Wiki source code of Set uplinkdwell time
Last modified by Xiaoling on 2023/04/20 09:16
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2 | **Table of** **Contents:** | ||
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4 | {{toc/}} | ||
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9 | = 1. Introduction = | ||
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12 | This chapter introduces how users can change the uplinkdwell time. | ||
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15 | = 2. Default uplinkdwelltime = | ||
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18 | Take AS923 frequency band as an example. We can see the spread spectrum factor corresponding to the data rate. | ||
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21 | [[image:image-20220527091341-1.png]] | ||
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24 | The device default (% style="color:blue" %)**uplinkdwelltime=1**(%%), there are **SF7, SF8, SF9 and SF10**. | ||
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26 | If users want to ues **SF11 and SF12,** they need to set (% style="color:blue" %)**uplinkdwelltime=0**. | ||
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28 | Users can use AT commands to set uplinkdwell time. | ||
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31 | [[image:image-20220527091422-2.png]] | ||
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34 | [[image:image-20220527091503-3.png]] | ||
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37 | = 3. Use AT command to set uplinkdwell time = | ||
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40 | 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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42 | * Use AT command: (% style="color:blue" %)**AT+DWELLT=0**(%%), set to Uplink Dwelltime=0. | ||
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44 | * Use AT command: (% style="color:blue" %)**AT+DWELLT=1**(%%), set to Uplink Dwelltime=1. | ||
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46 | Or via application downlink command: | ||
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48 | * Downlink Payload:** (% style="color:blue" %)0x2500(%%)**, Set AT+DWELLT=0 to uplink. | ||
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50 | * Downlink Payload: (% style="color:blue" %)**0x2501**(%%), Set AT+DWELLT=1 to uplink. |