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#35b Serial Module w/ SIO/2 and rs232
April 10th, 2019
Just another SIO/2 module with 2 FTDI ports and 1 RS232 port. Also containing a crystal oscillator.

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#63a Z80 CPU and Serial I/O
March 30th, 2019
A combined module containing Z80 cpu and a serial interface (MC68B50P), and slot saving.

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#61c The Missing Module
April 21st, 2019
The module has been revised, added selectable I/O addresses. Uses only 16 I/O addresses. The companion to S. Cousins SC108 CPU and memory module.

I sell on Tindie

For a peek on ongoing projects.

RC2014 is a trademark of RFC2795 Ltd ( My modules do not adhere strictly to the "designed for RC2014"labeling scheme, though they are interoperable.
Small Computer Workshop (SCW) and Small Computer Monitor (SCMon) are copyright Steve Cousins (
ROMWBW is copyright Wayne Warthen (