Last modified by Bei Jinggeng on 2025/01/10 15:51
<
From version < 69.1 >
edited by Saxer Lin
on 2023/08/17 18:33
To version < 74.3 >
edited by Xiaoling
on 2023/08/19 15:41
>
Change comment: There is no comment for this version

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1 -XWiki.Saxer
1 +XWiki.Xiaoling
Content
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581 581  
582 582  ==== 2.3.2.10  MOD~=10 (PWM input capture and output mode，Since firmware v1.2) ====
583 583  
584 +
584 584  In this mode, the uplink can perform PWM input capture, and the downlink can perform PWM output.
585 585  
586 -[[It should be noted when using PWM mode.>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-LB/#H2.3.3.12A0PWMMOD]]
587 +[[It should be noted when using PWM mode.>>||anchor="H2.3.3.12A0PWMMOD"]]
587 587  
588 588  
589 589  ===== 2.3.2.10.a  Uplink, PWM input capture =====
590 590  
592 +
591 591  [[image:image-20230817172209-2.png||height="439" width="683"]]
592 592  
593 593  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:690px" %)
... ... @@ -609,15 +609,27 @@
609 609  [[image:image-20230817170702-1.png||height="161" width="1044"]]
610 610  
611 611  
612 -(% style="color:blue" %)**AT+PWMSET=AA（Default is 0）  ==> Corresponding downlink: 0B AA**
614 +When the device detects the following PWM signal ,decoder will converts the pulse period and high-level duration to frequency and duty cycle.
613 613  
614 -When AA is 0, the unit of PWM capture time is microsecond. The capture frequency range is between 20HZ and 100000HZ.  
616 +Frequency：
615 615  
616 -When AA is 1, the unit of PWM capture time is millisecond.  The capture frequency range is between 5HZ and 250HZ.  
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）;
617 617  
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）;
618 618  
624 +(% class="MsoNormal" %)
625 +Duty cycle:
626 +
627 +Duty cycle= Duration of high level/ Pulse period*100 ~(%).
628 +
629 +[[image:image-20230818092200-1.png||height="344" width="627"]]
630 +
631 +
619 619  ===== 2.3.2.10.b  Downlink, PWM output =====
620 620  
634 +
621 621  [[image:image-20230817173800-3.png||height="412" width="685"]]
622 622  
623 623  Downlink:  (% style="color:#037691" %)**0B xx xx xx yy zz zz**
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875 875  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.
876 876  )))
877 877  * (((
878 -Since the device can only detect a pulse period of 50ms when AT+PWMSET=0 (counting in microseconds), it is necessary to change the value of PWMSET according to the frequency of input capture.
892 +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.
893 +
894 +
879 879  )))
880 880  
881 -
882 882  ==== 2.3.3.13  Working MOD ====
883 883  
884 884  
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1127 1127  * Example 1: Downlink Payload: 0A01  **~-~-->**  AT+MOD=1
1128 1128  * Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1129 1129  
1145 +=== 3.3.8 PWM setting ===
1146 +
1147 +Feature: Set the time acquisition unit for PWM input capture.
1148 +
1149 +(% style="color:blue" %)**AT Command: AT+PWMSET**
1150 +
1151 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1152 +|=(% 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**
1153 +|(% style="width:154px" %)AT+PWMSET=?|(% style="width:196px" %)0|(% style="width:157px" %)(((
1154 +0(default)
1155 +
1156 +OK
1157 +)))
1158 +|(% 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" %)(((
1159 +OK
1160 +
1161 +)))
1162 +|(% 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
1163 +
1164 +(% style="color:blue" %)**Downlink Command: 0x0C**
1165 +
1166 +Format: Command Code (0x0C) followed by 1 bytes.
1167 +
1168 +* Example 1: Downlink Payload: 0C00  **~-~-->**  AT+PWMSET=0
1169 +* Example 2: Downlink Payload: 0C01  **~-~-->**  AT+PWMSET=1
1170 +
1130 1130  = 4. Battery & Power Consumption =
1131 1131  
1132 1132  
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