Amongus watches for closest train passing by using the red signal.
Just change the decider combinator next to signal to output signal {0: 1, 1:2, 2:3, ...} on the left and {A:1, B:2, C:3 ...}.
by Shabbir Hussain · updated 1/28/2026 · 2
Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Amongus watches for closest train passing by using the red signal.
Just change the decider combinator next to signal to output signal {0: 1, 1:2, 2:3, ...} on the left and {A:1, B:2, C:3 ...}.