Arduino & LCD Capacitor Voltage Project | Zig

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The discussion centers around a project involving an Arduino that needs to read voltage levels from a capacitor via an LCD display. The user, Zig, seeks advice on how to implement this, specifically whether to use an external digital voltmeter or the Arduino's built-in analog-to-digital converter (AtoD) for voltage measurement. Participants suggest that utilizing the Arduino's AtoD capabilities would simplify the process significantly compared to reading from an external LCD. Zig expresses appreciation for this guidance, indicating a preference for the simpler approach.
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Hey guys so I'm working on a project with an Arduino. I need the Arduino to read from a LCD to tell it what the voltage of a capacitor is. If the voltage is to low I would like it I switch the circuit on to charge the capacitors back up. Anyone know where a good starting point would be?

Thank you,
Zig.
 
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How is the LCD getting the values to display?
IS there a way you could instead redirect this signal right to the chip?
 
Well I wanted to use something like this for the volt meter. http://www.ebay.com/itm/Digital-Voltmeter-AC-80-500V-Voltage-Measure-LCD-Panel-Meter-230V-110V-220V-/390895017063?pt=LH_DefaultDomain_0&hash=item5b03289c67

But I'm not sure if I can use that or if I would have to use the half divider code specifically for Arduino.
Thank you,
Zig
 
It would almost certainly be order of magnitudes simpler to use the chips built in AtoD than trying to read off of that LCD.
 
Ok well that is good to know. Thank you for your help!
Zig
 

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