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From version < 5.4 >
edited by Xiaoling
on 2022/07/22 18:00
To version < 5.5
edited by Xiaoling
on 2023/04/19 17:42
Change comment: There is no comment for this version

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6 -User might want to set Fix DR or Spreading Factor to get the maximum distance. This can be down via AT Command, Or Downlink Command (in case the device is of the latest Dragino LoRaWAN stack as specify here:[[ End Device AT or Downlink Command>>End Device AT Commands and Downlink Command]]
6 +User might want to set Fix DR or Spreading Factor to get the maximum distance. This can be down via AT Command, Or Downlink Command (in case the device is of the latest Dragino LoRaWAN stack as specify here:[[ End Device AT or Downlink Command>>End Device AT Commands and Downlink Command]].
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8 8  (((
9 9  The mapping for DataRate and Spreading Factor are different for each frequency band. User can refer the [[LoRaWAN regional parameter>>url:https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf]] to see how the map. For exampl, look at page 22, we can know that the DR0 for US915 band is SF10,125Khz.
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14 14  In our STM32 base LoRaWAN end node, user can use below command to change set fix DR.
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17 -(% style="color:blue" %)**AT+ADR=0 ** (%%) ~/~/ Disable ADR so server won't be able to change the DR on the sensor
18 -(% style="color:blue" %)**AT+DR=0**     (%%) ~/~/  Set the DR to the required DataRate.
19 -(% style="color:blue" %)**AT+TXP=50**   (%%) ~/~/ Manually set to highest power to 20dB. ( manually bypass 14dB limit in EU868 frequency)
17 +(% style="color:blue" %)**AT+ADR=0 ** (%%) ~/~/  Disable ADR so server won't be able to change the DR on the sensor
18 +(% style="color:blue" %)**AT+DR=0**     (%%) ~/~/  Set the DR to the required DataRate.
19 +(% style="color:blue" %)**AT+TXP=50**   (%%) ~/~/  Manually set to highest power to 20dB. ( manually bypass 14dB limit in EU868 frequency)
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22 22  (((
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