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Dithering_bar_graph_display

2016-12-16 14:43  
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Dithering_bar_graph_display
With this circuit, each of 10 LEDs has a fully on and a partially on mode, making 20 states discernible. This is accomplished by the LM324 (operating as a 1-kHz oscillator) driving a 60-mV pp signal into pin 8 of the LM3914.