Precision Digital Corporation has announced the latest member of the ProVu® family of digital panel meters, the PD6400 High Voltage and Current Meter. Precision Digital Corporation has introduced the ...

Adafruit has this week announced the availability of a new Mini Power Meter complete with Voltage, Current, Watt’s mAh and mWh display, which is capable of supporting a wide variety of different ...

One of the questions that hobbyists ask over and over is how to select the value of a current limiting resistor for an LED. Usually the seat of the pants response is: “Subtract 2 V from the supply ...

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 ...