Specy – an autonomous spectroscopy system

Specy is a small and simple spectroscopy system that relies on the Ocean Optics STS spectrometer module and Arduino based open source hardware.


The system is small, lightweight and consumes a minimum of energy. Further it is fully autonomous and basically will consequently measure hyperspectral data to SD card once it´s activated. Within this project the assembly of the different commercially available components is described. Second we provide an Arduino firmware that enables the communication to the spectrometer and handles the data storage.

The firmware of Specy is easy to understand and written in Arduino which allows to freely adapt the base code to specific needs. Adaptations of Specy have been used on UAVs, Tractors, in various lab application and as field instrument.

The source code of specy is hosted at GitHub and licensed under the 3-Clause-BSD License.



  • Institute of Bio- and Geosciences (IBG)
  • Plant Sciences (IBG-2)
Building 06.2 /
Room 406b
+49 2461/61-2638

Selected Publications

Burkart.A; Aasen, H. ; Alonso, L. ; Menz, G. ; Bareth, G. ; Rascher, U.
Angular Dependency of Hyperspectral Measurements over Wheat Characterized by a Novel UAV Based Goniometer
Remote sensing 7(1), 725 - 746 (2015) [10.3390/rs70100725]

Burkart, A. ; Cogliati, S. ; Schickling, A. ; Rascher, U.
A Novel UAV-Based Ultra-Light Weight Spectrometer for Field Spectroscopy IEEE sensors journal 14(1), 62 - 67 (2014) [10.1109/JSEN.2013.2279720]

Burkart, A. ; Schickling, A. ; Mateo, M. P. C. ; Wrobel, T. J. ; Rossini, M. ; Cogliati, S. ; Julitta, T. ; Rascher, U.
A Method for Uncertainty Assessment of Passive Sun-Induced Chlorophyll Fluorescence Retrieval Using an Infrared Reference Light IEEE sensors journal 15(8), 4603 - 4611 (2015) [10.1109/JSEN.2015.2422894]

von Bueren, S. K. ; Burkart, A. ; Hueni, A. ; Rascher, U. ; Tuohy, M. P. ; Yule, I. J.
Deploying four optical UAV-based sensors over grassland: challenges and limitations Bioeosciences 12(1), 163 - 175 (2015) [10.5194/bg-12-163-2015]

Last Modified: 05.01.2023