Show HN: I turned my iPhone and a $20 smart plug into an f-stop timer

By pentakkusu · 2026-10-06 · 3 points · 0 comments

I am a film photographer and do some darkroom printing and always wanted one of the proper, advanced f-stop timers, but never really wanted to spend a couple hundred dollars on one. Eventually I figured my phone was already perfectly capable of doing the timing, it just needed a…

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