unsupported bluetooth stack implementation

Step 1 is assumed to be done out-of-band, meaning the pairing was completed beforehand. Listen to the newly-created SP channel for incoming requests, and respond accordingly (accept) when they arrive.Create a Serial Port (SP) channel, thereby advertising that we support serial port functionality.Paging requests are what allows a connection to be established (see this blog post).Ensure our host Bluetooth device is open to page scans (this should be the default mode).The general steps for establishing a SPP connection is as follows: In modern Linux systems, Bluetooth is largely managed by BlueZ, the official Linux Bluetooth protocol stack. Thus, having never worked with the Bluetooth stack, I faced some difficulties in figuring out what needed to be done, and how to go about doing it. However, RFCOMM (and thus SPP) is only supported in Bluetooth Classic. muka/go-bluetooth or paypal/gatt), the official Linux Bluetooth protocol stack, they mainly targeted Bluetooth LE. Unfortunately, the Bluetooth ecosystem in Go is not as well-developed: while there are a couple of libraries that interface with BlueZ (e.g. While this is extremely easy in Python, I decided to use Go for its more performant implementation of concurrency. And the simplest way to pass (string-based) messages to-and-fro is via the SPP protocol, leading me to figure out how this can be done. As part of the coursework’s requirements, the router had to communicate with an Android application via Bluetooth. In a nutshell, the router program runs on a Raspberry Pi, and is responsible for interfacing with various components on different protocols, routing messages between them. Unfortunately, coursework, exams, and other matters got in the way 🙃) Contents (I actually meant to publish this some time last year. This post will discuss programmatically interfacing with BlueZ, and implementing Bluetooth’s Serial Port Protocol (SPP) in Go. Last year, as part of my coursework (NTU’s CZ3004 Multi-disciplinary Project), I developed a simple router program in Go.

Unsupported bluetooth stack implementation