DisparaTimer

100+
Downloads
Content rating
Everyone
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About this app

DisparaTimer is an app capable of controlling the exposure of a photo enlarger using a Raspberry Pico W/WH and a power relay. The physical installation is cheap and easy, check please https://www.disparafilm.com/disparatimer-en website for additional information and multimedia resources.

DisparaTimer has two operational modes, "TIMER" and "STRIP". The first one is the traditional timer mode, where you set a time to be used during exposure. The second one is to perform test strips with constant increments of fraction of f-stop over a base time.

An Android 8 device is needed, even Android 9 or higher is recommended. Aspect is optimum with screens of size between 5 and 10 inches and a minimum resolution of 1280x720. In case of bad aspect, modify the screen zoom within the phone or tablet settings to improve it.
Updated on
Dec 8, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new

"Strip" mode modified to generate steps with more and less time from the base time and in the selected stops. Now only odd number of strips can be selected (3, 5, 7 or 9) and the base time for the test strip can be changed only in the "Timer" mode.