tape readers unique solution

From: Allison J Parent <allisonp_at_world.std.com>
Date: Mon Nov 17 13:33:05 1997

<A little bit of head banging and we realized that to read paper tape, all y
<need is a hand scanner, dark background, some kind of rig to hold the scann
<in position above a 1" channel and, well, programming as appropriate.

smashing ants with atomic cannon.

The simplest form of scanner is 9 photocells(photo transistor or diode)
lined up under the tape, light above and the 9th (sproket hole connectd to
the data available(or ack) of a parallel port such as the PC printer port.
Tape movement, pull by hand. should be good for 300->3000 char sec easily.

It's trivial hardware.


Copy LPT: file.tap


Received on Mon Nov 17 1997 - 13:33:05 GMT

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