Trick 17

With last month’s experiment I found out that my DSLR does not stick to the advertised 30 frames per second. So I had to investigate this quite a little bit further.

In order to determine what is going on I implemented a flexible sweep generator. Although the experiment seems to require a frequency counter it does not. The point is that the desired frequency is set through the serial interface, thus anyone with an Arduino and a bunch of LEDs can verify the outcome.

The implementation exhibits some cool features that are interesting in other contexts as well. These are:

I am pretty sure that my TRICK17 macro will give rise to some pointed comments 😉
And I am also sure that my parser will serve as a nice template for others 🙂

Parser State Engine

Read the page for some surprises.

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