SC523 is a Z50Bus compatible memory card designed for firmware developers. It allows firmware to be written to “shadow” RAM and then be reconfigured with a toggle switch to act as the systems boot ROM.
Continue reading SC523 ReleasedSCM v1.3 Released
A new version of the Small Computer Monitor (SCM) is now available.
Continue reading SCM v1.3 ReleasedSC145 Released
SC145 is a low profile Compact Flash interface designed for the RC2014 bus.
Continue reading SC145 Released
2nd Source PCBs
You can now buy many of my PCBs from pcb4diy. These are shipped from Germany which might be an advantage, especially for those in the EU.
They are available direct at:
https://www.pcb4diy.de
or through eBay at:
https://www.ebay.co.uk/str/pcb4diy
SC514 Released
Just released: The SC514 Z80 CTC card for Z50Bus.
Continue reading SC514 ReleasedSC500 Series
Just released: The SC500 series is a range of Z50Bus compatible designs.
Continue reading SC500 SeriesSC139 Released
SC139 is a serial communications module based on the 68B50 ACIA and designed for the RC2014 bus.
Continue reading SC139 ReleasedSC143 Released
SC143 is a 128k byte ROM module designed for the RC2014 bus.
Continue reading SC143 ReleasedSC144 Released
SC144 is a dual function real-time clock and I2C bus master card for the Z50Bus.
Continue reading SC144 ReleasedI2C Modules
I now have circuit boards for the first batch of I2C modules.
Continue reading I2C Modules
Small Computer Central 