The PySpectrometer allows users to measure homemade dye lasers’ wavelength and perform spectroscopy on the cheap.
Les Wright developed PySpectrometer, a Python (OpenCV and Tkinter) implementation of an optical spectrometer. The device enables users to measure the wavelength of homemade dye lasers and perform spectroscopy at an affordable cost.
![](https://hackster.imgix.net/uploads/attachments/1340012/spectometer_JYSYtllXgZ.png?auto=compress%2Cformat&w=830&h=466.875&fit=min&dpr=1)
Am I missing something or does the program have to be calibrated every time it is used.