Traffic Light 01 — One Lamp On

Briefing

Turn on the North-South red lamp when power is on. One input, one output, one rung — the simplest possible traffic-light program. This is stage 1 of 5: you'll build up to the full 4-way intersection one concept at a time.

Objectives

• When POWER_ON is true, NS_RED turns on
• When POWER_ON is false, NS_RED turns off

I/O Table

Your program will be tested against:

All test cases run automatically when you submit. Assertions are hidden until you pass.

1. #1POWER_ON true → NS_RED on

   Applying power lights the North-South red lamp

2. #2POWER_ON false → NS_RED off

   Removing power turns off the lamp