DIY Microsoft Teams presence led
Jul 3, 2020
Since the outbreak of the Coronavirus (COVID-19) I’ve been working from home. I have a little daughter (age 5) who also had to stay home from school, so more than once I had the same situation as Professor Robert Kelly during a BBC interview: Since I recently bought and build a 3D printer (Prusa i3 MK3S) and watched Scott Hanselman change his lights during his talk on Microsoft Build 2020, I put 1 and 1 together and decided to try and create something for myself/daughter.
Getting started with MySensors
Nov 25, 2016
For a long time I have been following the website/project MySensors.org. I’ve been thinking about building a temperature and humidity sensor-network in my house for a long time and this project seems to have figured out all the hard stuff (radio communication, low-power battery sensors, network gateway and even controllers).
The Getting Started guide on MySensors.org is a really great starting point to read about the MySensors project and see what it can do.
Reverse engineering remote Itho CVE ECO RFT – Part 6
May 19, 2015
Finally I’ve made a huge step forward in actually controlling the Itho ventilation box from my arduino, using a CC1150 RF-transmitter. This wouldn’t have been possible without Sander letting me swap my Itho remote control for his remote control, so thanks Sander!
If you are not interested in how I got this working, but want to see it working for yourself, head straight on over to my GitHub repository and download the code: https://github.
Reverse engineering remote Itho CVE ECO RFT – Part 5
Feb 18, 2015
Two steps forward and one step back (almost like the song). That’s what my progress with reverse engineering the Itho RFT remote feels like. I’ve made some good progress in sending out the RF signal, but the ventilation box isn’t responding. The signal is more complex than I expected.
The first big step forward, since my last blog post was made because I (finally) received the CC1150 board I ordered on eBay.
Reverse engineering remote Itho CVE ECO RFT – Part 4
Feb 5, 2015
Reading back my previous blogpost I noticed that it has been a month since my last post! This doesn’t mean the project has stopped or that I’ve lost interest, it just means there is a lot happening in my life and it’s hard for me to find some spare time to do the work needed to advance this project.
I ended my previous post (part 3) with “let’s write some code”.
Reverse engineering remote Itho CVE ECO RFT – Part 3
Jan 4, 2015
Now that I have saved the data from the logical analyzer, it’s time to do the actually analysis. The analyzer software helped me interpret the SPI protocol into hexadecimal values (so I didn’t have to count each bit individually). But still there is a lot of communication between the ATMEL microprocessor and the CC1150 chip to changes the speed of the Itho ventilationbox.
The first thing I noticed was that when you press a button once, 3 identical messages are transmitted using the CC1150.
Reverse engineering remote Itho CVE ECO RFT - Part 2
Dec 30, 2014
After a few weeks my eBay-order (with the logical analyzer) arrived and I could finally start with probing the signals between the Atmel and CC1150 on the RFT remote for the Itho ventilation-box. The first challenge I faced was connecting the probes to the right traces on the small RFT board. These traces are so small and the pins of the chips are so tiny that’s it’s impossible to attach the probes directly.
Reverse engineering remote Itho CVE ECO RFT - Part 1
Dec 29, 2014
I have recently installed a new centrale-ventilation-box in my home, an Itho CVE ECO RFT. This ventilation box uses a lot less power (<2 watts at low speed) and most importantly makes a lot less noice. In my first post on this blog Home Automation getting started I said that controlling the ventilation-box from my home-automation system was one of my wishes, so lets get started!
The ventilation-box can be controlled using a RF remote controle with 4 buttons.
Installing OS on Cubietruck and SSD
Apr 27, 2014
Based on Robert Hekkers experience with installing the Cubieboard3, I downloaded the latest Lubuntu server OS v1.02 image: http://docs.cubieboard.org/tutorials/a20-cubietruck_lubuntu_server_releases
I downloaded and installed the latest Phoenix Suite v1.06 for Windows using this download: http://docs.cubieboard.org/tutorials/common/livesuit_installation_guide After starting the Phoenix Suite, I was asked if I wanted to install the upgrade to v1.08. I clicked “yes”. (btw, DON’T install this software on a VM-ware virtual machine, I couldn’t get a stable connection to the Cubieboard3 and as a result the flashing would not start)
Apr 27, 2014
In the blog of Robert Hekkers he writes he started out using a PC running a single monolithic app developed in Delphi. He recently completed porting all his software from a PC to an ARM-based-board named Cubieboard3 (aka Cubietruck). In my house there is a PC running 24/7 as a NAS, but I would like to keep things separate so I’m also going to use a Cubieboard.
Robert Hekkers also switched his programming language from Delphi to Node.