Working 20m distance
great!
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https://www.bluetooth.com/bluetooth-resources/intro-to-bluetooth-low-energy-coded-phy/
https://www.cnx-software.com/2024/07/20/blette-stick-bluetooth-5-0-le-off-grid-messaging-1-1km-range/
https://novelbits.io/bluetooth-long-range-coded-phy/
https://buymeacoffee.com/ripplebiz/esp-now-overview
