Engine Driver is a model railroad throttle app for use with JMRI. Connects to WiThrottle server to control one to three DCC locos' or consists' direction, speed, up to 29 user-configurable functions, plus turnouts, routes, power and JMRI web server access. See website for prerequisites, setup, operation and support. 发动机驱动程序是与JMRI使用一个模型铁路油门的应用程序。连接到WiThrottle服务器来控制差一分三时DCC疯子'或由'方向，速度可达29用户可配置的功能，加上道岔，线路，电源和JMRI Web服务器的访问。请参阅网站的先决条件，安装，操作和支持。
New Reconnect logic and screen, show -- ++ instead of << >> when slider is hidden, avoid crashes reported to Play Store, improve logging of xml mismatches, handle move of JMRI roster folder, eliminate a cast fatal error seen in Android 4.4.2.