DarkPlug

A photographer has built a DIY f-stop timer for the darkroom using an iPhone and a $20 smart plug, with instructions published on a personal website. The hack replaces dedicated darkroom timers with cheap consumer hardware, and it is being discussed on Hacker News, where commenters are weighing in on the practicality of the setup.

Developer Peter Szentkiralyi has shared a home-built darkroom timer that pairs an iPhone with a cheap smart plug to control photographic enlarger exposures in f-stop increments. The project, presented on Hacker News, shows how off-the-shelf hardware can replace dedicated darkroom timers, and hobbyist photographers interested in analog printing are weighing in on the simple, low-cost approach.

A developer has shared a project that turns an iPhone and a $20 smart plug into an f-stop timer for photographic darkroom printing. The setup, described on the project's website, uses the phone to control exposure timing through the smart plug, replacing dedicated darkroom equipment with cheap consumer hardware. It is being discussed on Hacker News under the Show HN format, where makers share self-built projects for feedback and interest.