Arduino Candle Snuffer

An Arduino system designed to automatically detect the presence of a candle flame using a light or flame sensor and respond with a controlled mechanical action. The sensor continuously monitors light intensity levels in real time and sends data to the Arduino microcontroller. When the detected values exceed a defined threshold indicating that the candle is lit and stable the system initiates a response sequence.

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The Arduino processes this input and activates a servo motor after a short delay or confirmation loop to avoid false triggers. The servo is mechanically linked to a snuffer arm, which lowers over the candle in a precise, controlled motion. This motion gradually cuts off oxygen supply to the flame, safely extinguishing it without airflow disruption or manual interaction.

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The system then resets to monitoring mode, allowing it to repeat the process as needed. A simple feedback loop ensures consistent detection, decision making, and actuation based on real time sensor input.

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This project demonstrates key principles of embedded systems design, including automation, feedback loops, and actuator control, while combining electronics and physical motion into a functional prototype.