Voilà une façon de faire:
Ca utilise deux noeuds souvent intéressants. Trafic (en gros un feu vert/rouge) et trigger.
L’idée est que la Porte mette le feu « porte 1st » à vert et que le message envoyé par Hall traverse le trafic (feu vert). Le feu redevient rouge au bout de 5s (à ajuster suivant le besoin).
Et l’inverse pour l’autre capteur.
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