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pwnagotchi-bt-power

A very simple, silly utility which monitors the Bluetooth interface of a Pwnagotchi and cleanly shuts it down on receiving a command from a mobile phone.

Relies upon the Bluedot Python module and Android app to function.

What I was trying to do is shut my Pwnagotchi off without just yanking the power and gambling with corrupting the microSD card every time. Rather than shoehorn in a button to connect to the GPIO pins and figure out which ones weren't being used by the display I have I decided to make use of the Bluetooth interface on my mobile.

The instructions are simple:

  • Install the Python 3 virtualenv utility.
    • sudo apt-get update
    • sudo apt-get install python-virtualenv
  • Install the utility.
    • Clone this repo onto your Pwnagotchi.
    • cd pwnagotchi-bt-power'
    • python3 -mvenv env
    • . env/bin/activate
    • pip install bluedot
  • Set the utility to start up on boot.
    • I use GNU Screen for this. I've included the bluetooth-power.sh script to make life easier for you.
    • Be sure that the startup script runs as the root user!
  • Pair your phone with your Pwnagotchi.
    • RasPi
      • sudo bluetoothctl
      • Type the following commands one at a time:
        • discoverable on
        • pairable on
        • agent on
        • default-agent
    • Phone
      • Settings -> Connections
      • Make sure Bluetooth is turned on.
      • Bluetooth (tap on the word not the switch)
      • Tap on your RasPi in the list.
    • RasPi:
      • 'yes'
      • quit
  • Reboot your Pwnagotchi.

To shut down your Pwnagotchi:

  • Open the Bluedot app on your phone.
  • Tap on your Pwnagotchi in the list.
  • Tap the big blue button.