1. Check out our companion app, Forums for Android! Download from Google Play

Bluetooth Countdown Alarm Widget with Tasker

Discussion in 'Android Apps & Games' started by james899, Oct 7, 2012.

  1. james899

    james899 Member
    Thread Starter

    Aug 11, 2012
    I'm trying to do this:

    When a bluetooth device connects I need a countdown timer to start for a preset time (e.g. 20 mins). The remaining time should be shown decreasing on a 1x1 widget (showing the seconds, as well as minutes remaining is preferable). When the countdown finishes I need an audible alarm with popup button to snooze or dismiss it.

    If the bluetooth connection is dropped before the countdown ends, the countdown should be dismissed (until a bt connection is made again at which point it should begin a new countdown).

    It would be even better if the preset time could be a random figure within a set range e.g. between 30 mins to 70 mins.

    UPDATE: Here's a basic summary of how I did most of this:

    Create a profile with state bluetooth connected. Then create a task (e.g. Let's call it "Bt Alarm")


    Variable %mins Items 20:1

    Set Widget Label
    Name Alarm Widget Label %mins

    Minutes 1

    End For

    Perform Task
    Bt Alarm 2

    You need to create a task widget on your homescreen with the name "Alarm Widget" which points to this task called "Bt Alarm". This sets up a loop which will run for 20 times, each time, reducing the variable %mins by 1, and by re-setting the label of the widget each loop, the widget label effectively becomes a countdown widget. When the countdown is up, it performs the task "Bt Alarm 2" which is:

    Music Play
    Popup Task Buttons:
    Bluetooth Snooze
    Bluetooth Cancel

    Bluetooth Snooze:
    Music Stop
    Set Widget Label Alarm Widget Label: Snooze
    Wait Minutes 5
    Perform Task: Bt Alarm 2

    Bluetooth Cancel:
    Music Stop
    Stop Task: Bluetooth Snooze
    Set Widget Label: Alarm Widget Label: Off.

    To cancel when bluetooth disconnects before the alarm goes off:
    Create a profile for bluetooth Not connected (i.e. Inverted Bluetooth connected). Then:
    Stop Task: Bt Alarm 2
    Stop Task: Bluetooth Snooze
    Stop Task: Bt Alarm
    Set Widget Label: Alarm Widget Label Off.

    It might not be beautifully written but it works for me. Reply, if I haven't explained well enough.


  2. Would this project be useful to any one else? A description of why you would use this would be helpful.
  3. Bearcats

    Bearcats Well-Known Member

    Oct 19, 2012
    It is to me. As I want to disable WiFi enable mobile data when BT connects because that means I am in my car.

    I just found Tasker and its forums today and I think this functionality might just make me jump now to get my new phone versus waiting until after thanksgiving! LOL! :D
  4. SUroot

    SUroot Well-Known Member

    May 25, 2010
    UK Technical Lead; Desktop Support
    Riddlesden, West Yorkshire, UK
    Wouldn't setting wifi off when not connected yo your home ssid do that?

Share This Page