This is a work-in-progress of what the understanding is of the Bluetooth profile required by Google Science Journal to be able to read Bluetooth (BLE) sensors

Service

Characteristic

Characteristic

Characteristic

from python-bluezero.

I've been looking around the app files. The heavy lifting for the Bluetooth sensors seems to happen in the following file:
https://github.com/google/science-journal/blob/master/OpenScienceJournal/whistlepunk_library/src/main/java/com/google/android/apps/forscience/whistlepunk/sensors/BluetoothSensor.java#L204

The above link is to a comment which states:
For Value (UUID:555a0003), it's a protobuf
Which I think is referring to Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data called Protocol Buffers

It is looking like the value is made up of a timestamp and value although the exact details are still a mystery at the time of writing.

from python-bluezero.

I asked a question in the Google Science Journal Support Forum about the Bluetooth Profile required and they have come back with "We do not have a BLE protocol layer that we are yet ready to support long-term"

The solution is to build an Android application package (APK) that interfaces between Science Journal and the Bluetooth as detailed here:
https://github.com/google/science-journal/blob/master/api/ScienceJournalApi/README-api.md

Writing the APK seems outside the scope of this project so I'm closing this

from python-bluezero.

Just wanted to capture here for future reference that the Bluetooth SIG has an adopted GATT specification for Environmental Sensing Profile and Environmental Sensing Service.
More information can be found at: https://www.bluetooth.com/specifications/adopted-specifications
This PDF and XML is probably the most useful

from python-bluezero.

Did you get any further with this? Now that the science journal has gone over to arduino and they can link to the arduino nano sense, it should be possible to pursue this. I want to make a physics sensor based on the adafruit feather sense but would prefer to work in circuitpython because arduino is a pain.

from python-bluezero.

This idea got abandoned previously because there was not a documented API accessible from the Raspberry Pi. I believe this is still the situation. If you know of some documentation then please share and I can take a look.

from python-bluezero.