Category Archives: Uncategorized

DCF77 vs. GPS

This month I setup ntpd on my Linux Box. The idea was to connect a GPS and my DCF77 clock as a backup. My naive assumption was that the GPS would outperform my DCF77 clock easily. However as it turned … Continue reading

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The dcf77 Library

Finally I separated my DCF77 decoder into a library. The dcf77 library will give your projects the same extraordinary noise resilence as the clock. It also comes with several examples. There is one issue with my library though. With Arduino … Continue reading

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DCF77 Next Steps

Since I published my advanced DCF77 clock I recieved quite some questions on what will be next. There are two things that I am after right now. I noticed that some people find it difficult to properly run my clock. … Continue reading

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Happy New Year 2014

For this new year I wanted to create a video at least as cool as last year’s VU meter experiment. (Check out the video!) However I did not manage to get this done. As it turned out some broken USB … Continue reading

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Debouncing

Lately I have seen several discussions on pin debouncing in the Arduino forum. This made me lookup some of the existing solutions. Although some of them are very sophisticated I found that none of them will be suitable for my … Continue reading

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All You Can Git

Lately some of my readers complained about troubles with downloading the code to my experiments. In order to fix this I introduced a dedicated download page. There I describe how to easily download any piece of code. What I actually … Continue reading

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Compatible or Not?

In the past I got some complaints that my Blinkenlight Shield is not 100% Arduino compatible. Of course it is 100% compatible to the “real” Arduino. The issue is that the Arduino family never defined what they assume to be … Continue reading

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Bigger is Better

This month I will not focus on improvements of the software side of my DCF77 project. Instead I focused on the hardware. That is I compared different receiver module and antena options. The catchy conclusion is “Bigger is Better”.

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The Real Thing

In December I started my DCF77 project by enhancing an existing DCF77 library with exponential filtering. In 2013 I then started “the real thing”. That is a DCF77 clock that applies advanced decoding techniques. This month I am very proud … Continue reading

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Keeping Time No Matter What

By now my DCF77 project can completely decode the official time signal under really bad conditions. Since bad means “really really bad” I also have to anticipate that there will be prolonged periods without any reasonable signal at all. Thus … Continue reading

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