This app is an Android app used for collecting data from Ocean Optics USB2000 spectrometers. The user can send parameters to a raspberry pi connected to the spectrometer, collect a dark and reference plot, pinch and zoom on the plot, and save the plot. The companion app is the Spectral Data Collector that runs on the raspberry pi as a server.
Here is a user manual of the application that details compiling, installing, and using the application: User Manual
