Measuring Sound Levels in Decibels?

Anyone got any tips on how to measure sound in decibels? A cheap sensor that is arduino compatible?

lots and lots of sensors available. You just need to google them :slight_smile: What truly matters is how you calibrate the levels. You can use them as-is but if you really want accuracy, get a sound level meter so you can adjust (ratio) your code accordingly. As for the sensor, this should get you started :wink: