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Questions tagged [rssi]

RSSI stands for Received signal strength indication

352 questions
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iOS / Too frequent rssi event from driver..?

So my question came up looking an the console output of some iOS 7.0.x devices via iPhone Configuration Utility the other day. I was puzzled to see several indications that the WiFi daemon registers WiFi rssi activity out of the blue for no apparent…
RTouris
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Estimating beacon proximity/distance based on RSSI - Bluetooth LE

I've got a simple iOS app which displays the proximity of the Bluetooth LE beacons it detects using such expressions as "immediate", "near" etc. and I need to write something similar on Android. I've followed the tutorial at Android developer and…
JakeP
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How to get cell service signal strength in Android?

I am trying to write a very simple Android application that checks the signal strength of the current cell. So far, I have only found something called getNeighboringCellInfo(), but I'm not really sure if that includes the current cell. How do I get…
Doughy
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Decreased BLE startScan detected devices on Android 5.0 Lollipop

Short version: In my tests with Android 5.0 Lollipop I have noticed android.bluetooth.le.BluetoothLeScanner detects BLE devices less frequently than Android 4.4 KitKat. Why is this and is there an alternative? Long version: I am developing an…
abelcookingfox
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Bluetooth LE Signal Strength Linux

Hello is there any way to get the signal strength of near by bluetooth le devises in linux? Or any good libraries for nodejs, php or mono (I do know some c++ or python but would prefer to say away from them) if a tool does not exisst but would be…
Tim Holum
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Distance calculation from RSSI BLE android

I know there is lot of question on stackoverflow related to my question, but I would like to know if there is any way to get the exact distance from RSSI. I have followed this link and some other git library methods for distance calculation as well…
Ajay Pandya
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Android 2.1: How do I poll the RSSI value of an existing Bluetooth connection?

I need to know the signal strength of a Bluetooth connection to a remote device that I make with my Android 2.1 phone. From the SDK, I can see that I can determine the RSSI at the time I discover the remote device. But I can't see how to update that…
Philipp
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Accessing all three BLE advertisement channels individually in iOS

Bluetooth Low Energy uses 40 channels, each 2 MHz wide, spanning the unlicensed 2.4 GHz radio band. Among the 40 channels, BLE advertisements are broadcast on three channels. These advertisement channels are nominally labeled 37, 38, and 39 and are…
santobedi
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1 answer

How to improve Bluetooth distance measuring using RSSI?

For my project I need to estimate the distance between a Smartphone and a bluetooth module. The Estimation doesn't have to be very precise. I only need to determine the distance with a margin of error of about 50cm. I did test the RSSI of two…
MeesterPatat
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Is there a way to explicitly control WiFi scan intervals in Android?

I am doing my Master thesis at the moment on WiFi positioning and in order to test my algorithms I needed to collect some data. To do this I have written a short and very simple program for Android which simply collects the RSSI for all availible…
while
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Is there any other way to get RSSI values than blueZ (Pybluez)

I am struggling very hard on this one, so any help / pointers would be greatly appreciated. I have been trying to get precise values from RSSI with pyblueZ I get some good results, but this below is the thing I don't want (from blueZ doc) : For a…
Navet
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how to get the rssi value for a bluetooth low energy device ?

I am new with android programming and trying to get rssi value form a BLE device for distance measurements.i can scan and get the name and mac address of the device but i've tried codes to get the rssi but can't get useful result,also i use the…
alaa
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How to continuously get RSSI without connecting to the BLE device?

My application needs to constantly get RSSI value of a bluetooth device to make some distance-rssi approximation, without connecting. However, callback method of the BluetoothAdapter gets the RSSI only once when the device scanned. // Device scan…
Alpha Carinae
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corebluetooth Reading RSSI error:The operation was cancelled

I'm developing an app using Corebluetooth framework, and connect to a BLE device to get RSSI value. I set a function to read RSSI periodly, the timer code is below NSTimer *timer; timer = [NSTimer scheduledTimerWithTimeInterval:1.2f target:self…
momoyo
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Bluetooth-Low-Energy RSSI changes periodically on Android devices

I noticed that the signal strength of Bluetooth Low Energy received on Androids is varying in cycles. The graph below represents the RSSI values of one BLE beacon over two minutes. The receiving Android and the beacon were both static with a…
Chris
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