I filmed timelapse footage before using my CANON A480 compact camera, which was made very easy using CHDK (the canon hack and development kit) firmware hack. How ever I really wanted the footage to be of higher quality so I wanted to use my Nikon D40.
Most low end DSLR's like mine, have an Infrared remote as the sole external trigger. Other cameras may have pre-made wired intervalometers onsale, but these cost hundreds of dollars. Yet the majority of them have IR remote cabability. This means you can buy a cheap knock off, of your camera's remote and HACK 'IT' UP.
Step 1: Get The Parts
- An IR remote for your make of camera. (this is Crucial for sucess)
- An arduino of any type, however the nano is a good size.
- A single 2N3904 NPN transistor, yet any comparable NPN will do
- One 10K resistor.
- PP3 9V battery *
- PP3 battery clip *
- A nice project box or enclosure
- Metal toggle switch
- L-ion battery pack *
Step 2: Disassemble The Remote
- Remove the battery by removing the battery compartment
- Use a small flathead screwdriver or knife to carefully lift the front cover / sticker
- Peal back the cover whilst holding the circuit board in place
- Use a philips screwdriver to take out the 3 screws that hold the circuit board in place
- Lightly pull the circuitboard back to remove it from the case
- Admire your handy work.