The new version of fiddle yard Michelstadt has scenery on half of its modules
and gets a prototypical DrS2(3) panel. See the homepage of the
station owner for more information.
Digital IO board
This board holds three AVR processors ATmega168 and implements 60 digital TTL level IOs
that interface directly to the panel electronics. The digital outputs can lock and unlock
turnouts and signals. The inputs are used to get feedback of turnouts and user requests
for routes. Additionally the board implements SPI busses to connect train number displays.
The design can be found on this page.