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490	490	* Reply to the confirmation package: 14 01
491	491	* Reply to non-confirmed packet: 14 00
492	492
493		-
494		-
495	495	== 2.8 Frequency Plans ==
496	496
497	497	(((
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547	547	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
548	548	* Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
549	549
550		-
551		-
552		-
553	553	=== 2.8.3 CN470-510 (CN470) ===
554	554
555	555	Used in China, Default use CHE=1
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616	616	* Check what sub-band the LoRaWAN server ask from the OTAA Join Accept message and switch to that sub-band
617	617	* Use the Join successful sub-band if the server doesn’t include sub-band info in the OTAA Join Accept message ( TTN v2 doesn't include)
618	618
619		-
620		-
621		-
622	622	=== 2.8.5 AS920-923 & AS923-925 (AS923) ===
623	623
624	624	(% style="color:blue" %)**Default Uplink channel:**
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733	733	* The sensor is detected when the device is turned on, and it will flash 4 times quickly when it is detected.
734	734	* Blink once when device transmit a packet.
735	735
736		-
737		-
738		-
739	739	== 2.10 ​Firmware Change Log ==
740	740
741	741
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779	779
780	780	(% style="color:#037691" %)**AT Command: AT+TDC**
781	781
782		-[[image:image-20220607171554-8.png]]
783	783
	772	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:710px" %)
	773	+|(% style="width:154px" %)**Command Example**|(% style="width:223px" %)**Function**|(% style="width:330px" %)**Response**
	774	+|(% style="width:154px" %)AT+TDC=?|(% style="width:223px" %)Show current transmit Interval|(% style="width:330px" %)(((
	775	+30000
784	784
	777	+OK
785	785
	779	+the interval is 30000ms = 30s
	780	+)))
	781	+|(% style="width:154px" %)AT+TDC=60000|(% style="width:223px" %)Set Transmit Interval|(% style="width:330px" %)(((
	782	+OK
	783	+
	784	+Set transmit interval to 60000ms = 60 seconds
	785	+)))
	786	+
786	786	(% style="color:#037691" %)**Downlink Command: 0x01**
787	787
788	788	Format: Command Code (0x01) followed by 3 bytes time value.
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792	792	* Example 1: Downlink Payload: 0100001E ~/~/ Set Transmit Interval (TDC) = 30 seconds
793	793	* Example 2: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds
794	794
795		-
796		-
797	797	== 3.2 Set Interrupt Mode ==
798	798
799	799	Feature, Set Interrupt mode for GPIO_EXIT.

image-20220607171554-8.png

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1		-XWiki.Xiaoling

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1		-12.7 KB

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