Last modified by Mengting Qiu on 2023/12/14 11:15

From version 89.1
edited by Saxer Lin
on 2023/07/15 11:59
Change comment: There is no comment for this version
To version 90.1
edited by Saxer Lin
on 2023/07/15 14:04
Change comment: There is no comment for this version

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... ... @@ -759,6 +759,35 @@
759 759  
760 760  * Example 2: Downlink Payload: 06000003  ~/~/  Set the interrupt mode to rising edge trigger
761 761  
762 +
763 +=== 3.3.3  Set Power Output Duration ===
764 +
765 +Control the output duration 3V3 . Before each sampling, device will
766 +
767 +~1. first enable the power output to external sensor,
768 +
769 +2. keep it on as per duration, read sensor value and construct uplink payload
770 +
771 +3. final, close the power output.
772 +
773 +(% style="color:blue" %)**AT Command: AT+3V3T**
774 +
775 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
776 +|=(% style="width: 155px;background-color:#4F81BD;color:white" %)**Command Example**|=(% style="width: 197px;background-color:#4F81BD;color:white" %)**Function**|=(% style="width: 158px;background-color:#4F81BD;color:white" %)**Response**
777 +|(% style="width:154px" %)AT+3V3T=?|(% style="width:196px" %)Show 3V3 open time.|(% style="width:157px" %)0 (default)
778 +OK
779 +|(% style="width:154px" %)AT+3V3T=1000|(% style="width:196px" %)Close after a delay of 1000 milliseconds.|(% style="width:157px" %)OK
780 +|(% style="width:154px" %)AT+3V3T=0|(% style="width:196px" %)Always turn on the power supply of 3V3 pin.|(% style="width:157px" %)OK
781 +
782 +(% style="color:blue" %)**Downlink Command: 0x07**(%%)
783 +Format: Command Code (0x07) followed by 3 bytes.
784 +
785 +The first byte is 01,the second and third bytes are the time to turn on.
786 +
787 +* Example 1: Downlink Payload: 07 01 00 00  **~-~-->**  AT+3V3T=0
788 +* Example 2: Downlink Payload: 07 01 01 F4  **~-~-->**  AT+3V3T=500
789 +
790 +
762 762  = 4. Battery & Power Consumption =
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764 764