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 RSSI value over time.
Can someone give me a hand?
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I am working on Android platform 2.1 and trying to make an app that can get the Bluetooth signal strength from remote devices. It seems i should try to read the 'RSSI'
something like : int rssi = intent.getIntExtra (BluetoothDevice.EXTRA_RSSI, Integer.MIN_VALUE);
But it just keep returning the latter default value.
Did anyone ever manage to get the value of RSSI? Do we need to pair the device before getting the RSSI?
I'm trying to determine location via bluetooth beacons and while I can discover and find all of the devices around me, when I try to grab the EXTRA_RSSI that's supposed to come through it doesn't work.
Here's the code I'm using and I get a 0 every time.
CODE:....................
I'm trying to write a program that can read the signal strength of a bluetooth device linked to my android 2.0 handset. Doesnt seem like android exposes anyway to get the RSSI unless it is during discovery. Is there any other way to get the signal strength of the device after the device has been detected? I read of a way to do it using NDK to access the underlying BlueZ API, but I dont know how to use that. Any help would be appreciated.
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Because of this, I can't run any project.
I have a question about bluetooth RSSI functionality on the Android (either 2.0 or 2.1):
It's easy enough to get the RSSI value when a bluetooth connection is created, but how can you repeatedly get the RSSI value of a connection that is already active? It's really important to be able to do this, because this lets you determine if bluetooth devices are close to each other or far away, but I can't find any appropriate function calls in the Android API.
Is there any way to comunicate an android phone with a computer trough bluetooth? Ive made a server/client applicattion in Java using bluetooth, but i need to do the client in Android and i dont know how to start, I dont know even if is possible. I only need to send a text message.
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1- If I first pair my phone with the device through Bluetooth Settings, no problem. The connection is made perfectly and the program works.
2- If not bonded beforehand, I get two errors in a row when I click on my device :
CODE:.................
I thought it would be quite easy to develop a bluetooth application on Android, but it looks like the support is very bad. While pairing works, my Nexus One with Android 2.1 can't connect to the PC. It's the same in Windows and Ubuntu. I used on my Desktop computer, in Windows, Hyperterminal and waited on an incoming bluetooth com-port. I searched already a bit, Maybe this:
http://code.google.com/p/backport-android-bluetooth/
or this library:
http://code.google.com/p/bluecove/
I'm able to discover devices which r bluetooth ON from my application. But when i try to connect using the Bluetoothsocket's connect() method, I'm getting an IOException: Connection refused.
I'm using the following UUID private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
I am using Bluetooth APIs to establish the connection. I using the Bluetooth chat application as a reference to communicate with the Bluetooth headset.
When I try to connect with Bluetooth headset I am getting IOException with the reason Connection refused.
Can any one tell me the reason for this exception if possible give me the solution if you already resolved the same.
Here is the code which i am using to establish the communication with the Bluetooth. And i also added the Bluetooth and Blutooth_Admin permissions to my manifest file. Code...
In my understand, Anroid app supports only SPP connection not HFP and A2DP. However, I want to initiate HFP and A2DP connection in Android app just like selecting Bluetooth device in Bluetooth Settings menu. I'm not sure it is possible to use a intent including BluetothDevice object, so the intent receiver can initiate HFP and A2DP connection. If you have a idea, could you let me know that?
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I am trying to use the Wifimanager to calculate the Signal Level of the access points found during a scan.
I am using the following method:
WifiManager.calculateSignalLevel(int, int)
But it appears to always return the same int no matter what the RSSI level is.
Here is my code:.............
The logging outputs 1 for all the test cases for calculateQoS(int).
Am I missing something simple here? Why is the SignalLevel always 1?
I´m trying to get the rssi value from the main cell i´m currently connected to in an application for Android 1.6. I´m using android.telephony.gsm.GsmCellLocation which does not have this value. For Android 2.1 its avaible android.telephony.SignalStrength, but I cannot find anything equivalent for API 4. Is there any other way or class available?
View 3 Replies View RelatedI have: A class called BT_Comm BT_Comm creates a bluetooth connection and allows me to send data with it via a method called sendData(int xxx, int yyy).Now, I use this BT_Comm in my main activity -the first one. Say I have 10 Activities, how could I access that same BT_Comm in other Activities?
Eg:
Activity 1 (main)
Code:
BT_Comm bt = new BT_Comm();
pubic void someMethod()
{
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[code]...
I have had my Incredible for one week. Paired it with my car with no problems. Today it started losing the bluetooth connection. I turn it on and with 15 seconds, it turns off. It will pair with my car but than disconnects when the bluetooth turns off. Took out the battery and that did not work. Anyone know what could be the problem?
View 3 Replies View RelatedWith my Instinct, I could browse the pics etc on the phone from my Macbook Pro via Bluetooth. When I try to browse the EVO over bluetooth, I just get connection errors. Is this possible to do?
View 2 Replies View RelatedI just spent the day looking for what the limits are for Android v4.3 limit on the BLE connection parameters.
Such as:
-Interval Min
-Interval Max
-Slave Latency
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No luck, Apple is nice enough to document all of these in their Bluetooth Design Guidelines, but Google hasn't been so nice.
Is there any way to retrieve the current cellular Signal Strength (RSSI) on Android 1.5?
I know there's a way to listen for signal strength updates through the TelephonyManager, but this seems to only give a "state," not a numeric value.
Is using the RSSI field on a neighboring cell fairly accurate? I'm guessing not, but I'm running out of ideas.
I need some clarification on API docs.
http://developer.android.com/reference/android/telephony/SignalStreng... getSignalStrength() indicates: "Get the GSM Signal Strength, valid values are (0-31, 99) as defined in TS 27.007 8.5"
[url] getRSSI() indicates "received signal strength or UNKNOWN_RSSI if unknown For GSM, it is in "asu" ranging from 0 to 31 (dBm = -113 + 2*asu) 0 means "-113 dBm or less" and 31 means "-51 dBm or greater" For UMTS, it is the Level index of CPICH RSCP defined in TS 25.125"
So, for 3G UMTS networks, does the SignalStrength class not return the same value as the NeighboringCellInfo class ? What are the chances that each RIL implementation is sending something different ?
Has anyone see negative value for signalStrength on UMTS networks as is possible for RSCP index values ?
I am having issues connecting my Sprint HTC Hero to my wife's BB 8350. I've paired and made both devices discoverable but they still won't connect. Can these devices connect to other phones or are they limited to headsets and PC's?
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