Marek Baczynski has developed a DIY electronic candle designed to mimic two familiar actions: lighting a candle and blowing it out. The project uses a thermistor to control a small bulb.
According to the available information, the thermistor responds to changes associated with heat and airflow, allowing the bulb to be switched on and off. The result is an electronic version of a candle that reproduces the basic interaction without relying on a conventional flame.
The project is presented as a DIY build and is associated with LED-related electronics. No further technical specifications or construction details are available in the supplied material.
Sources: Golem.de.