Arduino Sonar Trigger Part 2

The idea this weekend was to setup the sonar with the Arduino so that I can get a shot of the Siriemas that pass daily at the farm, or maybe a hummingbird.

Well that didn't work out so well, turns out that the sonar is affected by the wind. Adding a bit of hysteresis to the code, fixed it for the most part.

I used lua to program the camera, except that it looks like there some issues with it and my Canon SD450.  Calling get_shooting() repeatedly causes problems, for example. I got my intervalometer code to work correctly only after removing that test.  Here's some timelapse photography that did work.

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