Z21 LAN to ExpressNet DCC digital Arduino Shield v2
Design by: BorgMcz
Shield for Arduino, which allows to connect your SmatPhone as controller DCC model railroad. More info on the original page: http://pgahtow.de/wiki/index.php?title=Z21_mobile#Z21_-_Slave_am_XpressNet and with the adaptation: www.dccmm.cz