Neat.
https://www.raspberrypi.org/blog/raspberry-pi-pico-controlled-model-railroad/
Very neat but can't help thinking it would be even more pleasing if the train just sped up every time it passed the sensor, eventually resulting in a spectacular derailment.
@Fox started
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Neat.
https://www.raspberrypi.org/blog/raspberry-pi-pico-controlled-model-railroad/