20 LEDs 0 To 20V Bar-Graph Voltage Meter Using LM3914
0 – 20V LED Voltmeter project displays the voltage of the source using 20 LED’s. This project is based on the famous LM3914 IC from National Semiconductor. Power Supply Input: 5 VDC Max @ 30 mA in DOT mode and 300 mA in BAR mode Specifications Output: 20 LED’s Range selectable with onboard preset 2 Types of
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