The Z80’s address and data lines, as well as the clock, are hooked up to the Raspberry Pi through several MCP23017 GPIO expanders ... all through a Python script. It’s a fun hack that lets ...

While the Raspberry Pi has very good support for an I2C bus ... [Louis] wanted to play with SPI in Python, so he added a C extension to the spidev.c file (available here) that allows him ...