Epson RC-20 : Looking for software and cable

From: Fred Cisin <>
Date: Tue Sep 30 19:39:06 2003

On Tue, 30 Sep 2003, Stan Sieler wrote:
> Hi,
> I just got an Epson RC-20 ...
> with no software and with no cable :(
> I'm looking for software, naturally :)
> And, if anyone has a cable or information
> about how to make a cable, I'd be interested!

THAT is rare.
(The RC-20 is a wristwatch computer from early to mid 80's
with an imitation Z80, touch screen, and serial port)
It was never exported.

Is your RC-20 working?
The software in mine was all Japanese. I never could figure out
how to tell the "World Clock" program that Honolulu was WEST of us.

The cable is a three conductor ("stereo") "ultra-mini" (smaller
than walkman). Ground, transmit, receive - I don't know pinout,
but I may have it somewhere.

I have a book for it, (that might have the cable pinout)
that has a bunch of sample programs - fairly straightforward
Z80 code, but all comments, messages, explanations, etc.
are in Japanese.

A friend, who I haven't heard from in 15 years, had one and
needed to reload the software. In Japan she bought an accessory
for it that had a ZIF socket and cable to the watch. She insisted
that it was called a "ROM ROADER". (Katakana doesn't differentiate
between R and L sounds)

I don't think that I can dig it out before VCF, but I'll try.

Fred Cisin            
Received on Tue Sep 30 2003 - 19:39:06 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:36:27 BST