TV_flow_1

You watch too much TV

I have the feeling that my teenager son spends too much time in front of the TV. We have a house rule that he is allowed to watch TV only after all homework is done, room is tidied up and for no more than couple hours a day. Of course, this rule is hard to control unless time spent…

ustream

Live streaming to USTREAM.TV using Raspberry Pi

The Raspberry Pi nest camera project turned out interesting, but provides static images upon motion detection. I’d rather have a live view of the bird’s nest and decided to go for live ustream.tv streaming.  Setting up the software for it is pretty straight forward using these instructions, only I use a RaspiCam instead of USB…

First images..

House martin cam

A common house martins couple started building their nest in an unfinished tool shack at the far end of my yard few days ago. I still don’t have a door or window on that building, so they can enter and leave freely. My kids are curious and keep peeking into the shack, sometimes scaring the little birds…

multinode-rfm2pi

NodeRED RFM2Pi to emonCMS gateway

I created a Node-RED RFM2Pi gateway few weeks ago, have it running nicely since then. I decided to use that approach instead of a python script, since it is very flexible, visual and easy to extend. Prior to Node-RED I used the great OEM gateway script by Jérôme Lafréchoux. My inspiration to switch to Node-RED were Nathan…

LDR and NE2 inserted in the tube. NE2's legs protected with shrink tube

Detecting AC

I sometimes have home automation projects that require detecting AC voltage (on/off only), previously have experimented with non-contact AC detection. Here is another approach that may be more suitable for low-power AC detection node: using a NE2 neon lamp and an LDR     The bulb will reduce LDR’s resistance and the circuit will read…

Funky v3 and YAPM projects

Funky v3 and YAPM project files now on github

I have published the Eagle design files for the Funky v3 and YAPM projects here and here respectively for anyone interested to try them out. A quick re-cap – Funky v3 is a miniature low power battery operated Arduino Leonardo with radio module, and the YAPM is a cheap power monitor project. The Funky v3…