The Spreading Factor of the MLR003R device can be changed by sending a downlink to FPORT 4
The MLR003R operates at SF7 by default and can be changed to SF8
Downlink Structure:
MLR003RiEU61-07 FPORT 0x04: LoRa Data Rate
Spreading Factor | Hex Payload | Base64 Payload |
|---|---|---|
SF7 | 0 | AA== |
SF8 | 1 | AQ== |
Example for changing the Spreading Factor to SF8
Send the downlink message (Hex: 1 or Base64: AQ==) on FPORT4
The downlink will be sent to the device on the next uplink (Uplink will still be on SF7)
The device will rejoin to the gateway to change the Data Rate
The same downlink message (on step 1) will be sent again on FPORT 4 confirming the SF Change
The device will then send on SF8 from the next uplink onwards
