Arduino capacitane meter with LCD screen

A simple capacitance meter using the arduino. The schematic is for Arduino UNO/NANO and all the the breadboard tests are made using the UNO. For different scales I've used a rotary switch to change between scales. There is also a bit of capacitance theory on the video and each part is explained.

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[scottmorgan]

These Arduino based meters you are doing is just what I've been looking for as my next projects.

[WagonLoads]

I did something similar using just 2 (555 timers). First timer was a constant frequency and the second one(controlled by unknown cap) was used as a gate time. The larger the cap, the longer the gate time. The number of clock pulses counted going through the gate was equal to the value of the capacitor.

[BioRobotics]

Great video. I wasn't expecting all the different types of measuring capacitance. A short summary of what the video was about in the beginning would have been useful.

[shffleo]

I watched so many of your videos and you are too helpful, thanks for the high quality contents!

[ThuanDuong-pvxu]

to: Electronoobs ; ; Your project is the best and careful but the connections between the jumps of ardruino module, jumps of test board, the male jumps of wires, they will be able to make more capacitance and more resistance . I think and I like your project to examine and study . Thank you so much !

[Paes]

Much better is to measure voltage to 3*RC (threshold = 973) because voltage there changes slower (relative to frequency of measurements) and the measurement will be more accurate.

[starinstrument]

Please help me on the code. I use codevision to write the code for atmega328p microcontroller and protuse to see simulation but it read adc value of 961 for 10pf which is not the same with arduino adc value which is 296.

[michaeljosephkoziol]

Great video, but when I tried uploading the sketch to my arduino, I got this error message:

exit status 1
Error compiling for board Arduino/Genuino Uno

Any ideas on what I need to do in order to upload it?

[syedumarjunaid]

please recheck Cu calculation i think Cu = Va0xC1/Va2-Va0.

[shaikabdulrahim]

Hi sir, Is it possible to measure the capacitance when the circuit is working condition.Any suggestions or methods sirs. Thank you sir

[jurgenmartinez]

Is the code you shared for all 4 projects? Inductance, capacitance, current and resistance?
If that's what I've been looking for, thank you very much and a very good project
I liked

[AlienRelics]

The problem with using the internal pullup is that it is approximate, varies from chip to chip, and changes with temperature and voltage.

Thank your explenations. But I think you upload the same code for "low and "high"

[FalconXA]

Great! I tried to do it, for the first and second circuit, it working perfectly. But I I got the problem when you use Arduino nano for the third circuit. Can you do it using Arduino uno for the third circuit?

[namanpassi]

What's the accuracy, precision and error?
It's important

[SQERS]

In capacitance meter from 1pF to 1nF how do you get ADC read value? i have precice value from a know capacitor and max value is always 1023 but where does it show the *ADC real value* ? please help. wish you a nice day

[sarmad]

Hi, thank you for your video, I enjoy new information, one question is there any Arduino CCT for testing Supercapacitors?

[hernanmarcucci]

just perfect, i will try to built it !!

[lucasospina]

Thanks for this excellent video!
You can make a tutorial about how to make a frequency meter?
Regards.

[hansdegroot]

Hi, great video but I realy do not understand how you would know when a capacitor is charged 100%. You get 63.2% of what? IN this case you use the 5 volt of the arduino and you wait until you reach 3.6 volt (63.2% of 5 volt) and see how long it took to get there. But what if you do this at 3.3 volt? do you that wait until you reach 2.0856 volts? (63.2% of 3.3) and get the same answer? Does it work that way? It has just been something I have been wondering about. They say you need a capacitor of x Farad in a certain example. But my projects never match the voltages and that alway makes me wonder if I should use a different cap or not. (yes I know about the volt limit on the cap and to stay well below it) but for eaxmaple: suppose you have a 1uf 160 volt cap and a 1uf 16 volt cap and you use it at max 5 volts would they behave the same?