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2 projects found for "LED"
🧲 PhysicsBeginner1 hr laser + 40 min build
Crank-a-Light: Make Light with Your Arm and Wooden Gears
Turn a wooden crank, a 75:1 wooden gearbox spins a small motor backwards as a generator, and two LEDs light up: red one way, yellow the other. No batteries and no soldering by pupils. For Primary 1 to 6.
#laser cut#gears#generator
⚡ ElectronicsIntermediate1.25 hrs laser + 4 hrs build
Pentagon Mood Lamp: Five Colours, an ESP32 and Its Own Remote
A laser-cut pentagon lantern with one colour per side. An ESP32-C3 dims five 12 V COB LEDs through 2N2222 transistors, controlled from a five-button remote you build yourself or from your phone. Cut files, firmware and an assembly guide included.
#ESP32#mood lamp#laser cut