Lesson 1 — Button → Light

Briefing

Press POWER_ON and LIGHT turns on. That's it — your first rung. A contact reads an input. A coil writes an output. When the contact is true, energy flows right to the coil and the output energises.

Objectives

• When POWER_ON is true, LIGHT turns on
• When POWER_ON is false, LIGHT 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 → LIGHT on

   Pressing the button turns on the light

2. #2POWER_ON false → LIGHT off

   Releasing the button turns off the light