![]() The LED display is easy to read and interpret.The IC can be programmed to perform other tasks besides measuring voltage.The ICL7107 IC is low cost and readily available in the market.The digital voltmeter is more accurate and precise than analog voltmeters.This simple digital voltmeter circuit does not require any microcontroller.Adjust the potentiometer to get the desired voltage reading on the display.Connect the positive terminal of the battery to the positive rail and the negative terminal to the negative rail.Place the 0.01uF capacitor between pin 32 and the negative rail. Place the 1uF capacitor between pin 18 and the positive rail.Place the 100k ohm resistor between pin 36 and the positive rail. Place the 10k ohm resistor between pin 18 and pin 36. Place the 1k ohm resistor between pin 18 and the negative rail.Place the 1N4001 diode across the positive and negative rails, with the positive side connected to the positive rail. ![]()
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