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Last modified by Xiaoling on 2025/04/23 15:56
From version 45.3
edited by Xiaoling
on 2022/06/02 17:05
Change comment: There is no comment for this version
To version 47.1
edited by Xiaoling
on 2022/06/02 17:12
Change comment: Uploaded new attachment "image-20220602171200-9.png", version {1}

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757 757  
758 758  
759 759  
760 -==== **Clear RS485 Command** ====
761 -
762 -The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
763 -
764 -
765 -* **AT Command:**
766 -
767 -(% style="color:#037691" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
768 -
769 -Example screen shot after clear all RS485 commands. 
770 -
771 -
772 -The uplink screen shot is:
773 -
774 -[[image:1654134704555-320.png]]
775 -
776 -
777 -* **Downlink Payload:**
778 -
779 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
780 -
781 -
782 -
783 783  ==== **Set Serial Communication Parameters** ====
784 784  
785 785  Set the Rs485 serial communication parameters:
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823 823  
824 824  
825 825  
826 -==== **Control output power duration** ====
827 -
828 -User can set the output power duration before each sampling.
829 -
830 -* **AT Command:**
831 -
832 -**Example:**
833 -
834 -**AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
835 -
836 -**AT+5VT=1000**  ~/~/ +5V output power will open 1s before each sampling.
837 -
838 -
839 -* **LoRaWAN Downlink Command:**
840 -
841 -**07 01 aa bb**  Same as AT+5VT=(aa bb)
842 -
843 -**07 02 aa bb**  Same as AT+3V3T=(aa bb)
803 +==== ====
image-20220602171200-8.png
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