This hack was built for [Hlesliebole]’s Nikon D3100, but he says it should work with any DSLR and remote shutter. This initial build uses an LED as a stand-in for the remote shutter that he ordered.

It’s built using a ton of switches and LEDs, powered by an Arduino and a bunch of USB controllers. As absurd and complex as it is, it’s still surprisingly functional.

Within this, TCCR1A and B are the timer control register. The least-significant three bits of B an turn off the timer if that are set to 000. In the mode set, the counter counts from zero to the ...

The Arduino enumerates as /dev/ttyACM0 or perhaps some other number depending on what else is connected. The program would find ports that show up as /dev/ttyUSB* and /dev/ttyS* but didn’t want ...