Last modified by Bei Jinggeng on 2025/01/10 15:51
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From version < 43.53 >
edited by Xiaoling
on 2023/05/16 16:13
To version < 43.45 >
edited by Xiaoling
on 2023/05/16 15:37
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... ... @@ -446,9 +446,6 @@
446 446  1. Adjust calibration factor (default value 400): Put a known weight thing on load cell and run **AT+WEIGAP** to adjust the Calibration Factor.
447 447  1. (((
448 448  Weight has 4 bytes, the unit is g.
449 -
450 -
451 -
452 452  )))
453 453  
454 454  For example:
... ... @@ -486,7 +486,6 @@
486 486  
487 487  [[image:image-20230512181814-9.png||height="543" width="697"]]
488 488  
489 -
490 490  (% 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.**
491 491  
492 492  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:520px" %)
... ... @@ -623,7 +623,6 @@
623 623  
624 624  [[image:image-20230512180718-8.png||height="538" width="647"]]
625 625  
626 -
627 627  (% style="color:blue" %)**Example**:
628 628  
629 629  If payload is: 0105H:  (0105 & 8000 == 0), temp = 0105H /10 = 26.1 degree
... ... @@ -635,7 +635,6 @@
635 635  
636 636  ==== 2.3.3.3 Digital Input ====
637 637  
638 -
639 639  The digital input for pin PB15,
640 640  
641 641  * When PB15 is high, the bit 1 of payload byte 6 is 1.
... ... @@ -645,14 +645,11 @@
645 645  (((
646 646  When the digital interrupt pin is set to AT+INTMODx=0, this pin is used as a digital input pin.
647 647  
648 -(% style="color:red" %)**Note: The maximum voltage input supports 3.6V.**
649 -
650 -
642 +(% style="color:red" %)**Note:**The maximum voltage input supports 3.6V.
651 651  )))
652 652  
653 653  ==== 2.3.3.4  Analogue Digital Converter (ADC) ====
654 654  
655 -
656 656  The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.
657 657  
658 658  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.
... ... @@ -659,12 +659,11 @@
659 659  
660 660  [[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"]]
661 661  
662 -(% 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.**
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.
663 663  
664 664  
665 665  ==== 2.3.3.5 Digital Interrupt ====
666 666  
667 -
668 668  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.
669 669  
670 670  (% style="color:blue" %)** Interrupt connection method:**
... ... @@ -671,7 +671,6 @@
671 671  
672 672  [[image:image-20230513105351-5.png||height="147" width="485"]]
673 673  
674 -
675 675  (% style="color:blue" %)**Example to use with door sensor :**
676 676  
677 677  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.
... ... @@ -680,9 +680,8 @@
680 680  
681 681  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.
682 682  
672 +(% style="color:blue" %)** Below is the installation example:**
683 683  
684 -(% style="color:blue" %)**Below is the installation example:**
685 -
686 686  Fix one piece of the magnetic sensor to the door and connect the two pins to SN50_v3 as follows:
687 687  
688 688  * (((
... ... @@ -694,7 +694,7 @@
694 694  
695 695  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.
696 696  
697 -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.
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.
698 698  
699 699  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.
700 700  
... ... @@ -712,7 +712,6 @@
712 712  
713 713  [[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/1656379339508-835.png?rev=1.1||alt="1656379339508-835.png"]]
714 714  
715 -
716 716  In MOD=1, user can use byte 6 to see the status for door open or close. TTN V3 decoder is as below:
717 717  
718 718  door= (bytes[6] & 0x80)? "CLOSE":"OPEN";
... ... @@ -720,7 +720,6 @@
720 720  
721 721  ==== 2.3.3.6 I2C Interface (SHT20 & SHT31) ====
722 722  
723 -
724 724  The SDA and SCK are I2C interface lines. You can use these to connect to an I2C device and get the sensor data.
725 725  
726 726  We have made an example to show how to use the I2C interface to connect to the SHT20/ SHT31 Temperature and Humidity Sensor.
... ... @@ -749,13 +749,11 @@
749 749  
750 750  ==== 2.3.3.7  ​Distance Reading ====
751 751  
752 -
753 753  Refer [[Ultrasonic Sensor section>>||anchor="H2.3.3.8UltrasonicSensor"]].
754 754  
755 755  
756 756  ==== 2.3.3.8 Ultrasonic Sensor ====
757 757  
758 -
759 759  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]]
760 760  
761 761  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.
... ... @@ -766,7 +766,6 @@
766 766  
767 767  [[image:image-20230512173903-6.png||height="596" width="715"]]
768 768  
769 -
770 770  Connect to the SN50_v3 and run (% style="color:blue" %)**AT+MOD=2**(%%) to switch to ultrasonic mode (ULT).
771 771  
772 772  The ultrasonic sensor uses the 8^^th^^ and 9^^th^^ byte for the measurement value.
... ... @@ -776,15 +776,14 @@
776 776  Distance:  Read: 0C2D(Hex) = 3117(D)  Value:  3117 mm=311.7 cm
777 777  
778 778  
762 +
779 779  ==== 2.3.3.9  Battery Output - BAT pin ====
780 780  
781 -
782 782  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.
783 783  
784 784  
785 785  ==== 2.3.3.10  +5V Output ====
786 786  
787 -
788 788  SN50v3 will enable +5V output before all sampling and disable the +5v after all sampling. 
789 789  
790 790  The 5V output time can be controlled by AT Command.
... ... @@ -796,20 +796,18 @@
796 796  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.
797 797  
798 798  
781 +
799 799  ==== 2.3.3.11  BH1750 Illumination Sensor ====
800 800  
801 -
802 802  MOD=1 support this sensor. The sensor value is in the 8^^th^^ and 9^^th^^ bytes.
803 803  
804 804  [[image:image-20230512172447-4.png||height="416" width="712"]]
805 805  
806 -
807 807  [[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" height="361" width="953"]]
808 808  
809 809  
810 810  ==== 2.3.3.12  Working MOD ====
811 811  
812 -
813 813  The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
814 814  
815 815  User can use the 3^^rd^^ ~~ 7^^th^^  bit of this byte to see the working mod:
... ... @@ -827,7 +827,6 @@
827 827  * 8: MOD9
828 828  
829 829  
830 -
831 831  == 2.4 Payload Decoder file ==
832 832  
833 833  
... ... @@ -838,6 +838,7 @@
838 838  [[https:~~/~~/github.com/dragino/dragino-end-node-decoder/tree/main/SN50_v3-LB>>https://github.com/dragino/dragino-end-node-decoder/tree/main/SN50_v3-LB]]
839 839  
840 840  
820 +
841 841  == 2.5 Frequency Plans ==
842 842  
843 843  
... ... @@ -857,8 +857,6 @@
857 857  * AT Command via UART Connection : See [[UART Connection>>http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H2.3UARTConnectionforSN50v3basemotherboard]].
858 858  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
859 859  
860 -
861 -
862 862  == 3.2 General Commands ==
863 863  
864 864  
... ... @@ -880,7 +880,6 @@
880 880  
881 881  === 3.3.1 Set Transmit Interval Time ===
882 882  
883 -
884 884  Feature: Change LoRaWAN End Node Transmit Interval.
885 885  
886 886  (% style="color:blue" %)**AT Command: AT+TDC**
... ... @@ -907,10 +907,8 @@
907 907  * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
908 908  
909 909  
910 -
911 911  === 3.3.2 Get Device Status ===
912 912  
913 -
914 914  Send a LoRaWAN downlink to ask the device to send its status.
915 915  
916 916  (% style="color:blue" %)**Downlink Payload:  **(%%)0x26 01
... ... @@ -920,7 +920,6 @@
920 920  
921 921  === 3.3.3 Set Interrupt Mode ===
922 922  
923 -
924 924  Feature, Set Interrupt mode for GPIO_EXIT.
925 925  
926 926  (% style="color:blue" %)**AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3**
... ... @@ -958,10 +958,8 @@
958 958  * Example 4: Downlink Payload: 06000201  **~-~-->**  AT+INTMOD3=1
959 959  
960 960  
961 -
962 962  === 3.3.4 Set Power Output Duration ===
963 963  
964 -
965 965  Control the output duration 5V . Before each sampling, device will
966 966  
967 967  ~1. first enable the power output to external sensor,
... ... @@ -992,10 +992,8 @@
992 992  * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
993 993  
994 994  
995 -
996 996  === 3.3.5 Set Weighing parameters ===
997 997  
998 -
999 999  Feature: Working mode 5 is effective, weight initialization and weight factor setting of HX711.
1000 1000  
1001 1001  (% style="color:blue" %)**AT Command: AT+WEIGRE,AT+WEIGAP**
... ... @@ -1019,10 +1019,8 @@
1019 1019  * Example 3: Downlink Payload: 08020FA0  **~-~-->**  AT+WEIGAP=400.0
1020 1020  
1021 1021  
1022 -
1023 1023  === 3.3.6 Set Digital pulse count value ===
1024 1024  
1025 -
1026 1026  Feature: Set the pulse count value.
1027 1027  
1028 1028  Count 1 is PA8 pin of mode 6 and mode 9. Count 2 is PA4 pin of mode 9.
... ... @@ -1044,10 +1044,8 @@
1044 1044  * Example 2: Downlink Payload: 0902000003E8  **~-~-->**  AT+SETCNT=2,1000
1045 1045  
1046 1046  
1047 -
1048 1048  === 3.3.7 Set Workmode ===
1049 1049  
1050 -
1051 1051  Feature: Switch working mode.
1052 1052  
1053 1053  (% style="color:blue" %)**AT Command: AT+MOD**
... ... @@ -1070,7 +1070,6 @@
1070 1070  * Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1071 1071  
1072 1072  
1073 -
1074 1074  = 4. Battery & Power Consumption =
1075 1075  
1076 1076  
... ... @@ -1097,18 +1097,13 @@
1097 1097  * (Recommanded way) OTA firmware update via wireless:   [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20OTA%20Update%20for%20Sensors/]]
1098 1098  * Update through UART TTL interface.**[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
1099 1099  
1100 -
1101 -
1102 1102  = 6. FAQ =
1103 1103  
1104 1104  == 6.1 Where can i find source code of SN50v3-LB? ==
1105 1105  
1106 -
1107 1107  * **[[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].**
1108 1108  * **[[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].**
1109 1109  
1110 -
1111 -
1112 1112  = 7. Order Info =
1113 1113  
1114 1114  
... ... @@ -1132,11 +1132,8 @@
1132 1132  * (% style="color:red" %)**20**(%%): With M20 waterproof cable hole
1133 1133  * (% style="color:red" %)**NH**(%%): No Hole
1134 1134  
1135 -
1136 -
1137 1137  = 8. ​Packing Info =
1138 1138  
1139 -
1140 1140  (% style="color:#037691" %)**Package Includes**:
1141 1141  
1142 1142  * SN50v3-LB LoRaWAN Generic Node
... ... @@ -1148,8 +1148,6 @@
1148 1148  * Package Size / pcs : cm
1149 1149  * Weight / pcs : g
1150 1150  
1151 -
1152 -
1153 1153  = 9. Support =
1154 1154  
1155 1155  

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