This circuit senses AC audio voltage supplied to the car-radio loudspeakers and displays it as power using a LED bar graph, achieving at the same time an attractive visual effect. It is designed to ...
This simple circuit indicates the amount of power that goes to a loudspeaker. The dual-color LED shows green at an applied power level of about 1 watt. At 1.5 watts it glows orange and above 3 watts ...
The ElectroSmash website has featured a new Arduino Audio Meter which takes the form of a programmable guitar pedal based on the Arduino UNO development board. Providing users with the ability to read ...
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