Bluetooth by pybluez

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

Hi folks,

In my next project for the Jetson-Nano, I am working with a Bluetooth module Mate gold from Sparkfun and Teensy 4.0 sending raw data and I want to read it on python. So far looking on google I found that pybluez can do that job, but when I print the received package, it get split like this:

python_bluetooth
python_bluetooth789×841 51 KB

Trying to understand the issue I am sending the same data via USB at the same time:
My Teensy Code:
Arduino

arduino_serial
arduino_serial779×386 17.9 KB

Then I installed minicom and configured it to read the Bluetooth driver “rfcomm0”, this is how looks like:

minicom_Bluetooth
minicom_Bluetooth974×482 24.3 KB

Now, this is showing me that the problem looks like to be in python pybluez itself, however due to lack of info on google I can’t see what or where is the issue.

Does anyone had the same issue or know an alternative module that can be used with python to read the incoming package via Bluetooth without that odd split?

Thanks,

3

If someone else have this problem in the future, the solution that I have found is:

  1. Bind the connection with your Bluetooth device first on the terminal:
    sudo rfcomm0 bind 0 00:00:00:00:00:00 1
    where 00:00:00:00:00:00 is the mac address of your Bluetooth module.

  2. using pyserial:

import serial
BT = serial.Serial(/dev/rfcomm0’,baudrate=115200, timeout=5)
data = BT.readline().decode(‘utf-8’)
print(data)

5

Great! Thanks for the update!

6

Hey! Did you have to recompile your kernel to get rfcomm working, or did it work on the latest L4T out of the box? Thanks!