LM3914
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LED VU Meter using LM3914 and LM358 We can consider the Volume Meter as an Equalizer, which is present in the Music systems. In which we can see the dancing of lights (LEDs) according to the music, if the music is loud, equalizer reaches to its peak and in low music it remains Low. We have also built a Volume Meter or VU meter, with the help of MIC, OP-AMP and LM3914, which glows the LEDs as per strength of… |
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LM3914 Voltmeter Circuit Here we are going to design a simple voltmeter. It’s simple because it includes only one IC chip - LM3914. LM3914 is a chip which drives 10 LED based on linear input voltage value.
The IC provides a decimal output by lighting the necessary LED based on the value of input voltage. The maximum measuring input… |
