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738	738	The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
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	740	+
740	740	* **AT Command:**
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742	742	**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
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751	751	[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
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	755	+* Downlink Payload:
	756	+
	757	+0x09 aa bb same as AT+CMDEAR=aa,bb
	758	+
	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	+
754	754	* **Downlink Payload:**
755	755
756	756	**0x09 aa bb** same as AT+CMDEAR=aa,bb
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803		-==== ====
	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)