pChart-ing emoncms data

pChart is a neat PHP charting tool, I have been using prior to switching to emoncms. Emoncms has multigraphs available, that are much more interactive, but they are slow too. I also have had some issues with certain feeds that just won’t visualize and never got to the bottom of the problem. I missed my…

Emoncms data on my phone

I wanted to have quick access to certain measurements on my home monitoring system, most important the two hot water tanks (solar and heat pump) temperatures and room temperatures. I could, of course, have my laptop to check these, but not so convenient when I am on the go. I decided to have this on…

RFM12B to Raspberry Pi board

I have decided to discontinue the TinySensor project and focus on Funky Sensor as they overlap a lot as functionality. These of you following my posts, know that I have a working prototype for a dedicated board  for RFM12 to Pi connectivity, I later modified the TinySensor to include the 2×5 pin header so it could plug…

Micro IoT gateway

I have long wanted to make my own Internet of Things gateway and I wanted it small. I have researched for quite a while on the options, and finally decided to base it on the excellent work done by Simon Küppers back in 2008 with his micro Web Server. It is a true piece of art,…

Updating my SMS doorbell

I have made some updates to my SMS doorbell project. Previously, I had troubles setting up the email notifications in emoncms, the problem is that I don’t have shell access to the server where I host it so I could not install PEAR email. So I modified emoncms to use the in-built emailing rather than third…

Tiny Sensor plans

I have been working this weekend on improved version of the ATTiny84 remote sensor, this time I will use a PCB fab house to make at least 15 pcs of the PCB. The improvements over the old hand-made PCB are: CR2032 coin cell battery slot One Jeelabs compatible port for compatibility with Jeelab plugs. I…