As we known,RSSI means Received Signal Strength Indicator,TXPOWER decide the power of output port.How do the two factors combine affect the device work?
As we known,RSSI means Received Signal Strength Indicator,TXPOWER decide the power of output port.How do the two factors combine affect the device work?
That's extreme simplification of real world;) There are many more factors:
There are many scientific publications about sub-GHz or 2.4GHz radiation and influence of environment and antenna/chip so you can comfortably study it for the rest of your life. If you don't want to spend so much time then popular intro to the subject would be: from BLE RSSI you can guess how far (depending on circumstances you will be +-5 up to +-30m out of reality) the transmitter is or if it goes closer/further. For simple applications like "is my beacon 5 or 20 meters away" it is in 80% of cases OK. If you want anything better and more reliable then you are in front of several moth (or rather year) project.