Some months ago I've found a "forgotten" Z8 BASIC (Z8671 aka Z0867108) MCU, so I decided to give it a new "home" (a board...).
So I designed the RC-Z8BASIC with these spec:
128KB SRAM with battery backup, RS-232 port, serial-USB adapter port, GPIO port, LCD (1602 or 2004) port, User led and...