Category Archives: spectrometer

Putting More Tech Into More Hands: The Robin Hoods of Hackaday Prize

Many different projects started with the same thought: “That’s really expensive… I wonder if I could build my own for less.” Success is rewarded with satisfaction on top of the money saved, but true hacker heroes share their work so that others can build their own as well. We are happy to recognize such generosity with the Hackaday Prize [Robinhood] achievement.

Achievements are a new addition to our Hackaday Prize, running in parallel with our existing judging and rewards process. Achievements are a way for us to shower recognition and fame upon creators who demonstrate what we appreciate from our …read more

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Posted in 2018 Hackaday Prize, 3d printer, air pressure, AMS, cnc, CNC router, CNC woodworking, conveyor belt, conveyor belt printer, Hackaday Columns, infinite build volume printer, maslow, photospectrometer, plywood, pressure sensitive, pressure sensor, reflectance, reflectance sensor, reprap, scara, solar lantern, spectrometer, The Hackaday Prize, wooden CNC router, woodworking | Leave a comment

Tiny $25 Spectrometer Aims to Identify Materials with Ease

Reflectance spectrometers work on a simple principle: different things reflect different wavelengths in different amounts, and because similar materials do this similarly, the measurements can be used as a kind of fingerprint or signature. By measuring how much of which wavelengths get absorbed or reflected by a thing and comparing to other signatures, it’s possible to identify what that thing is made of. This process depends heavily on how accurately measurements can be made, so the sensors are an important part.

[Kris Winer] aims to make this happen with the Compact, $25 Spectrometer entry for The 2018 Hackaday Prize. The …read more

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Posted in led, led hacks, pcb, reflectance, sensor, spectrometer, The Hackaday Prize | Leave a comment