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Author

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1		-XWiki.Xiaoling
	1	+XWiki.Saxer

Content

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609	609	[[image:image-20230817170702-1.png||height="161" width="1044"]]
610	610
611	611
612		-When the device detects the following PWM signal ,decoder will converts the pulse period and high-level duration to frequency and duty cycle.
	612	+(% style="color:blue" %)**AT+PWMSET=AA（Default is 0）  ==> Corresponding downlink: 0B AA**
613	613
614		-Frequency：
	614	+When AA is 0, the unit of PWM capture time is microsecond. The capture frequency range is between 20HZ and 100000HZ.
615	615
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）;
	616	+When AA is 1, the unit of PWM capture time is millisecond.  The capture frequency range is between 5HZ and 250HZ.
618	618
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）;
621	621
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		-
630	630	===== 2.3.2.10.b  Downlink, PWM output =====
631	631
632	632	[[image:image-20230817173800-3.png||height="412" width="685"]]
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886	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	887	)))
888	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		-
	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	892	)))
893	893
	881	+
894	894	==== 2.3.3.13  Working MOD ====
895	895
896	896
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1139	1139	* Example 1: Downlink Payload: 0A01  **~-~-->**  AT+MOD=1
1140	1140	* Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1141	1141
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		-
1168	1168	= 4. Battery & Power Consumption =
1169	1169
1170	1170

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1		-XWiki.Saxer

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