10002 Short assembly run

Brief progress It is quite clear that my smart home project is going quite slow. It is not that I spent a lot a time on it, but that I have been pretty busy with other life things. But it is moving again now. Motion sensors assembly Once I settled on the type of motion sensor and case, I designed some sensor PCBs . I made a small assembly run of eight sensors just to… Continue reading

Vorpal hexapod

I wanted to have a hexapod robot for a long while now. It just never seemed to be that much of a priority to spend the time or money to build one. Luckily this changed when I found Vorpal. They are selling complete kits or you can build one yourself from the plans that are provided. I was missing only a few servos and the 3D printed pieces, so I quickly decided to build one.… Continue reading

10002 Motion sensors?

Motion sensor madness Picking the right one is not trivial. From left to right – Osram Nightlux, Ikea Molgan, Ebay sensors with sensitivity and timing adjusment (BISS001), smaller ebay sensor with no adjustment, another ebay sensor. As you can see I have looked at 2 different options: use a ready made sensor and fit it with a radio, or build my own. Ikea Molgan I hacked one a while ago – was my biggest preference. It… Continue reading

10002 Temperature sensors?

Intro There is no doubt, that integrated temperature and humidity sensors are the way to go at the moment. I had quite a bit of look at a wide range of sensors and settled for the SI7021. Silabs has a bigger family – most likely the same chip binned on precision – so here are cheaper options to use if I ever want to go for an application that can do with less precision.  Here is a… Continue reading

10002 Architecture and Software

This article is part of my 1000² Smart Home project. Check out the Architecture and Software and then move on to Hardware. An most importantly, check the Lessons learned and why I did what I did. There are already some first results, connecting all parts of the system. Starting with a top down approach – what the system should do, it soon became clear that some devices will be custom and some will be off the shelf. Determining… Continue reading

10002 Hardware

This article is part of my 1000² Smart Home project. Check out the Architecture and Software and then move on to Hardware. An most importantly, check the Lessons learned and why I did what I did. There are already some first results, connecting all parts of the system. Some history A picture says 1000 words!* *inner voice dependent Which microcontroller? When I began this project, I was long given up on the ATMega and ATTtiny micro, with some… Continue reading

10002 Lessons learned

This article is part of my 1000² Smart Home project. Check out the Architecture and Software and then move on to Hardware. An most importantly, check the Lessons learned and why I did what I did. There are already some first results, connecting all parts of the system. What? This page covers things I have learned and why I did what I did in my 1000² project. Some experience, random calculations, opinions and thoughts. Battery philosophy So what… Continue reading

10002 Smart Home

This article is part of my 1000² Smart Home project. Check out the Architecture and Software and then move on to Hardware. An most importantly, check the Lessons learned and why I did what I did. There are already some first results, connecting all parts of the system. Intro I have enjoyed building small home automation devices for many years, simple things that make life better or just cater for the lazy animal. The world has been dreaming… Continue reading

Cheap China

My experiences and recommendations for cheap electronic modules from China. Continue reading