I got this idea for a while but I never had the chance to try it out. Friday, a workmate gave me a LCD shield for Arduino and I thought that was the right time to build a clock that comunicate the time through QR-codes. Of course, it's extremely useless (as most of the clocks nowadays).

In the video below you can see the clock booting up and loading 3 different qr-codes (3 minutes)

As all my ideas, it is first sketched on my blog and, as soon as I got time, is realized and published here.
So, if you want to have an insight on my future project have a look at genteautoreggente.com

Step 1: The hardware

In order to build a QR-clock you need: Actually you can substitute my LCD shield with wathever LCD shield you have. You will need to adapt the code using the libraries of your shield. 
Interesting project!, <br>You know how to generate QR pattern through arduino script?
Although you state it's useless, it is great for other applications.<br>I like it!
Any idea?
Advertisement or information that changes on a regular basis, like the weather forecast (when there is limited space). <br>
Nice idea, you can use some space ON the qr-code to render a meteo icon (http://hackaday.com/2011/08/11/how-to-put-your-logo-in-a-qr-code/).<br><br>Another nice thing you can do is to preload the images into an sd card so that you can disconnect from the computer.
Great idea.
Thanks! great nickname :)

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