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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**
	612	+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.
	614	+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.
	616	+(% class="MsoNormal" %)
	617	+(% 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
	619	+(% class="MsoNormal" %)
	620	+(% 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
	622	+(% class="MsoNormal" %)
	623	+Duty cycle:
	624	+
	625	+Duty cycle= Duration of high level/ Pulse period*100 ~(%).
	626	+
	627	+[[image:image-20230818092200-1.png||height="344" width="627"]]
	628	+
	629	+
619	619	===== 2.3.2.10.b  Downlink, PWM output =====
620	620
621	621	[[image:image-20230817173800-3.png||height="412" width="685"]]
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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.
	889	+Since the device can only detect a pulse period of 50ms when [[AT+PWMSET=0>>http://8.211.40.43/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-LB/#H3.3.8PWMsetting]] (counting in microseconds), it is necessary to change the value of PWMSET according to the frequency of input capture.
879	879
880	880
881	881	)))
...	...	@@ -1128,6 +1128,32 @@
1128	1128	* Example 1: Downlink Payload: 0A01  **~-~-->**  AT+MOD=1
1129	1129	* Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1130	1130
	1142	+=== 3.3.8 PWM setting ===
	1143	+
	1144	+Feature: Set the time acquisition unit for PWM input capture.
	1145	+
	1146	+(% style="color:blue" %)**AT Command: AT+PWMSET**
	1147	+
	1148	+(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
	1149	+|=(% 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**
	1150	+|(% style="width:154px" %)AT+PWMSET=?|(% style="width:196px" %)0|(% style="width:157px" %)(((
	1151	+0(default)
	1152	+
	1153	+OK
	1154	+)))
	1155	+|(% 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" %)(((
	1156	+OK
	1157	+
	1158	+)))
	1159	+|(% 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
	1160	+
	1161	+(% style="color:blue" %)**Downlink Command: 0x0C**
	1162	+
	1163	+Format: Command Code (0x0C) followed by 1 bytes.
	1164	+
	1165	+* Example 1: Downlink Payload: 0C00  **~-~-->**  AT+PWMSET=0
	1166	+* Example 2: Downlink Payload: 0C01  **~-~-->**  AT+PWMSET=1
	1167	+
1131	1131	= 4. Battery & Power Consumption =
1132	1132
1133	1133

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