Free Electronic Circuit Collection

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Digital Stopwatch With 7-segment Schematic

You may have heard or seen such an object called Stopwatch hour. Stopwatch function to find out how long it takes in an activity. Usually th...
Digital Decade Counter Schematic

Decade counter circuit is a befungsi electronic circuit to perform a sequence of numerical calculations either forward or bac...
VU LED Indicator Schematic

VU LED indicator is simpler and smaller than their analog, and very common in audio equipment. This version is based on National Semiconduct...
Solar Charger Schematic

To take advantage of sunlight shining on the earth can continue to be utilized to serve as a power source so that we can at least save on el...
Digital Anemometer Schematic

The series is a series of electronic digital anemometer to measure wind speed that is widely used in the field of Meteorology and Geophysics...