Last modified by Bei Jinggeng on 2025/01/10 15:51
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From version < 59.1 >
edited by Saxer Lin
on 2023/08/11 11:35
To version < 74.6 >
edited by Xiaoling
on 2023/09/26 08:50
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19 19  
20 20  (% style="color:blue" %)**SN50V3-LB **(%%)LoRaWAN Sensor Node is a Long Range LoRa Sensor Node. It is designed for outdoor use and powered by (% style="color:blue" %)** 8500mA Li/SOCl2 battery**(%%) for long term use.SN50V3-LB is designed to facilitate developers to quickly deploy industrial level LoRa and IoT solutions. It help users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to program, create and connect your things everywhere.
21 21  
22 -(% style="color:blue" %)**SN50V3-LB wireless part**(%%) is based on SX1262 allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
22 +(% style="color:blue" %)**SN50V3-LB wireless part**(%%) is based on SX1262 allows the user to send data and reach extremely long ranges at low data-rates.It provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, and so on.
23 23  
24 24  (% style="color:blue" %)**SN50V3-LB **(%%)has a powerful 48Mhz ARM microcontroller with 256KB flash and 64KB RAM. It has multiplex I/O pins to connect to different sensors.
25 25  
... ... @@ -27,7 +27,6 @@
27 27  
28 28  SN50V3-LB is the 3^^rd^^ generation of LSN50 series generic sensor node from Dragino. It is an (% style="color:blue" %)**open source project**(%%) and has a mature LoRaWAN stack and application software. User can use the pre-load software for their IoT projects or easily customize the software for different requirements.
29 29  
30 -
31 31  == 1.2 ​Features ==
32 32  
33 33  
... ... @@ -470,7 +470,6 @@
470 470  [[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"]]
471 471  
472 472  
473 -
474 474  ==== 2.3.2.6  MOD~=6 (Counting Mode) ====
475 475  
476 476  
... ... @@ -583,6 +583,78 @@
583 583  When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
584 584  
585 585  
584 +==== 2.3.2.10  MOD~=10 (PWM input capture and output mode，Since firmware v1.2) ====
585 +
586 +
587 +In this mode, the uplink can perform PWM input capture, and the downlink can perform PWM output.
588 +
589 +[[It should be noted when using PWM mode.>>||anchor="H2.3.3.12A0PWMMOD"]]
590 +
591 +
592 +===== 2.3.2.10.a  Uplink, PWM input capture =====
593 +
594 +
595 +[[image:image-20230817172209-2.png||height="439" width="683"]]
596 +
597 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:690px" %)
598 +|(% 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:135px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)**2**|(% style="background-color:#d9e2f3; color:#0070c0; width:89px" %)**2**
599 +|Value|Bat|(% style="width:191px" %)(((
600 +Temperature(DS18B20)(PC13)
601 +)))|(% style="width:78px" %)(((
602 +ADC(PA4)
603 +)))|(% style="width:135px" %)(((
604 +PWM_Setting
605 +
606 +&Digital Interrupt(PA8)
607 +)))|(% style="width:70px" %)(((
608 +Pulse period
609 +)))|(% style="width:89px" %)(((
610 +Duration of high level
611 +)))
612 +
613 +[[image:image-20230817170702-1.png||height="161" width="1044"]]
614 +
615 +
616 +When the device detects the following PWM signal ,decoder will converts the pulse period and high-level duration to frequency and duty cycle.
617 +
618 +**Frequency：**
619 +
620 +(% class="MsoNormal" %)
621 +(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)**AT+PWMSET**(%%)**=0, **(% lang="EN-US" %)Frequency= 1000000/(%%)Pulse period（HZ）;
622 +
623 +(% class="MsoNormal" %)
624 +(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)**AT+PWMSET**(%%)**=1, **(% lang="EN-US" %)Frequency= 1000/(%%)Pulse period（HZ）;
625 +
626 +
627 +(% class="MsoNormal" %)
628 +**Duty cycle:**
629 +
630 +Duty cycle= Duration of high level/ Pulse period*100 ~(%).
631 +
632 +[[image:image-20230818092200-1.png||height="344" width="627"]]
633 +
634 +
635 +===== 2.3.2.10.b  Downlink, PWM output =====
636 +
637 +
638 +[[image:image-20230817173800-3.png||height="412" width="685"]]
639 +
640 +Downlink:  (% style="color:#037691" %)**0B xx xx xx yy zz zz**
641 +
642 + xx xx xx is the output frequency, the unit is HZ.
643 +
644 + yy is the duty cycle of the output, the unit is %.
645 +
646 + zz zz is the time delay of the output, the unit is ms.
647 +
648 +
649 +For example, send a downlink command: 0B 00 61 A8 32 13 88, the frequency is 25KHZ, the duty cycle is 50, and the output time is 5 seconds.
650 +
651 +The oscilloscope displays as follows:
652 +
653 +[[image:image-20230817173858-5.png||height="694" width="921"]]
654 +
655 +
586 586  === 2.3.3  ​Decode payload ===
587 587  
588 588  
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806 806  [[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"]]
807 807  
808 808  
809 -==== 2.3.3.12  Working MOD ====
879 +==== 2.3.3.12  PWM MOD ====
810 810  
811 811  
882 +* (((
883 +The maximum voltage that the SDA pin of SN50v3 can withstand is 3.6V, and it cannot exceed this voltage value, otherwise the chip may be burned.
884 +)))
885 +* (((
886 +If the PWM pin connected to the SDA pin cannot maintain a high level when it is not working, you need to remove the resistor R2 or replace it with a resistor with a larger resistance, otherwise a sleep current of about 360uA will be generated. The position of the resistor is shown in the figure below:
887 +)))
888 +
889 + [[image:image-20230817183249-3.png||height="320" width="417"]]
890 +
891 +* (((
892 +The signal captured by the input should preferably be processed by hardware filtering and then connected in. The software processing method is to capture four values, discard the first captured value, and then take the middle value of the second, third, and fourth captured values.
893 +)))
894 +* (((
895 +Since the device can only detect a pulse period of 50ms when [[AT+PWMSET=0>>||anchor="H3.3.8PWMsetting"]] (counting in microseconds), it is necessary to change the value of PWMSET according to the frequency of input capture.
896 +
897 +
898 +
899 +)))
900 +
901 +==== 2.3.3.13  Working MOD ====
902 +
903 +
812 812  The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
813 813  
814 814  User can use the 3^^rd^^ ~~ 7^^th^^  bit of this byte to see the working mod:
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824 824  * 6: MOD7
825 825  * 7: MOD8
826 826  * 8: MOD9
919 +* 9: MOD10
827 827  
828 828  
829 829  == 2.4 Payload Decoder file ==
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1061 1061  * Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1062 1062  
1063 1063  
1157 +=== 3.3.8 PWM setting ===
1158 +
1159 +
1160 +Feature: Set the time acquisition unit for PWM input capture.
1161 +
1162 +(% style="color:blue" %)**AT Command: AT+PWMSET**
1163 +
1164 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1165 +|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
1166 +|(% style="width:154px" %)AT+PWMSET=?|(% style="width:196px" %)0|(% style="width:157px" %)(((
1167 +0(default)
1168 +
1169 +OK
1170 +)))
1171 +|(% style="width:154px" %)AT+PWMSET=0|(% style="width:196px" %)The unit of PWM capture time is microsecond. The capture frequency range is between 20HZ and 100000HZ.   |(% style="width:157px" %)(((
1172 +OK
1173 +
1174 +)))
1175 +|(% style="width:154px" %)AT+PWMSET=1|(% style="width:196px" %)The unit of PWM capture time is millisecond.  The capture frequency range is between 5HZ and 250HZ. |(% style="width:157px" %)OK
1176 +
1177 +(% style="color:blue" %)**Downlink Command: 0x0C**
1178 +
1179 +Format: Command Code (0x0C) followed by 1 bytes.
1180 +
1181 +* Example 1: Downlink Payload: 0C00  **~-~-->**  AT+PWMSET=0
1182 +* Example 2: Downlink Payload: 0C01  **~-~-->**  AT+PWMSET=1
1183 +
1184 +
1064 1064  = 4. Battery & Power Consumption =
1065 1065  
1066 1066  
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1150 1150  * Package Size / pcs : cm
1151 1151  * Weight / pcs : g
1152 1152  
1274 +
1153 1153  = 9. Support =
1154 1154  
1155 1155  
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