rssi
The Received Signal Strength Indicator (RSSI), in decibels, of the peripheral.
Declaration
var rssi: NSNumber? { get }Discussion
Returns a number, in decibels, that indicates the RSSI of the peripheral while connected to the central manager. You can use a connected peripheral’s RSSI property to determine the peripheral’s proximity. The default value of this property is nil; the first successful call to readRSSI() sets its value.