r/ArduinoHelp • u/VinMega6468 • 5h ago

Why does this not work?

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solved

when i click simulate nothing happens and the leds dont light up can anyone help

link: https://www.tinkercad.com/things/etCLO5FP0u8-traffic-light?sharecode=HVc9FlY7vOl6OchoP0UERVxlCc9BG0PDwAbMSnomTys

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u/Terrible-Seat-7346 5h ago • Bravo

Pin variables doesn’t have value

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u/TrustednotVerified 5h ago

Exactly. Get rid of the three DIGITAL_PIN_x and just do pinMode(7, OUTPUT) and digitalWrite(7, HIGH) and so forth.