shreyansk2000 / blueberrypi

Bluetooth utility application with dedicated one-way Raspberry Pi Bluetooth communication

Blueberry Pi

Motivation

This project started as an exercise for a course at school, but after that was wrapped up due to the pandemic, I still worked on it for a somewhat satisfactory product. The idea was to be able to control some process on the Raspberry Pi using Bluetooth communication, which this application is successfully able to do.

Functionality

• Enable/Disable Bluetooth for current device
• Discover devices (that are not already bonded)
• Pair to new device
• List all bonded devices (i.e. devices whom have already paired), regardless of if they currently available
• Forget bonded devices
• Send a string to a paired Raspberry Pi (currently id is hard-coded). Amount and function depends on RPi end
• Wrapped in a neat custom UI created for a previous project which you can find here

Screenshots

Raspberry Pi Output

Sending a string after a successful connection will result in something like this:

Acknowledgments

I got a lot of help from the course resources, several YouTube tutorials, and the BlueTerm application APK. I'll be linking these resources here:

• Coding with Mitch: Bluetooth in Android Studio
• Circuit Digest: Bluetooth on the Raspberry Pi end (see description for tutorial as article)
• BlueTerm repo (that I found) - specifically src/es/pymasde/blueterm/BluetoothSerialService.java