 8: MOD9
808 808  
809 -
810 810  == 2.4 Payload Decoder file ==
811 811  
812 812  
... ... @@ -883,7 +883,6 @@
883 883  * Example 1: Downlink Payload: 0100001E  ~/~/  Set Transmit Interval (TDC) = 30 seconds
884 884  * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
885 885  
886 -
887 887  === 3.3.2 Get Device Status ===
888 888  
889 889  Send a LoRaWAN downlink to ask the device to send its status.
... ... @@ -931,7 +931,6 @@
931 931  * Example 3: Downlink Payload: 06000102  **~-~-->**  AT+INTMOD2=2
932 932  * Example 4: Downlink Payload: 06000201  **~-~-->**  AT+INTMOD3=1
933 933  
934 -
935 935  === 3.3.4 Set Power Output Duration ===
936 936  
937 937  Control the output duration 5V . Before each sampling, device will
... ... @@ -963,7 +963,6 @@
963 963  * Example 1: Downlink Payload: 070000  **~-~-->**  AT+5VT=0
964 964  * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
965 965  
966 -
967 967  === 3.3.5 Set Weighing parameters ===
968 968  
969 969  Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
... ... @@ -988,7 +988,6 @@
988 988  * Example 2: Downlink Payload: 08020FA3  **~-~-->**  AT+WEIGAP=400.3
989 989  * Example 3: Downlink Payload: 08020FA0  **~-~-->**  AT+WEIGAP=400.0
990 990  
991 -
992 992  === 3.3.6 Set Digital pulse count value ===
993 993  
994 994  Feature: Set the pulse count value.
... ... @@ -1011,7 +1011,6 @@
1011 1011  * Example 1: Downlink Payload: 090100000000  **~-~-->**  AT+SETCNT=1,0
1012 1012  * Example 2: Downlink Payload: 0902000003E8  **~-~-->**  AT+SETCNT=2,1000
1013 1013  
1014 -
1015 1015  === 3.3.7 Set Workmode ===
1016 1016  
1017 1017  Feature: Switch working mode.
... ... @@ -1035,7 +1035,6 @@
1035 1035  * Example 1: Downlink Payload: 0A01  **~-~-->**  AT+MOD=1
1036 1036  * Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1037 1037  
1038 -
1039 1039  = 4. Battery & Power Consumption =
1040 1040  
1041 1041  

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