There's also Lego trains: https://www.lego.com/en-us/product/express-passenger-train-60337 https://www.lego.com/en-us/product/express-passenger-train-6... The

There's also Lego trains: https://www.lego.com/en-us/product/express-passenger-train-60337 https://www.lego.com/en-us/product/express-passenger-train-6... The sensors and engine can be controlled via Bluetooth Low Energy: https://github.com/topics/poweredup https://github.com/topics/poweredup