You can install this Wi-Fi/DCC Interface in many HO or other scale locomotives together with your choice of suitable Sound or Non-Sound DCC Decoder. This module provides DCC signals to the decoder controlled by hand-held throttles supporting the Hoffman WiThrottle protocol as used by JMRI. Examples are WiThrottle on Apple IOS, Engine Driver on Android and the popular TCS UWT-100 Universal Wi-Fi Throttle. DC power can be supplied from a 12 volt battery. YOU DO NOT NEED TO INSTALL JMRI!
DC power can be supplied from a 12 volt battery.