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 ...

The LM3914 is a truly versatile component. Besides LEDs, only a few other components are needed to make the ‘bidirectional’ bargraph voltmeter shown here. The circuit is similar to a conventional bar ...

Some years ago, one of the fundamental electronic instruments was the laboratory curve tracer. A CRT display would sweep out terminal behavior (current versus voltage) from which you could derive ...