Are you looking for a resistor who's value you can control from the Arduino?.
ForbiddenYou don't have permission to access /en/Tutorial/CapacitanceMeter on this server.Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request.
Yes, but too complicated.The simplest requires two pins: one to charge and the other to discharge / adc. No diodes and no dedicated discharge / adc pins.A better approach is to use the analog comparator:1) discharge the capacitor.2) charge up with the appropriate energizing pin;3) When the comparator flips, capture the timer count -> that indicates the capacitance.Unless you have a way to measure the internal reference, I would use an external precision voltage reference as one of the source for the comparator.
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16