Show HN: I turned my iPhone and a $20 smart plug into an f-stop timer
6 hours ago
- Darkplug is a darkroom timer app for iPhone that controls an enlarger via a compatible smart plug on the local network.
- It features a red-on-black interface designed to be safe for use near photo paper and legible in low light.
- Workflows include straight prints, guided test strips (seconds or f-stop increments), complex dodge and burn planning with a grid system, split-grade printing, and a paper developing timer.
- Advanced features are unlocked through Darkplug+, a one-time in-app purchase (no subscription), including f-stop timing, guided test strips, dodge/burn plans, reusable plan codes (coming soon), split-grade timer, and paper developing timer.
- Setup requires a Shelly smart plug (e.g., Shelly Plus Plug S, Shelly Plug S Gen3) with a local IP address; the plug and iOS device must be on the same network.
- The app is developed by Péter Szentkirályi and available on the App Store; support via email at fill.cans82@icloud.com.