Last modified by Bei Jinggeng on 2025/01/10 15:51
<
From version < 74.8 >
edited by Mengting Qiu
on 2023/12/11 20:00
To version < 51.1 >
edited by Saxer Lin
on 2023/06/10 17:01
>
Change comment: Uploaded new attachment "image-20230610170152-2.png", version {1}

Summary

Details

Page properties
Author
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1 -XWiki.ting
1 +XWiki.Saxer
Content
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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, 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.
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  
... ... @@ -27,6 +27,7 @@
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 +
30 30  == 1.2 ​Features ==
31 31  
32 32  
... ... @@ -226,33 +226,33 @@
226 226  
227 227  (% style="color:#037691" %)**Frequency Band**:
228 228  
229 -0x01: EU868
230 +*0x01: EU868
230 230  
231 -0x02: US915
232 +*0x02: US915
232 232  
233 -0x03: IN865
234 +*0x03: IN865
234 234  
235 -0x04: AU915
236 +*0x04: AU915
236 236  
237 -0x05: KZ865
238 +*0x05: KZ865
238 238  
239 -0x06: RU864
240 +*0x06: RU864
240 240  
241 -0x07: AS923
242 +*0x07: AS923
242 242  
243 -0x08: AS923-1
244 +*0x08: AS923-1
244 244  
245 -0x09: AS923-2
246 +*0x09: AS923-2
246 246  
247 -0x0a: AS923-3
248 +*0x0a: AS923-3
248 248  
249 -0x0b: CN470
250 +*0x0b: CN470
250 250  
251 -0x0c: EU433
252 +*0x0c: EU433
252 252  
253 -0x0d: KR920
254 +*0x0d: KR920
254 254  
255 -0x0e: MA869
256 +*0x0e: MA869
256 256  
257 257  
258 258  (% style="color:#037691" %)**Sub-Band**:
... ... @@ -328,8 +328,9 @@
328 328  )))|(% style="width:189px" %)(((
329 329  Digital in(PB15) & Digital Interrupt(PA8)
330 330  )))|(% style="width:208px" %)(((
331 -Distance measure by: 1) LIDAR-Lite V3HP
332 -Or 2) Ultrasonic Sensor
332 +Distance measure by:1) LIDAR-Lite V3HP
333 +Or
334 +2) Ultrasonic Sensor
333 333  )))|(% style="width:117px" %)Reserved
334 334  
335 335  [[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"]]
... ... @@ -359,7 +359,8 @@
359 359  ADC(PA4)
360 360  )))|(% style="width:323px" %)(((
361 361  Distance measure by:1)TF-Mini plus LiDAR
362 -Or 2) TF-Luna LiDAR
364 +Or 
365 +2) TF-Luna LiDAR
363 363  )))|(% style="width:188px" %)Distance signal  strength
364 364  
365 365  [[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"]]
... ... @@ -376,7 +376,7 @@
376 376  
377 377  (% style="color:red" %)**Need to remove R3 and R4 resistors to get low power,otherwise there will be 400uA standby current.**
378 378  
379 -[[image:image-20230610170047-1.png||height="452" width="799"]]
382 +[[image:image-20230513105207-4.png||height="469" width="802"]]
380 380  
381 381  
382 382  ==== 2.3.2.3  MOD~=3 (3 ADC + I2C) ====
... ... @@ -466,6 +466,7 @@
466 466  [[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"]]
467 467  
468 468  
472 +
469 469  ==== 2.3.2.6  MOD~=6 (Counting Mode) ====
470 470  
471 471  
... ... @@ -578,79 +578,6 @@
578 578  When AA is 2, set the count of PA4 pin to BB Corresponding downlink：09 02 bb bb bb bb
579 579  
580 580  
581 -==== 2.3.2.10  MOD~=10 (PWM input capture and output mode，Since firmware v1.2) ====
582 -
583 -(% style="color:red" %)**Note: Firmware not release, contact Dragino for testing.**
584 -
585 -In this mode, the uplink can perform PWM input capture, and the downlink can perform PWM output.
586 -
587 -[[It should be noted when using PWM mode.>>||anchor="H2.3.3.12A0PWMMOD"]]
588 -
589 -
590 -===== 2.3.2.10.a  Uplink, PWM input capture =====
591 -
592 -
593 -[[image:image-20230817172209-2.png||height="439" width="683"]]
594 -
595 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:690px" %)
596 -|(% 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**
597 -|Value|Bat|(% style="width:191px" %)(((
598 -Temperature(DS18B20)(PC13)
599 -)))|(% style="width:78px" %)(((
600 -ADC(PA4)
601 -)))|(% style="width:135px" %)(((
602 -PWM_Setting
603 -
604 -&Digital Interrupt(PA8)
605 -)))|(% style="width:70px" %)(((
606 -Pulse period
607 -)))|(% style="width:89px" %)(((
608 -Duration of high level
609 -)))
610 -
611 -[[image:image-20230817170702-1.png||height="161" width="1044"]]
612 -
613 -
614 -When the device detects the following PWM signal ,decoder will converts the pulse period and high-level duration to frequency and duty cycle.
615 -
616 -**Frequency：**
617 -
618 -(% class="MsoNormal" %)
619 -(% 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）;
620 -
621 -(% class="MsoNormal" %)
622 -(% 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）;
623 -
624 -
625 -(% class="MsoNormal" %)
626 -**Duty cycle:**
627 -
628 -Duty cycle= Duration of high level/ Pulse period*100 ~(%).
629 -
630 -[[image:image-20230818092200-1.png||height="344" width="627"]]
631 -
632 -
633 -===== 2.3.2.10.b  Downlink, PWM output =====
634 -
635 -
636 -[[image:image-20230817173800-3.png||height="412" width="685"]]
637 -
638 -Downlink:  (% style="color:#037691" %)**0B xx xx xx yy zz zz**
639 -
640 - xx xx xx is the output frequency, the unit is HZ.
641 -
642 - yy is the duty cycle of the output, the unit is %.
643 -
644 - zz zz is the time delay of the output, the unit is ms.
645 -
646 -
647 -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.
648 -
649 -The oscilloscope displays as follows:
650 -
651 -[[image:image-20230817173858-5.png||height="694" width="921"]]
652 -
653 -
654 654  === 2.3.3  ​Decode payload ===
655 655  
656 656  
... ... @@ -714,9 +714,9 @@
714 714  ==== 2.3.3.4  Analogue Digital Converter (ADC) ====
715 715  
716 716  
717 -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.
718 718  
719 -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.
720 720  
721 721  [[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"]]
722 722  
... ... @@ -724,10 +724,6 @@
724 724  (% 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.**
725 725  
726 726  
727 -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.
728 -
729 -[[image:image-20230811113449-1.png||height="370" width="608"]]
730 -
731 731  ==== 2.3.3.5 Digital Interrupt ====
732 732  
733 733  
... ... @@ -796,7 +796,7 @@
796 796  
797 797  Below is the connection to SHT20/ SHT31. The connection is as below:
798 798  
799 -[[image:image-20230610170152-2.png||height="501" width="846"]]
726 +[[image:image-20230513103633-3.png||height="448" width="716"]]
800 800  
801 801  
802 802  The device will be able to get the I2C sensor data now and upload to IoT Server.
... ... @@ -874,40 +874,9 @@
874 874  [[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"]]
875 875  
876 876  
877 -==== 2.3.3.12  PWM MOD ====
804 +==== 2.3.3.12  Working MOD ====
878 878  
879 879  
880 -* (((
881 -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.
882 -)))
883 -* (((
884 -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:
885 -)))
886 -
887 - [[image:image-20230817183249-3.png||height="320" width="417"]]
888 -
889 -* (((
890 -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.
891 -)))
892 -* (((
893 -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.
894 -)))
895 -* (((
896 -PWM Input allows low power consumption. PWM Output to achieve real-time control, you need to go to Class C. Power consumption will not be low.
897 -
898 -For PWM Output Feature, there are two consideration to see if the device can be powered by battery or have to be powered by external DC.
899 -
900 -a) If needs to realtime control output, SN50v3-LB has be run in CLass C and have to use external power source.
901 -
902 -b) If the output duration is more than 30 seconds, bettert to use external power source. 
903 -
904 -
905 -
906 -)))
907 -
908 -==== 2.3.3.13  Working MOD ====
909 -
910 -
911 911  The working MOD info is contained in the Digital in & Digital Interrupt byte (7^^th^^ Byte).
912 912  
913 913  User can use the 3^^rd^^ ~~ 7^^th^^  bit of this byte to see the working mod:
... ... @@ -923,7 +923,6 @@
923 923  * 6: MOD7
924 924  * 7: MOD8
925 925  * 8: MOD9
926 -* 9: MOD10
927 927  
928 928  == 2.4 Payload Decoder file ==
929 929  
... ... @@ -981,7 +981,7 @@
981 981  (% style="color:blue" %)**AT Command: AT+TDC**
982 982  
983 983  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
984 -|=(% 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**
985 985  |(% style="width:156px" %)AT+TDC=?|(% style="width:137px" %)Show current transmit Interval|(((
986 986  30000
987 987  OK
... ... @@ -1019,7 +1019,7 @@
1019 1019  (% style="color:blue" %)**AT Command: AT+INTMOD1，AT+INTMOD2，AT+INTMOD3**
1020 1020  
1021 1021  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1022 -|=(% 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**
1023 1023  |(% style="width:154px" %)AT+INTMOD1=?|(% style="width:196px" %)Show current interrupt mode|(% style="width:157px" %)(((
1024 1024  0
1025 1025  OK
... ... @@ -1063,7 +1063,7 @@
1063 1063  (% style="color:blue" %)**AT Command: AT+5VT**
1064 1064  
1065 1065  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1066 -|=(% 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**
1067 1067  |(% style="width:154px" %)AT+5VT=?|(% style="width:196px" %)Show 5V open time.|(% style="width:157px" %)(((
1068 1068  500(default)
1069 1069  OK
... ... @@ -1089,7 +1089,7 @@
1089 1089  (% style="color:blue" %)**AT Command: AT+WEIGRE,AT+WEIGAP**
1090 1090  
1091 1091  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1092 -|=(% 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**
1093 1093  |(% style="width:154px" %)AT+WEIGRE|(% style="width:196px" %)Weight is initialized to 0.|(% style="width:157px" %)OK
1094 1094  |(% style="width:154px" %)AT+WEIGAP=？|(% style="width:196px" %)400.0|(% style="width:157px" %)OK(default)
1095 1095  |(% style="width:154px" %)AT+WEIGAP=400.3|(% style="width:196px" %)Set the factor to 400.3.|(% style="width:157px" %)OK
... ... @@ -1116,7 +1116,7 @@
1116 1116  (% style="color:blue" %)**AT Command: AT+SETCNT**
1117 1117  
1118 1118  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1119 -|=(% 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**
1120 1120  |(% style="width:154px" %)AT+SETCNT=1,100|(% style="width:196px" %)Initialize the count value 1 to 100.|(% style="width:157px" %)OK
1121 1121  |(% style="width:154px" %)AT+SETCNT=2,0|(% style="width:196px" %)Initialize the count value 2 to 0.|(% style="width:157px" %)OK
1122 1122  
... ... @@ -1137,7 +1137,7 @@
1137 1137  (% style="color:blue" %)**AT Command: AT+MOD**
1138 1138  
1139 1139  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1140 -|=(% 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**
1141 1141  |(% style="width:154px" %)AT+MOD=?|(% style="width:196px" %)Get the current working mode.|(% style="width:157px" %)(((
1142 1142  OK
1143 1143  )))
... ... @@ -1153,33 +1153,6 @@
1153 1153  * Example 1: Downlink Payload: 0A01  **~-~-->**  AT+MOD=1
1154 1154  * Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1155 1155  
1156 -=== 3.3.8 PWM setting ===
1157 -
1158 -
1159 -Feature: Set the time acquisition unit for PWM input capture.
1160 -
1161 -(% style="color:blue" %)**AT Command: AT+PWMSET**
1162 -
1163 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1164 -|=(% 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**
1165 -|(% style="width:154px" %)AT+PWMSET=?|(% style="width:196px" %)0|(% style="width:157px" %)(((
1166 -0(default)
1167 -
1168 -OK
1169 -)))
1170 -|(% 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" %)(((
1171 -OK
1172 -
1173 -)))
1174 -|(% 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
1175 -
1176 -(% style="color:blue" %)**Downlink Command: 0x0C**
1177 -
1178 -Format: Command Code (0x0C) followed by 1 bytes.
1179 -
1180 -* Example 1: Downlink Payload: 0C00  **~-~-->**  AT+PWMSET=0
1181 -* Example 2: Downlink Payload: 0C01  **~-~-->**  AT+PWMSET=1
1182 -
1183 1183  = 4. Battery & Power Consumption =
1184 1184  
1185 1185  
... ... @@ -1198,12 +1198,12 @@
1198 1198  * Update with new features.
1199 1199  * Fix bugs.
1200 1200  
1201 -**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]]**
1202 1202  
1203 1203  **Methods to Update Firmware:**
1204 1204  
1205 -* (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/]]**
1206 -* 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]]**.
1207 1207  
1208 1208  = 6. FAQ =
1209 1209  
... ... @@ -1213,22 +1213,6 @@
1213 1213  * **[[Hardware Source Files>>https://github.com/dragino/Lora/tree/master/LSN50/v3.0]].**
1214 1214  * **[[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].**
1215 1215  
1216 -== 6.2 How to generate PWM Output in SN50v3-LB? ==
1217 -
1218 -
1219 -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]]**.
1220 -
1221 -
1222 -== 6.3 How to put several sensors to a SN50v3-LB? ==
1223 -
1224 -
1225 -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.
1226 -
1227 -[[Reference Supplier>>https://www.yscableglands.com/cable-glands/nylon-cable-glands/cable-gland-rubber-seal.html]].
1228 -
1229 -[[image:image-20230810121434-1.png||height="242" width="656"]]
1230 -
1231 -
1232 1232  = 7. Order Info =
1233 1233  
1234 1234  
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