Solar-Powered Nightlight

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A nightlight that charges itself in daylight and lights up on its own at night, with no code and no power switch.

Source book: Moving Rainbow
Kit page: https://dmccreary.github.io/moving-rainbow/kits/solar-powered-led-nightlight/
Printable one-pager: solar-powered-led-nightlight-one-pager.html

Features

• How a solar panel charges a battery
• How a diode keeps current flowing the right way
• How a transistor switches the lamp on at night

Benefits

• Free, open lessons: the Moving Rainbow textbook has the kit page, wiring, and MicroPython code.
• Ready-made curriculum: 3 additional lab pages walk students through the build step by step.
• Budget: TBD (a small 5 V solar panel is about \(4–\)9 on eBay; the other parts are not itemized on the kit page).

Parts

• 830-Point Breadboard ($1.10) — Breadboard