Introduction: Arduino Nano Capacitance Meter

This project is pratically three components because it's formed of a 16X2 LCD Display, a potentiometer 10K, and an Arduino Nano. The rest of parts are a PCB 5cm x 7cm, 1 X 40 HEADER, 0.1" SPACING, and 4-625" STAINLESS STEEL HEX STANDOFF, M-F, 6-32. In a nutshell, Capacitor Meter can measure from 0.000 to 1000uF.

Step 1: Bill of Materials

Picture of Bill of Materials

What you will need:

1-Arduino Nano

1-16X2 LCD Display

1-5cm x 7cm PCB

1-10K Potentiometer

1-1 X 40 HEADER, 0.1" SPACING


Some Connecting wires

Soldering Iron

Soldering 60/40 roll

Step 2: Schematic

Picture of Schematic

This is your schematic so that you can construct the project correctly.

Step 3: Preparing Your LCD

Picture of Preparing Your LCD

Taking the 1 X 40 HEADER, 0.1" SPACING, cut 16 pins and insert that part in your LCD.

Step 4: Preparing the Arduino Nano

Picture of Preparing the Arduino Nano

Taking the 1 X 40 HEADER, 0.1" SPACING, cut 6 pins and 3 pins and insert those parts in your Arduino Nano. That is, the 6 pins are to install in D2-D7 and +5V-GND pins.

Step 5: Installing the LCD

Picture of Installing the LCD

Taking the PCB, insert the LCD previously prepared.

Step 6: Installing the Arduino and Pot

Picture of Installing the Arduino and Pot

Taking the circuit with the LCD previously inserted, install Arduino and pot.

Step 7: GND Connections

Picture of GND Connections

Do GND connections each other LCD, Pot, and Arduino nano.

Step 8: +5V Connections

Picture of +5V Connections

Do +5V connections each other LCD, Pot, and Arduino nano.

Step 9: Central Pin Pot

Picture of Central Pin Pot

Connect the central pin from pot to LCD.

Step 10: Connect Arduino D2-D7

Picture of Connect Arduino D2-D7

Connect the arduino pins from D2 to D7 to its respective LCD pins according to schematic.

Step 11: Install the Hardware

Picture of Install the Hardware

Install the 4-625" STAINLESS STEEL HEX STANDOFF, M-F, 6-32.

Step 12: Complete Your Project

Picture of Complete Your Project

Once completed your project, you can upload the code. For that, you should visit the next website:


abbabba (author)2017-11-22

Why don't you design your own character for "µ" instead of using the silly "u"? If my memory serves me right, you can design up to 8 custom characters with these LCD displays. Imagine how much more professional would your project look.

pfred2 (author)2017-11-20

I wonder why AVR transistor testers can only measure down to 36 pF? You seem to have no problem going to 0 pF.

offtherails2010 (author)2017-11-16

oh and try Cadsoft Eagle (free) for making schematics and high quality PCB files, so much easier and very powerful software :)

pfred2 (author)offtherails20102017-11-20

KiCAD is really free.

jandy171 (author)2017-11-16

Works great. Thanks

offtherails2010 (author)2017-11-16


well done,, Great project and has Schematic !!

Very Impressed :)

acheide (author)2017-11-14

Nicely done Instructable.


About This Instructable




Bio: I'm engineering and like to design electronic and programming things with Arduino hardware.
More by braulio777:Arduino Nano Capacitance Meter10 Bits Binary CounterArduino Traffic Light
Add instructable to: