Wiki source code of Set uplinkdwell time

Version 5.2 by Xiaoling on 2022/05/27 09:15

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	2	Contents:
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	4	{{toc/}}
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1.2	6	= 1. Introduction =
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1.2	8	This chapter introduces how users can change the uplinkdwell time.
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1.2	11	= 2. Default uplinkdwelltime =
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1.2	13	Take AS923 frequency band as an example. We can see the spread spectrum factor corresponding to the data rate.
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3.2	15	[[image:image-20220527091341-1.png]]
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1.2	17	The device default uplinkdwelltime=1, there are SF7, SF8, SF9 and SF10.
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1.2	19	If users want to ues SF11 and SF12, they need to set uplinkdwelltime=0.
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1.2	21	Users can use AT commands to set uplinkdwell time.
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5.2	23	[[image:image-20220527091422-2.png]]
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5.2	26	[[image:image-20220527091503-3.png]]
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1.2	29	= 3. Use AT command to set uplinkdwell time =
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1.2	31	Since Dragino LoRaWAN Stack DR_LWS_005, user is able to set the uplink Dwelltime in AS923 and AU915 manual or use a application side downlink command to set it.
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1.2	33	* Use AT command: AT+DWELLT=0, set to Uplink Dwelltime=0.
	34	* Use AT command: AT+DWELLT=1, set to Uplink Dwelltime=1.
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1.2	36	Or via application downlink command:
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1.2	38	* Downlink Payload: 0x2500, Set AT+DWELLT=0 to uplink.
	39	* Downlink Payload: 0x2501, Set AT+DWELLT=1 to uplink.

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