Wiki source code of Set uplinkdwell time
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| 1 | (% class="wikigeneratedid" %) | ||
| 2 | **Contents:** | ||
| 3 | |||
| 4 | {{toc/}} | ||
| 5 | |||
| 6 | = 1. Introduction = | ||
| 7 | |||
| 8 | This chapter introduces how users can change the uplinkdwell time. | ||
| 9 | |||
| 10 | |||
| 11 | = 2. Default uplinkdwelltime = | ||
| 12 | |||
| 13 | Take AS923 frequency band as an example. We can see the spread spectrum factor corresponding to the data rate. | ||
| 14 | |||
| 15 | [[image:image-20220527091341-1.png]] | ||
| 16 | |||
| 17 | The device default uplinkdwelltime=1, there are SF7, SF8, SF9 and SF10. | ||
| 18 | |||
| 19 | If users want to ues SF11 and SF12, they need to set uplinkdwelltime=0. | ||
| 20 | |||
| 21 | Users can use AT commands to set uplinkdwell time. | ||
| 22 | |||
| 23 | [[image:image-20220527091422-2.png]] | ||
| 24 | |||
| 25 | |||
| 26 | [[image:image-20220527091503-3.png]] | ||
| 27 | |||
| 28 | |||
| 29 | = 3. Use AT command to set uplinkdwell time = | ||
| 30 | |||
| 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. | ||
| 32 | |||
| 33 | * Use AT command: **(% style="color:#4F81BD" %)AT+DWELLT=0**(%%), set to Uplink Dwelltime=0. | ||
| 34 | * Use AT command: **(% style="color:#4F81BD" %)AT+DWELLT=1**(%%), set to Uplink Dwelltime=1. | ||
| 35 | |||
| 36 | Or via application downlink command: | ||
| 37 | |||
| 38 | * Downlink Payload:** (% style="color:#4F81BD" %)0x2500**(%%), Set AT+DWELLT=0 to uplink. | ||
| 39 | * Downlink Payload: **(% style="color:#4F81BD" %)0x2501**(%%), Set AT+DWELLT=1 to uplink. |