An earlier Idea for Design described LED “candles” that you could blow out just like normal birthday candles (“Electronic Birthday Candles ‘Blow Out’ One At A Time”). A thermistor and heating resistor ...

Kids nowadays are so showered with electronic goodies that I suspect a traditionally-lit birthday cake just wouldn’t cut the mustard for some of them. Luckily, over at Instructables they’ve got a ...

This circuit creates a set of LED-based electronic birthday candles that are just as much fun as blowing out wax candles, but are also reusable, scalable, and even eco-friendly. It uses a thermal ...