An LED you can blow out like a candle (analog circuit) - ByTechLab
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DIY Smart Electronic Candle Circuit using LDR
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DIY Smart Electronic Candle Circuit using LDR
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Welcome for Visiting - Monday Kids Colorful Happy Birthday LED Candle Circuit DIY Kits - Bring Fun and Knowledge to Your Kids
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Candle light simulator circuit
ATTiny85 LED Flickering Candle for Jack O' Lantern - Hackster.io