arduino gps clock
analog clock refreshed by gps-signal on tft display
calculation of sunrise & sunset / sun azimut & sun elevation by own gps-position
calculation of moon phases & moon azimut
switch to day & night color by sun phases
show the rotation of sun & moon on a imitation horizon at the display
tidal level calculation for your predefined location
the code is designed for the uno board and serial connected (TX/RX) to a standard gps-modul.
on the top side is a 240x320 tft-screen directly pluged in to the main borad.
one board pin is used for a lamp, switched on at sunset.
the code is free and can use or change by other people.