GoSpectro vs DisparaTimer

Spectroscopy is a powerful tool that allows to analyze matter from the spectral component of light. So far, it has been restricted to professionals, considering the cost, the size and complexity of the equipment. Today, GoSpectro puts the power of spectroscopy in the hands of everyone, offering the world’s most compact and most simple light spectrometers. This application, combined with the GoSpectro accessory, allows to turn any smartphone into a light spectrometer in order to measure, record, analyze and export spectral data. It is the ideal companion for students, professionals or anyone who needs to measure a light spectrum on the go. This enables to perform material characterization and analysis with an ultra-compact device natively connected to the internet, with applications in gemology (gem identification), food industry (color measurement, allergen detection), water quality (pollution detection), academia/teaching, anti-counterfeiting, art, etc.

DisparaTimer is a mobile app that, when connected to a Raspberry Pico W/WH, can control the exposure time of a photographic enlarger using a power relay. The physical setup is inexpensive and easy to assemble. DisparaTimer has two operation modes. The first is a traditional timer mode, where you set a specific time for each exposure. The second is designed for creating test strips with constant fractional step increments over a base time. On iPad (iPadOS 17 and later), DisparaTimer includes a landscape-only notes panel that lets you add photos or images of your test strips and make handwritten or visual annotations directly on them.