LM393 Sound Detection Sensor Module – Black
Candle Safety
1. Trim your wick before burning your candle the first time and every subsequent burn thereafter.
2. We advise burning your candle for periods of no longer than three hours at a time.
3. Discontinue burning your candle when there is 10mm / 1cm of wax is remaining.
4. Always burn your candle on a stable and heat resistant surface, away from drafts or items that can catch alight.
5. Never leave a burning candle unattended, near children or pets.
6. If you’re burning more than one candle at a time, space your candles approximately 100mm (10cm) apart.
LM393 Sound Detection Sensor Module for Arduino detects whether the sound has exceeded a threshold value. The sound is detected via a microphone and fed into an LM393 op-amp. The sound level setpoint is set via an onboard potentiometer. When the sound level exceeds the setpoint, an LED on the module is illuminated and the output is sent low. Note: This sensor only recognizes the availability of sound cannot identify the size of the sound or the specific frequencies of sound. Features : Signal output indication. The output is digital. Single-channel signal output. With the retaining bolt hole, convenient installation. Output low level and the signal light when there is sound. Package Includes : 1 x LM393 Sound Detection Sensor Module.