Hi everyone,
I'm working on a project to create a Bluetooth RFCOMM server on my Raspberry Pi. The goal is to replace a UART-based CLI interface with a Bluetooth-based one. The server should allow me to connect from another device (e.g., a PC or smartphone), open a serial port, and communicate with the CLI for tasks like controlling GPIO pins.
Here’s what I’ve done so far:
I've written a basic RFCOMM server in C, which listens on Channel 1 for incoming connections.
The server echoes back any data it receives from the client.
The server runs without errors and waits for connections.
However, I’m having trouble verifying if the server is working properly. Here are the steps I’ve tried:
Enabled Bluetooth on the Raspberry Pi using hciconfig hci0 up.
Scanned for the Raspberry Pi from my PC and smartphone. The Raspberry Pi appears as a device, but I’m not sure if it’s discoverable properly or if it’s ready to accept connections cause it doesn't connect ("unable to connect"),
My Questions:
Is pairing directly from the PC or smartphone the correct way to establish the connection with an RFCOMM server?
Once paired, what steps should I take to open a serial connection and send data to test the server functionality?
Are there additional configurations I need to enable on the Raspberry Pi for the pairing and serial communication to work?
I'm unsure if I'm approaching this the right way, and I’d appreciate any guidance or best practices for setting up and testing an RFCOMM server like this.
Thanks in advance for your help!
I'm working on a project to create a Bluetooth RFCOMM server on my Raspberry Pi. The goal is to replace a UART-based CLI interface with a Bluetooth-based one. The server should allow me to connect from another device (e.g., a PC or smartphone), open a serial port, and communicate with the CLI for tasks like controlling GPIO pins.
Here’s what I’ve done so far:
I've written a basic RFCOMM server in C, which listens on Channel 1 for incoming connections.
The server echoes back any data it receives from the client.
The server runs without errors and waits for connections.
However, I’m having trouble verifying if the server is working properly. Here are the steps I’ve tried:
Enabled Bluetooth on the Raspberry Pi using hciconfig hci0 up.
Scanned for the Raspberry Pi from my PC and smartphone. The Raspberry Pi appears as a device, but I’m not sure if it’s discoverable properly or if it’s ready to accept connections cause it doesn't connect ("unable to connect"),
My Questions:
Is pairing directly from the PC or smartphone the correct way to establish the connection with an RFCOMM server?
Once paired, what steps should I take to open a serial connection and send data to test the server functionality?
Are there additional configurations I need to enable on the Raspberry Pi for the pairing and serial communication to work?
I'm unsure if I'm approaching this the right way, and I’d appreciate any guidance or best practices for setting up and testing an RFCOMM server like this.
Thanks in advance for your help!
Statistics: Posted by matanpapa — Fri Dec 20, 2024 2:58 pm
