Kinetic Watch Charger

When Carrie and I got married, she gave me a very nice watch as a wedding present. It’s a kinetic watch (i.e. it is wound up by movement). I haven’t used it since the band broke a long time ago. Finally got the band fixed, but since it hasn’t been used, it’s not wound up at all right now. I can either wear a watch that’s one right twice per day for a while until it’s wound up, or I could put the continuous rotation servo I got a while ago to good use. ...

May 2, 2015 · 1 min · Michael Locatelli

Fixing Inoperative Rear Vent in Honda Pilot

Haven’t had much time for any projects over the last year or so. Having a new baby in the house tends to do that. Now that she is a little older and on a good schedule, I might be able to get a little time to work on some projects. My wife drives a 2005 Honda Pilot. Recently, we discovered that the rear vents for the second row of seats were not blowing any air. Of course, this makes the kids uncomfortable and Kimberly kept complaining that her back was sweaty. I hadn’t really looked into it too much so Carrie did some searching and came across this blog. The short version is that the screen over the blower gets clogged with dust and a thermal fuse goes open circuit permanently. ...

April 12, 2015 · 4 min · Michael Locatelli

IR Remote Control for RasBMC Media Center

In my last posting, I turned a Raspberry Pi into a media center PC. One of the things I left undone before declaring the project a success was to set up some kind of hardware based remote control. I was only able to control the PC using the web interface or the XBMC app on Android and the iPad. I originally wanted to build some kind of remote control that didn’t require me to have my phone next to me and unlock the screen every time I wanted to pause the show. I really don’t need another remote control in the living room. I already have one for the TV, one for the Blue Ray, and one for U-Verse. Fortunately, the U-Verse remote is actually a 4-in-1 universal remote. A quick Google found the manual, so I programmed one of the slots with a Sony DVD player code. It had enough of the buttons defined to be usable. ...

January 12, 2014 · 2 min · Michael Locatelli

Raspberry Pi Set Top Box

For a while now, I’ve been using DLNA to push video to my TV from my computer. The biggest problem I’ve had with that is that is my Sony TV is very picky about the video format. I’ve been stuck experimenting with options to pass to ffmpeg to convert the video from whatever format the file is in and the format that the TV likes, MPEG2. Among the many problems include poor resolution, out of sync audio, and no audio at all. I had been using MiniDLNA on my Debian box as the server for the content. It’s pretty simplistic. It’s little more than a file server that implements the DLNA protocol. I found another DLNA server, Serviio, that will do some conversion on the fly. This worked better. No need to convert video formats or worry if the TV would not even see the file. The biggest problem occurs whenever I pause a video. When I resume, the TV thinks the DLNA server has gone away. So basically, no pause, fast forward, or rewind. I’d consider that a show stopper. Several times, I have resorted to connecting my laptop to the TV using HDMI and playing the videos that way. ...

December 8, 2013 · 3 min · Michael Locatelli

Turning the Volume Down

I finally started a blog. I’m going to chronicle my exploration of amateur (ham) radio and electronics. So, let’s get to the first post. For the first post, I decided to go after something simple. My daughter has an Elmo guitar, the volume of which is, shall we say, earsplitting. I’ve been threatening to wire a potentiometer into the thing so it isn’t so loud. (for those that don’t know, a potentiometer resists the flow of electricity and has a knob to change the amount of resistance). ...

November 11, 2013 · 2 min · Michael Locatelli