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Last modified by Saxer Lin on 2025/03/18 17:25
From version 75.2
edited by Xiaoling
on 2023/11/01 15:42
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To version 52.1
edited by Saxer Lin
on 2023/06/10 17:02
Change comment: There is no comment for this version

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Title
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1 -SN50v3-LB -- LoRaWAN Sensor Node User Manual
1 +SN50v3-LB LoRaWAN Sensor Node User Manual
Parent
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1 -Main.User Manual for LoRaWAN End Nodes.WebHome
Author
... ... @@ -1,1 +1,1 @@
1 -XWiki.Xiaoling
1 +XWiki.Saxer
Content
... ... @@ -1,6 +1,8 @@
1 -
1 +(% style="text-align:center" %)
2 +[[image:image-20230515135611-1.jpeg||height="589" width="589"]]
2 2  
3 3  
5 +
4 4  **Table of Contents：**
5 5  
6 6  {{toc/}}
... ... @@ -17,7 +17,7 @@
17 17  
18 18  (% 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.
19 19  
20 -(% 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, 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, building automation, and so on.
21 21  
22 22  (% 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.
23 23  
... ... @@ -25,6 +25,7 @@
25 25  
26 26  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.
27 27  
30 +
28 28  == 1.2 ​Features ==
29 29  
30 30  
... ... @@ -138,8 +138,9 @@
138 138  
139 139  SN50v3-LB has different hole size options for different size sensor cable. The options provided are M12, M16 and M20. The definition is as below:
140 140  
144 +[[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-20220627104757-1.png?rev=1.1||alt="image-20220627104757-1.png"]]
141 141  
142 -[[image:image-20231101154140-1.png||height="514" width="867"]]
146 +[[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/1656298089706-973.png?rev=1.1||alt="1656298089706-973.png"]]
143 143  
144 144  
145 145  = 2. Configure SN50v3-LB to connect to LoRaWAN network =
... ... @@ -223,33 +223,33 @@
223 223  
224 224  (% style="color:#037691" %)**Frequency Band**:
225 225  
226 -0x01: EU868
230 +*0x01: EU868
227 227  
228 -0x02: US915
232 +*0x02: US915
229 229  
230 -0x03: IN865
234 +*0x03: IN865
231 231  
232 -0x04: AU915
236 +*0x04: AU915
233 233  
234 -0x05: KZ865
238 +*0x05: KZ865
235 235  
236 -0x06: RU864
240 +*0x06: RU864
237 237  
238 -0x07: AS923
242 +*0x07: AS923
239 239  
240 -0x08: AS923-1
244 +*0x08: AS923-1
241 241  
242 -0x09: AS923-2
246 +*0x09: AS923-2
243 243  
244 -0x0a: AS923-3
248 +*0x0a: AS923-3
245 245  
246 -0x0b: CN470
250 +*0x0b: CN470
247 247  
248 -0x0c: EU433
252 +*0x0c: EU433
249 249  
250 -0x0d: KR920
254 +*0x0d: KR920
251 251  
252 -0x0e: MA869
256 +*0x0e: MA869
253 253  
254 254  
255 255  (% style="color:#037691" %)**Sub-Band**:
... ... @@ -325,8 +325,9 @@
325 325  )))|(% style="width:189px" %)(((
326 326  Digital in(PB15) & Digital Interrupt(PA8)
327 327  )))|(% style="width:208px" %)(((
328 -Distance measure by: 1) LIDAR-Lite V3HP
329 -Or 2) Ultrasonic Sensor
332 +Distance measure by:1) LIDAR-Lite V3HP
333 +Or
334 +2) Ultrasonic Sensor
330 330  )))|(% style="width:117px" %)Reserved
331 331  
332 332  [[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/1656324539647-568.png?rev=1.1||alt="1656324539647-568.png"]]
... ... @@ -356,7 +356,8 @@
356 356  ADC(PA4)
357 357  )))|(% style="width:323px" %)(((
358 358  Distance measure by:1)TF-Mini plus LiDAR
359 -Or 2) TF-Luna LiDAR
364 +Or 
365 +2) TF-Luna LiDAR
360 360  )))|(% style="width:188px" %)Distance signal  strength
361 361  
362 362  [[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"]]
... ... @@ -463,6 +463,7 @@
463 463  [[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"]]
464 464  
465 465  
472 +
466 466  ==== 2.3.2.6  MOD~=6 (Counting Mode) ====
467 467  
468 468  
... ... @@ -575,78 +575,6 @@
575 575  When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
576 576  
577 577  
578 -==== 2.3.2.10  MOD~=10 (PWM input capture and output mode，Since firmware v1.2) ====
579 -
580 -
581 -In this mode, the uplink can perform PWM input capture, and the downlink can perform PWM output.
582 -
583 -[[It should be noted when using PWM mode.>>||anchor="H2.3.3.12A0PWMMOD"]]
584 -
585 -
586 -===== 2.3.2.10.a  Uplink, PWM input capture =====
587 -
588 -
589 -[[image:image-20230817172209-2.png||height="439" width="683"]]
590 -
591 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:690px" %)
592 -|(% 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**
593 -|Value|Bat|(% style="width:191px" %)(((
594 -Temperature(DS18B20)(PC13)
595 -)))|(% style="width:78px" %)(((
596 -ADC(PA4)
597 -)))|(% style="width:135px" %)(((
598 -PWM_Setting
599 -
600 -&Digital Interrupt(PA8)
601 -)))|(% style="width:70px" %)(((
602 -Pulse period
603 -)))|(% style="width:89px" %)(((
604 -Duration of high level
605 -)))
606 -
607 -[[image:image-20230817170702-1.png||height="161" width="1044"]]
608 -
609 -
610 -When the device detects the following PWM signal ,decoder will converts the pulse period and high-level duration to frequency and duty cycle.
611 -
612 -**Frequency：**
613 -
614 -(% class="MsoNormal" %)
615 -(% 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）;
616 -
617 -(% class="MsoNormal" %)
618 -(% 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）;
619 -
620 -
621 -(% class="MsoNormal" %)
622 -**Duty cycle:**
623 -
624 -Duty cycle= Duration of high level/ Pulse period*100 ~(%).
625 -
626 -[[image:image-20230818092200-1.png||height="344" width="627"]]
627 -
628 -
629 -===== 2.3.2.10.b  Downlink, PWM output =====
630 -
631 -
632 -[[image:image-20230817173800-3.png||height="412" width="685"]]
633 -
634 -Downlink:  (% style="color:#037691" %)**0B xx xx xx yy zz zz**
635 -
636 - xx xx xx is the output frequency, the unit is HZ.
637 -
638 - yy is the duty cycle of the output, the unit is %.
639 -
640 - zz zz is the time delay of the output, the unit is ms.
641 -
642 -
643 -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.
644 -
645 -The oscilloscope displays as follows:
646 -
647 -[[image:image-20230817173858-5.png||height="694" width="921"]]
648 -
649 -
650 650  === 2.3.3  ​Decode payload ===
651 651  
652 652  
... ... @@ -710,9 +710,9 @@
710 710  ==== 2.3.3.4  Analogue Digital Converter (ADC) ====
711 711  
712 712  
713 -The measuring range of the ADC is only about 0.1V to 1.1V The voltage resolution is about 0.24mv.
648 +The measuring range of the ADC is only about 0V to 1.1V The voltage resolution is about 0.24mv.
714 714  
715 -When the measured output voltage of the sensor is not within the range of 0.1V 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 +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.
716 716  
717 717  [[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"]]
718 718  
... ... @@ -720,10 +720,6 @@
720 720  (% 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.**
721 721  
722 722  
723 -The position of PA5 on the hardware after **LSN50 v3.3** is changed to the position shown in the figure below, and the collected voltage becomes one-sixth of the original.
724 -
725 -[[image:image-20230811113449-1.png||height="370" width="608"]]
726 -
727 727  ==== 2.3.3.5 Digital Interrupt ====
728 728  
729 729  
... ... @@ -870,31 +870,9 @@
870 870  [[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"]]
871 871  
872 872  
873 -==== 2.3.3.12  PWM MOD ====
804 +==== 2.3.3.12  Working MOD ====
874 874  
875 875  
876 -* (((
877 -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.
878 -)))
879 -* (((
880 -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:
881 -)))
882 -
883 - [[image:image-20230817183249-3.png||height="320" width="417"]]
884 -
885 -* (((
886 -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.
887 -)))
888 -* (((
889 -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.
890 -
891 -
892 -
893 -)))
894 -
895 -==== 2.3.3.13  Working MOD ====
896 -
897 -
898 898  The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
899 899  
900 900  User can use the 3^^rd^^ ~~ 7^^th^^  bit of this byte to see the working mod:
... ... @@ -910,7 +910,6 @@
910 910  * 6: MOD7
911 911  * 7: MOD8
912 912  * 8: MOD9
913 -* 9: MOD10
914 914  
915 915  == 2.4 Payload Decoder file ==
916 916  
... ... @@ -968,7 +968,7 @@
968 968  (% style="color:blue" %)**AT Command: AT+TDC**
969 969  
970 970  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
971 -|=(% style="width: 156px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="background-color:#D9E2F3;color:#0070C0" %)**Response**
879 +|=(% style="width: 156px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 137px;background-color:#D9E2F3" %)**Function**|=(% style="background-color:#D9E2F3" %)**Response**
972 972  |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
973 973  30000
974 974  OK
... ... @@ -1006,7 +1006,7 @@
1006 1006  (% style="color:blue" %)**AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3**
1007 1007  
1008 1008  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1009 -|=(% 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**
917 +|=(% style="width: 155px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3" %)**Response**
1010 1010  |(% style="width:154px" %)AT+INTMOD1=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
1011 1011  0
1012 1012  OK
... ... @@ -1050,7 +1050,7 @@
1050 1050  (% style="color:blue" %)**AT Command: AT+5VT**
1051 1051  
1052 1052  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1053 -|=(% 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**
961 +|=(% style="width: 155px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3" %)**Response**
1054 1054  |(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)(((
1055 1055  500(default)
1056 1056  OK
... ... @@ -1076,7 +1076,7 @@
1076 1076  (% style="color:blue" %)**AT Command: AT+WEIGRE,AT+WEIGAP**
1077 1077  
1078 1078  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1079 -|=(% 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**
987 +|=(% style="width: 155px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3" %)**Response**
1080 1080  |(% style="width:154px" %)AT+WEIGRE|(% style="width:196px" %)Weight is initialized to 0.|(% style="width:157px" %)OK
1081 1081  |(% style="width:154px" %)AT+WEIGAP=？|(% style="width:196px" %)400.0|(% style="width:157px" %)OK(default)
1082 1082  |(% style="width:154px" %)AT+WEIGAP=400.3|(% style="width:196px" %)Set the factor to 400.3.|(% style="width:157px" %)OK
... ... @@ -1103,7 +1103,7 @@
1103 1103  (% style="color:blue" %)**AT Command: AT+SETCNT**
1104 1104  
1105 1105  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1106 -|=(% 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**
1014 +|=(% style="width: 155px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3" %)**Response**
1107 1107  |(% style="width:154px" %)AT+SETCNT=1,100|(% style="width:196px" %)Initialize the count value 1 to 100.|(% style="width:157px" %)OK
1108 1108  |(% style="width:154px" %)AT+SETCNT=2,0|(% style="width:196px" %)Initialize the count value 2 to 0.|(% style="width:157px" %)OK
1109 1109  
... ... @@ -1124,7 +1124,7 @@
1124 1124  (% style="color:blue" %)**AT Command: AT+MOD**
1125 1125  
1126 1126  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1127 -|=(% 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**
1035 +|=(% style="width: 155px;background-color:#D9E2F3" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3" %)**Response**
1128 1128  |(% style="width:154px" %)AT+MOD=?|(% style="width:196px" %)Get the current working mode.|(% style="width:157px" %)(((
1129 1129  OK
1130 1130  )))
... ... @@ -1140,33 +1140,6 @@
1140 1140  * Example 1: Downlink Payload: 0A01  **~-~-->**  AT+MOD=1
1141 1141  * Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1142 1142  
1143 -=== 3.3.8 PWM setting ===
1144 -
1145 -
1146 -Feature: Set the time acquisition unit for PWM input capture.
1147 -
1148 -(% style="color:blue" %)**AT Command: AT+PWMSET**
1149 -
1150 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1151 -|=(% 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**
1152 -|(% style="width:154px" %)AT+PWMSET=?|(% style="width:196px" %)0|(% style="width:157px" %)(((
1153 -0(default)
1154 -
1155 -OK
1156 -)))
1157 -|(% 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" %)(((
1158 -OK
1159 -
1160 -)))
1161 -|(% 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
1162 -
1163 -(% style="color:blue" %)**Downlink Command: 0x0C**
1164 -
1165 -Format: Command Code (0x0C) followed by 1 bytes.
1166 -
1167 -* Example 1: Downlink Payload: 0C00  **~-~-->**  AT+PWMSET=0
1168 -* Example 2: Downlink Payload: 0C01  **~-~-->**  AT+PWMSET=1
1169 -
1170 1170  = 4. Battery & Power Consumption =
1171 1171  
1172 1172  
... ... @@ -1185,12 +1185,12 @@
1185 1185  * Update with new features.
1186 1186  * Fix bugs.
1187 1187  
1188 -**Firmware and changelog can be downloaded from :** **[[Firmware download link>>https://www.dropbox.com/sh/4rov7bcp6u28exp/AACt-wAySd4si5AXi8DBmvSca?dl=0]]**
1069 +**Firmware and changelog can be downloaded from :** **[[Firmware download link>>url:https://www.dropbox.com/sh/kwqv57tp6pejias/AAAopYMATh1GM6fZ-VRCLrpDa?dl=0]]**
1189 1189  
1190 1190  **Methods to Update Firmware:**
1191 1191  
1192 -* (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/]]**
1193 -* 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]]**.
1073 +* (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/]]
1074 +* 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]]**.
1194 1194  
1195 1195  = 6. FAQ =
1196 1196  
... ... @@ -1200,22 +1200,6 @@
1200 1200  * **[[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].**
1201 1201  * **[[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].**
1202 1202  
1203 -== 6.2 How to generate PWM Output in SN50v3-LB? ==
1204 -
1205 -
1206 -See this document: **[[Generate PWM Output on SN50v3>>https://www.dropbox.com/scl/fi/r3trcet2knujg40w0mgyn/Generate-PWM-Output-on-SN50v3.pdf?rlkey=rxsgmrhhrv62iiiwjq9sv10bn&dl=0]]**.
1207 -
1208 -
1209 -== 6.3 How to put several sensors to a SN50v3-LB? ==
1210 -
1211 -
1212 -When we want to put several sensors to A SN50v3-LB, the waterproof at the grand connector will become an issue. User can try to exchange the grand connector to below type.
1213 -
1214 -[[Reference Supplier>>https://www.yscableglands.com/cable-glands/nylon-cable-glands/cable-gland-rubber-seal.html]].
1215 -
1216 -[[image:image-20230810121434-1.png||height="242" width="656"]]
1217 -
1218 -
1219 1219  = 7. Order Info =
1220 1220  
1221 1221  
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