Raspberry Pi - bluetooth connection and gaining status from sensors connected

[Divi77e]

Hello,
It's my first time using app inventor
I'm making app thats supposed to show on screen and maybe in notification tray that sensor connected to raspberry Pi sensed some metal. I'm using Raspberry Pi zero wh and inductive sensor.
I found how to connect to raspberry Pi using bluetooth from tutorial(no idea if it works didnt got hands on raspberry pi yet) but i didn't see how to catch data from sensors. Did someone did smth similar? Or maybe i missed some tutorial?
Thanks in advance!
EDT* I only want it to show info if the sensor detect something or not.

[Juan_Antonio]

Raspberry Pi. Firebase. Turn LED on/off. Get status of a PushButton. Slider. Servo

- Raspberry code. Python. Pyrebase. You need: pi@raspberrypi:~ $ python3 -V Python 3.7.3 pi@raspberrypi:~ $ pip --version pip 18.1 from /usr/lib/python2.7/dist-packages/pip (python 2.7) If you don't have pip, you can install it: pi@raspberrypi:~ $ curl https://bootstrap.pypa.io/get-pip.py | python3 You also need "Pyrebase", to communicate Python with Firebase. pi@raspberrypi:~ $ sudo pip 3 install Pyrebase In Raspbian we have a text editor for Python. [firebase13] Paste this code…

Connect the inductive sensor to a GPIO and get the state of that terminal, similar to the PushButton in the tutorial.