Make: Projects

Star Trails

Capture the movement of the stars with your camera.

Steps

Step #1:

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  • Fritzing schematic.
  • The system is powered by 12 volts. The transistor turns the relay on when pin 2 is set to HIGH.
  • This fires the IR remote control that triggers the DSLR.

Step #2:

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Star Trails
  • The Arduino code can't be more simple. Just decide the time between photos and put that time after the command that sets pin 2 LOW.
  • Remember that your DLSR must have time to take and process the photos. If you set your camera to a 10-second exposure you must have 25 to 200 seconds delay between exposures.

Step #3:

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  • Peel back the adhesive paper on top of the DLSR remote control and solder two wires to the two pads under the button.
  • Place the adhesive paper back in place.
  • Connect the two wires to the contacts of your relay.

Step #4:

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Star Trails

Finally, go to startrails.de or markus-ensweiler.de. There you can download the software which will merge your individual photos together and create star trail photos like this one.