Building a Spectrometer [the hard way]

I'm building a visible light spectrometer using silicon photomultipliers in a more traditional style, not using a camera like it's done very often. Discover Easy, Affordable, and Reliable PCB manufacturing with JLCPCB! Register to get $70 New customer coupons:   https://jlcpcb.com/?from=thesciencefu... Special Deal: Get a $30 coupon for JLCPCB premium 6-layer PCBs: https://jlcpcb.com/6-layer-pcb?from=g...