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MultiNav Pro+ BLE - adaptive TX power or always broadcasting at max?

Gerardo CasasolaJuly 14, 2026
Been integrating the MultiNav Pro+ BLE module into a remote sensor node project and one thing I haven't been able to nail down yet is whether the module dynamically adjusts its TX power based on link quality or if it just blasts at full power all the time. Like, if I have two nodes that are only 10 meters apart, is it burning the same power budget as if they were trying to maintain a 50km link? That would be pretty rough for battery-constrained deployments.
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AdamJuly 14, 2026
@Gerardo Casasola good question — this is something worth getting a definitive answer on from the firmware side rather than guessing, because the STM32WB07 does support TX power control at the hardware level, but whether the current firmware actually implements adaptive power based on RSSI feedback is something I'd want to confirm against the source before telling you it does.
 
What I'd suggest is pulling up the GitHub repo (https://github.com/RFOXiA/MultiNav-Pro-Long-Range-BLE-Module-Firmware-STM32WB07) and checking how the radio init and connection management is handling TX power — if it's static, you'd see a fixed value set at startup with no RSSI-based adjustment loop. If you're running battery-constrained nodes at short range and the firmware is currently max-power-always, you could potentially patch in your own power stepping logic since you have full source access, which is one of the nice things about this platform.
 
Honestly this is a great thing to raise directly with Moamen too — adaptive TX for close-range mesh deployments is a real use case and if it's not in the firmware yet it probably should be.

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