LEGO® Powered Up custom train controller guide

The train controller interface of the Powered Up 3.0 app allows now to have multiple hubs connected, but it does not offer a convenient interface to control these trains the same time.

This guide provides 2 code variations with the following abilities using the slider control interface of the Powered Up app:

Simple interface

• Control 2 trains with the 2 sliders
• Control the lights of the 2 trains separately with 2 buttons
• Stop button to stop all trains
• Interface can be customized to control more trains/motors with one slider, e.g. coupled trains

Advanced interface

• Control 4 trains with the left slider
• Switch between the trains with the right button
• Left number shows the speed of the current train, right number shows the train selected
• Left button toggles the light of the currently selected train
• Middle button stops the currently selected train