I am designing nodes which will remain stationary within a building, where a gateway will also reside.
This is using LMIC and a RFM95W module.
I am going for very low power and fairly short range communication.
- How can I manually adjust the Spreading Factor of my node, since
LMIC_setDrTxpow(DR_SF7,2)doesn’t seem to have any effect?
- I see that when I turn off ADR using
LMIC_setAdrMode(false)a bunch of downlink messages disappear, which I imagine is a good thing for bandwidth/power consumption, correct? Is it shortsighted for me to be turning off ADR? I would like to follow industry best-practices.
- Could be difficult to answer: Given my aim of low power and short range, is it reasonable to always use SF7 / 125kHz bandwidth for my application?
Thank you so much!