Wednesday, November 22, 2006

Playing with old junk, episode 756412

I found a nice a old HP 82240 thermal printer in the cellar once. You can use it to print stuff from those pretty HP reverse-polish calculators like the HP48. Unfortunately they only speak the proprietary red-eye protocol over infrared so I had to resort to a little bit of hackery using a Atmel Tiny2313 and a IR-diode... And now, it prints! :-) Hooray.

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