This candle blower from demirkolalisinan on Instructables reminds me of my aunt’s bank collection that, looking back now as an adult, must have been a . She always had change around which entertained us kids for hours, putting, bowling, punting etc our coins into heavy, hard to manipulate machinery. I remember a bank where fishing was somehow involved but how that actually worked I couldn’t say. And now we can tickle this sense of fascination with fire!
Our project consists of a plywood box that is designed to look like a birthday cake. The main parts include a heat sensor, a fan, a candle holder, and motors for the moving parts. Once the sensor detects heat, the servo motor opens up a small portion of the top of the box where the fan is located. Once the fan faces the candlelight, it blows out the candle with the help of the DC motor. The system works on an if condition where if the heat sensor exceeds the value of 10, it starts to spin the fan motor.
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