Display local Sidereal TIme
A Pi Pico is wired on an Arduino proto board giving the Pico a UNO form factor. A DS3231 real time clock is used and set to UTC time. A 128 by 64 I2C OLED is used to display the sidereal time and some star catalog items as the cross the meridian. \
There is wiring described for a CNCv3 stepper driver and some stepper driver test code. This is not needed for the clock to function, it is just some testing for a future project.