2023.2

Bluetooth

Introduction

The Bluetooth Nodes provide a means for the user to perform several actions within the Bluetooth standard. Bluetooth allows for communication between wireless and fixed devices in the short range, like when a car connects to a mobile phone. More information can be found here.

Bluetooth Guideline

These are the guidelines for incorporating Bluetooth Communication into a Project.

  • Unless a device's Bluetooth address is already known or has been previously retrieved through other means, one should use the Scan For Bluetooth Devices Node to discover any devices in the nearby vicinity. This will return all pairable devices in range as well as their Bluetooth addresses.

  • Once a Bluetooth device has been discovered, it is possible to attempt pairing. Use Pair Bluetooth Device to initiate the pairing. Separately, use On Bluetooth Device Paired to execute any following Logic after pairing. This is to make sure pairing is successfully finished being established before doing anything. Only then is it possible to use the several Nodes that cover important functions of Bluetooth Communication.

    • Is Bluetooth Device Paired returns true or false if a device has been paired with (even if it is out of range), or an error message if there is an error.

    • Retrieve Call History returns the call history of a Bluetooth device (or devices), or an error message if there is an error.

    • Retrieve Phonebook returns the phonebook of a Bluetooth device (or devices), or an error message if there is an error.

    • Scan For Bluetooth Devices searches for Bluetooth devices in the general vicinity and returns Dictionary of them on success, or an error message if there is an error.

  • To revoke access rights to a device (essentially removing it as a possibility for interacting with), use the Unpair Bluetooth Device Node to start unpairing. Separately, use the On Bluetooth Device Unpaired Node to execute any following Logic. This is to make sure the device is removed properly before doing anything.

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