Episode 45

#spectroscope
#spectrometer
#raspberrypi

Code at the end of the Description! Check out my other videos:    / leslaboratory​  
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In this video I demonstrate the latest and greatest software for the homemade Raspberry Pi Spectrometer with al new features! If you already have a Raspberry Pi, this useful tool can be built for under 100 bucks!

The new software features:

Accuracy has been significantly improved by implementing multiwavelength calibration and a Polynomial regression data fit to compute wavelengths as precisely as possible across the measured range.

Full screen spectrometer display! On Raspberry Pi systems, the interface is designed to fit 800 x 480 screens, which seem to be a common resolution for RPi LCD's, paving the way for the creation of a stand alone benchtop instrument. (for example the HyperPixel 4.0, etc)

Waterfall display from measuring spectra changes over time

This uses readily available components and easy to use Python software I have written specially for this application.

A commercial Diffraction grating Spectroscope https://www.patonhawksley.com/product...

Original PySectrometer:    • How to build a DIY Raspberry Pi Spect...  
Nitrogen Laser repair:    • Can it be repaired? Dumpster Nitrogen...  
Home made Dye Laser:    • DIY Tunable Dye Laser! (HD 60FPS ree...  
Ulbricht Sphere:    • Home Made Integrating or Ulbricht Sphere  

All code for this video and the bill of materials, as well as additional information is available at my GitHub.

https://github.com/leswright1977/PySp...

#raspberrypi
#optics
#laser

0:00 Intro
0:16 Hardware
1:41 Software Repo Github
2:33 New Features!
6:20 Where to buy parts
7:45 Quick test
9:30 New Software Demo!
9:49 Calibration
14:38 Waterfall mode
15:36 Test with a Dye Laser!
18:19 Self contained unit with screen!
19:16 Outro
19:26 Channel supporter credits