Chapter 1: Darkness to Light

Day 03: I'm worried about your battery levels

Battery levels are critical. Wire a DIP switch as an input device to control your lighting and conserve power. Learn digitalRead(), conditional logic with if/else statements, and how to make your HERO board respond to physical switch inputs.

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A lesson from 30 Days Lost in Space (31 filmed lessons (Day 0 to Day 30), about 10 hours of video), taught by Dr. Greg Lyzenga, a Harvey Mudd College physics professor and NASA JPL scientist.

The video lessons are free to watch. Get the kit at craftingtable.com — $60 (sale price through November 1, 2026; regularly $97). 30-day returns.