bayeosgatewayclient

A Python package to transfer client (sensor) data to a BayEOS Gateway. All data is send as BayEOS Frames over HTTP.

Prerequisites

• Python 3

Installation

You can either use the setup.py script, the Python Package Index (PIP) or a Linux binary to install the package.

Setup.py

Do the following steps to install the package via the setup.py script:

• git clone request git clone git://github.com/BayCEER/bayeosgatewayclient.git
• find the right directory cd bayeosgatewayclient
• run python setup.py install as root

Linux Binary (for Debian)

• Login as root
• Install basic tools for installation
  apt-get update
apt-get install wget gnupg
• Import the repository key
  wget -O - http://www.bayceer.uni-bayreuth.de/repos/apt/conf/bayceer_repo.gpg.key |apt-key add -
• Add the BayCEER Debian repository
  echo "deb http://www.bayceer.uni-bayreuth.de/repos/apt/debian $(lsb_release -c -s) main" | tee /etc/apt/sources.list.d/bayceer.list
• Update your repository cache
  apt-get update
• Install the package
  apt-get install python3-bayeosgatewayclient

Alternatively:

• run dpkg -i python3-bayeosgatewayclient_*_all.deb as root

Example usage

from time import sleep
from bayeosgatewayclient import BayEOSWriter, BayEOSSender
import tempfile
from os import path
import math 

NAME = 'SineWave'
URL = 'http://localhost:5533/gateway/frame/saveFlat'
USER= 'root'
PASSWORD = 'bayeos'
PATH = path.join(tempfile.gettempdir(),NAME)

# Create a writer thread 
writer = BayEOSWriter(PATH,max_time=5)
writer.save_msg('Writer was started.')

# Create a sender thread
sender = BayEOSSender(PATH, NAME, URL,user=USER,password=PASSWORD)
sender.start()

# Produce some values 
nr=0
angle = 0
while True:
    writer.save([nr,angle ,10*math.sin(angle)])    
    nr+=1
    angle+=0.1
    if angle > 360:
        angle = 0
    sleep(0.5)

More examples can be found in folder samplescripts

Useful Hints

• Logging: You can adjust the log level of BayEOS Writer and Sender by using the log_level argument.