I'm implementing iOS library that reads heart rate sensor data using Bluetooth 4.0 (AKA Bluetooth Smart AKA BLE).
I noticed that RSSI value is being updated only on demand (readRSSI) - otherwise is't always the same.
My doubt is: "Does reading or RSSI cause additional request to the sensor?". My consideration is about power saving of the device.
I suppose my question is generally to BLE, don't think it's iOS-specific...
Any thoughts are appreciated.