STS Developers Kit


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The STS Developers Kit combines the powerful STS spectrometer, a Raspberry Pi microcomputer, customizable software and wireless capabilities into a single package for integrating spectral sensing quickly and easily. With minimal development time, the kit can be configured for a variety of laboratory, process monitoring and environmental applications. Uses include developing handheld devices for light metrology or color measurement, creating cloud-connected measurement clusters, and even mounting instruments on UAVs for remote monitoring.

The STS Developers Kit offers the choice of three STS models STS-UV (190-650 nm), STS-Vis (350-800 nm) and STS-NIR (650-1100 nm).

The STS Developers Kit takes advantage of the Raspberry Pi’s flexibility and adaptability to enable new uses for spectroscopy. Once connected to a WiFi network, the ultra-compact STS spectrometer can be controlled through phone, tablet or computer web browser. The WiFi range is up to 150 m, and all data is securely stored to the onboard SD card. The kit is ready to use out of the box, but can be easily customized for specific projects.

  • Spectral sensing platform – simple tools for integrating spectroscopy into your system
  • Raspberry Pi microcomputer – Linux-powered, programmable microprocessor
  • Power microspectrometer – ultra-compact STS spectrometer for UV, Vis and NIR wavelengths
  • Wi-Fi connection – control spectrometer through phone, tablet or computer web browser

Engineering Specifications STS Developers Kit
Dimensions (spectrometer): 40 mm x 42 mmx 24 mm
Weight (spectrometer): ~ 60 g
Weight (complete kit and cables): 190 g
Wi-Fi range: Up to 150 m (2.4 gHz frequencies)
Wi-Fi dongle: USB plug-in
Power draw: ~1A with Wi-Fi
Battery: Lithium ion, 3000 mAh (~3.0 hours wireless endurance)
Raspberry Pi interface: Wi-Fi, USB, Ethernet, Bluetooth
SD card: 8 GB
Wavelength range: 190-650 nm (UV), 350-800 nm (Vis) and 650-1100 nm (NIR)
Optical resolution: 1.5 nm FWHM w/25 µm slit
Signal to Noise: >1500:1
Dynamic range: 5 x 109 (system, with 10 s maximum integration); 4600:1 single acquisition
Integration time: 10 µs to 10 s
Connector: SMA 905

Applications in which this product is used:

Measurement Techniques in which this product is used:

If for some reason your SD card becomes corrupted and you wish to reflash it back to its shipping condition, you can do so with Linux dd and the following image:

STS Spectrometer Takes Flight on UAV


The relative response of STS model spectrometers shows the relationship between grating efficiency and wavelength range. Our setups used each spectrometer with a deuterium-tungsten halogen source and 600 µm SR fiber. The data was taken in Scope Mode (raw data) and normalized.