A Monitor Session with Python - Revision history

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A Monitor Session with Python

Admin: Created page with "== A Monitor Session with Python == To understand the OWN messages better, you should start a monitor session on your Raspberry Pi and watch the OWN messages flying in from yo..."

2014-11-16T10:36:44Z

Created page with "== A Monitor Session with Python == To understand the OWN messages better, you should start a monitor session on your Raspberry Pi and watch the OWN messages flying in from yo..."

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== A Monitor Session with Python ==
To understand the OWN messages better, you should start a monitor session on your Raspberry Pi and watch the OWN messages flying in from your domotic system. Analyzing these messages gives you an idea how it works. Below is a simple monitor script in Python.

start editor nano and create monitor.py
<pre>nano monitor.py</pre>

Copy and paste the script below into that file and save it.
After you saved the file, you have to make the file executable:
<pre>chmod 755 monitor.py</pre>

Copy the content of this script to moniotr.py
<pre>#! /usr/bin/python
# -*- coding: utf-8 -*-
import socket

# IP address and port to connect to the gateway, please attapt to your environment
default_gateway_host = "192.168.60.201"
default_gateway_port = 20000

gateway_addr_port = default_gateway_host, default_gateway_port

def monitor():
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
sock.connect(gateway_addr_port)
data = sock.recv(1024)
# expect ACK from gateway
if data != "*#*1##":
raise Exception("Did not receive expected ACK, but: "+data)
# Switch session to MONITOR mode
sock.send("*99*1##")
data = ""
while 1:
# Read data from MyHome(R) BUS
next = sock.recv(1024)
if next == "":
break # EOF
data = data + next
eom = data.find("##")
if eom < 0:
continue; # Not a complete message, need more
if data[0] != "*":
raise Exception("Message does not start with '*': "+data)
print data
msg = data[1:eom]
data = data[eom+2:]
finally:
sock.close()

monitor()</pre>

Now start the monitor and watch the messages fly by. Exit with CTRL-C.
<pre>./monitor.py</pre>

← Older revision		Revision as of 10:56, 16 November 2014
Line 1:		Line 1:
−	To understand the OWN messages better, you should start a monitor session on your Raspberry Pi and watch the OWN messages flying in from your domotic system. Analyzing these messages gives you an idea how it works. Below is a simple monitor script in Python.

−	~~start editor nano and create monitor.py~~
−	~~<pre>nano monitor.py</pre>~~
−
−	~~Copy and paste the script below into that file and save it.~~
−	~~After you saved the file, you have to make the file executable:~~
−	~~<pre>chmod 755 monitor.py</pre>~~
−
−	~~Copy the content of this script to moniotr.py~~
−	~~<pre>#! /usr/bin/python~~
−	~~# -- coding: utf-8 --~~
−	~~import socket~~
−
−	~~# IP address and port to connect to the gateway, please attapt to your environment~~
−	~~default_gateway_host = "192.168.60.201"~~
−	~~default_gateway_port = 20000~~
−
−	~~gateway_addr_port = default_gateway_host, default_gateway_port~~
−
−	~~def monitor():~~
−	~~sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)~~
−	~~try:~~
−	~~sock.connect(gateway_addr_port)~~
−	~~data = sock.recv(1024)~~
−	~~# expect ACK from gateway~~
−	~~if data != "#1##":~~
−	~~raise Exception("Did not receive expected ACK, but: "+data)~~
−	~~# Switch session to MONITOR mode~~
−	~~sock.send("991##")~~
−	~~data = ""~~
−	~~while 1:~~
−	~~# Read data from MyHome(R) BUS~~
−	~~next = sock.recv(1024)~~
−	~~if next == "":~~
−	~~break # EOF~~
−	~~data = data + next~~
−	~~eom = data.find("##")~~
−	~~if eom < 0:~~
−	~~continue; # Not a complete message, need more~~
−	~~if data[0] != "*":~~
−	~~raise Exception("Message does not start with '*': "+data)~~
−	~~print data~~
−	~~msg = data[1:eom]~~
−	~~data = data[eom+2:]~~
−	~~finally:~~
−	~~sock.close()~~
−
−	~~monitor()</pre>~~
−
−	~~Now start the monitor and watch the messages fly by. Exit with CTRL-C.~~
−	~~<pre>./monitor.py</pre>~~

← Older revision		Revision as of 10:37, 16 November 2014
Line 1:		Line 1:
−	~~== A Monitor Session with Python ==~~
	To understand the OWN messages better, you should start a monitor session on your Raspberry Pi and watch the OWN messages flying in from your domotic system. Analyzing these messages gives you an idea how it works. Below is a simple monitor script in Python.		To understand the OWN messages better, you should start a monitor session on your Raspberry Pi and watch the OWN messages flying in from your domotic system. Analyzing these messages gives you an idea how it works. Below is a simple monitor script in Python.