Raspberry spegg © NIR22 with aluminum case

For industrial applications the reproducibility of spectral measurements and sturdiness and durability of the measuring device is crucial. For reproducibility of spectral measurements between different devices and within the lifetime of the spectrometer, the slit and the position of the grating, the mirror and the detector must be the same. Only this way spectral evaluations, e.g. for the determination of certain analyte concentrations, can be transferred to equivalent spectrometers.

The raspberry spegg fulfills these requirements. Because of the monolithic setup the optical path is grounded over the entire lifetime. Each spectrometer is calibrated after production and does not need to be recalibrated. This manufacturing process ensures that the spectra of all raspberry spegg’s are comparable to each other. For each raspberry spegg, the calibration data is stored.

The electronic components of the raspberry spegg, including the integrated Xenon lamp, also meet these requirements. E.g. no electrolytic capacitors with liquid electrolytes are used. The light source has its own electronically adjustable voltage source.

The electronics and the spectrometer of the raspberry spegg are adjusted robustly and space-saving to the raspberry pi.

Only four GPIO’s (pin 4,6,8 and 10) are used for power supply and communication. All other GPIO’s as well as the CSI Camera cable can be used with the raspberry spegg board.

The raspberry spegg has a voltage supply connection with a polyfuse, which can also be used to supply the raspberry pi.

The used case is a modifed protective shell from FLIRC.

For more pictures click here. For more information here.

Raspberry spegg © NIR22

Art.No.: LINIR2206

EAN: 791732154696

delivery contents:

spegg © NIR22

8GBit SD card incl. demo Software in Python

Raspberry pi 3

Raspberry pi international power supply

modifed FLIRC protective shell


Spectral Range

900 – 1700 nm (850 – 1800 nm accessible)

Spectral Resolution

< 16 nmFWHM / 8,2 nmPixel


> 100*1012 cts*nm / Ws

Signal to Noise Ratio

> 5.000


16 bit; UART; Raspberry pi 2, 3 GIPO Pin 4, 6, 8 and 10


Ø 300 / 330 µm; NA= 0,22

Fiber and Light source connector

F-SMA 905

Fiber length incl. connector


Storage Temperature

– 40°C to +60°C

Operating Temperature

0°C to +40°C

Dimension incl. Fiber 19mm x 56mm x 87mm (with Raspberry pi 3)

17mm x 56mm x 66mm (without Raspberry pi 3)

Weight (with Raspberry pi 3)

153g (with Touchscreen)

88g (without Touchscreen)