Still integrating Remeha Calenta into my Domotica system

Remeha Calenta

Remeha Calenta

It has been a while ago since i worked on this project. After the new central heating had been installed in the first week of april, i spent time to get the combination of Remeha Calenta, Remeha Gateway and Remeha Celcia 20 to work. I failed…

Somewhere there is an unstable factor in this combination that makes these 3 devices not work together as they should, and as was stated that they could by a Remeha technician. So i put this project on hold for a while. But now that holidays have started, and the days will get shorter in a matter of weeks, i would like to have this project finished by the time  we need the central heating again…

Last week i talked to the  person who installed the Calenta and he asked me to write down all my problems in an email that he would forward to Remeha Technical Services department, to see if it was possible to have a Remeha technician coming over to my house to investigate the problems i am having.

After integrating lights, appliances, garage doors, alarm systems, TV, Home theatre, music, the largest piece of equipment that is not yet integrated is the central heating. That has to change… one way or the other! 🙂

All kinds of things are made possible these days in this area, just look at the Danfoss Z-Wave controlled radiator thermostats for example. It’s a sign you can’t ignore. So i hope Remeha has a clue of what is going on in terms of Domotica & HVAC; and i hope they inderstand that the systems they produce can no longer be isolated from the rest; it’s time to connect!

Homeseer Plugin for Alphatronics Visonic Receiver

As i mentioned in my previous post, i developed a Homeseer Plugin for the Alphatronics Wireless Interface. This is the second Plugin i have developed for Homeseer, so the time to get the Plugin working was shorter then the first time. I know a bit more about Homeseer, getting to know the methods to call, etc. etc. With this Plugin most of the time was spent on the configuration pages; this time i made ASP.NET (.aspx) pages instead of doing it the hard way, i.e. embedding them into the Plugin itself.

Here some screenshots of the plugin:

Alphatronics Ethernet Interface SettingsAlphatronics Serial Interface Settings

The Plugin supports Serial connection type as well as Ethernet. Reason for this is that i have to be able to support the Plugin, but i have my interface connected to Ethernet by means of a Serial device server, the Sollae EZL-400S. This device is located at my fuse cabinet, where a ACT TI213, PLCBUS PLC1141 and this interface are connected to it. I have 1 RS232 port available.. but not for long i think 🙂

The screenshot below shows the sensor configuration page:

Visonic Sensor Configuration

Visonic Sensor Configuration

Depending on what the sensor is used for, you can change the text that will be shown on the HS Status page when a sensor is in Alert status or not:

Homeseer Status page

Homeseer Status page

Alphatronics Interface for Visonic sensors

Some time ago i received a new interface i had never heard of or had seen before, made by Alphatronics. It’s called a Wireless PC Interface and it can be used for receiving 868 MHz Visonic Powercode and CodeSecure transmissions. With this interface i can receive all my Visonic sensor i have, Keyfobs are received very good as well.

Here’s what the Interface looks like:

Some details:

Connection : RS-232, 9600,8,N,1.
Number of sensors supported : unlimited
Power supply : 12V DC
LED indicators : COM and Power

A very nice feature of this interface is that every received packet comes with information about the signal level, so you know exactly how good (or not) a specific sensor is being received. I’ve made some charts of these signal levels here. As you can see in the charts, some sensors are always received very good like the front door, others sometimes show strange ‘dips’.

Another very positive thing is that this interface receives Visonic keyfobs very well. From the day i started using this interface i have an event active that is triggered by the aux button on my Visonic keyfob that will open/close the garage door for me. It works perfectly.
I got the interface from Waakzaam Wonen (, so if you’re interested i would suggest to contact them for more information.
I’ve also developed a HS Plugin for this interface. Pieter Knuvers and i have been testing this plugin thoroughly and i’m planning to release the Plugin in the next few days. Hopefully this will result in valuable input for more functionality to be added to the plugin. If anyone is  interested just leave a comment.
Update 22-07-2009: Waakzaam Wonen has made the interface available in their webshop