Controlling the shutter of a camera remotely has several uses. The most important â€“ catching a photo at exactly the right time. Many top of the line digital cameras come with remotes. But what if you wanted to build one for your average digital camera? This Arduino powered remote camera trigger hack is the one to follow. In the project, he uses an Arduino, a cheap laser pointer, a photoresistor and a Canon Powershot.
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Tying all these together is the CHDK (Canon Hacker’s Development Kit). Itâ€™s an open source firmware enhancing program that juices up a plain old point and shoot into a power camera.
The laser bounces off a mirror to a photoresistor mounted on the Arduino which also is the switch power source. The laser â€“> mirror -> photoreceptor combine acts as the sensor. When the beam is broken, the Arduino picks up the analog signal from the photoresistor and triggers the camera shutter. The wiki has a detailed page on triggering your setup remotely using a USB cable too. Look into more project details project and some of our own select camera projects: