Retro computer enthusiast creates an all-new perforated tape reader
SMRTR summary
A retro computing enthusiast named Skyriver built a new perforated tape reader called Putapre using modern components like an infrared LED, phototransistor, and PIC18 microcontroller connected via USB. The optical system required extensive tuning to balance LED strength and sensor sensitivity while reducing crosstalk between channels, ultimately achieving reading speeds of fifty bytes per second.
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