Thomas Laubrock poggenpower

Viessmann to MQTT forwarding

The files below is part of a larger framework and won't really run indpendent from it, but should be easy to convert into a standalone version.

External modules

Two external modules are requirend

https://github.com/somm15/PyViCare for talking Viessmannn API
https://github.com/poggenpower/mqtt_tree for wrapping MQTT communication (requires paho.mqtt.client) install via pip install git+https://github.com/poggenpower/mqtt_tree

DUID reset and conversion

Using DHCPv6 in ipv6 you don't assign setting per MAC but per DUID. On many linux flavours you will find the DUID in the firtst line of /var/lib/dhcp/dhclient6.XXXX.leases as default-duid where XXXX is the name of the interface. e.g. default-duid "\000\001\000\001'\305H\356\016\265<\373[\372"; a string with octal escaped bytes if it is not a printable ACSI charakter.

converting the DUID

Almost all DHCPv6 servers expect the DUID in hex notation. Following python3 script will convert it:

duid = "\000\001\000\001'\305H\356\016\265&lt;\373[\372"

	.aqua-token
	payload*
	post*
	data*

	import re
	from PyViCare.PyViCare import PyViCare

	# make sure call back URL in the Oauth client is set to: vicare://oauth-callback/everest
	client_id = "42cfdf4e473fd436*************"
	email = "[email protected]"
	password = "********************"

	vicare = PyViCare()
	vicare.initWithCredentials(email, password, client_id, "token.save")