Wiki source code of Set uplinkdwell time
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1.2 | 1 | = 1. Introduction = |
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1.1 | 2 | |
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1.2 | 3 | This chapter introduces how users can change the uplinkdwell time. |
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1.1 | 4 | |
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1.2 | 5 | = 2. Default uplinkdwelltime = |
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1.1 | 6 | |
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1.2 | 7 | Take AS923 frequency band as an example. We can see the spread spectrum factor corresponding to the data rate. |
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1.1 | 8 | |
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1.2 | 9 | [[image:https://wiki.dragino.com/images/2/25/Vbn.png||alt="Vbn.png" height="290" width="523"]] |
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1.1 | 10 | |
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1.2 | 11 | The device default uplinkdwelltime=1, there are SF7, SF8, SF9 and SF10. |
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1.1 | 12 | |
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1.2 | 13 | If users want to ues SF11 and SF12, they need to set uplinkdwelltime=0. |
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1.1 | 14 | |
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1.2 | 15 | Users can use AT commands to set uplinkdwell time. |
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1.1 | 16 | |
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1.2 | 17 | [[image:https://wiki.dragino.com/images/thumb/b/bb/Uplinkdwelltime1.png/600px-Uplinkdwelltime1.png||alt="Uplinkdwelltime1.png" height="511" width="600"]] |
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1.1 | 18 | |
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1.2 | 19 | [[image:https://wiki.dragino.com/images/thumb/7/78/Uplinkdwelltime2.png/600px-Uplinkdwelltime2.png||alt="Uplinkdwelltime2.png" height="301" width="600"]] |
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1.1 | 20 | |
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1.2 | 21 | = 3. Use AT command to set uplinkdwell time = |
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1.1 | 22 | |
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1.2 | 23 | 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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1.1 | 24 | |
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1.2 | 25 | * Use AT command: AT+DWELLT=0, set to Uplink Dwelltime=0. |
| 26 | * Use AT command: AT+DWELLT=1, set to Uplink Dwelltime=1. | ||
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1.1 | 27 | |
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1.2 | 28 | Or via application downlink command: |
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1.1 | 29 | |
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1.2 | 30 | * Downlink Payload: 0x2500, Set AT+DWELLT=0 to uplink. |
| 31 | * Downlink Payload: 0x2501, Set AT+DWELLT=1 to uplink. |