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## Components and supplies

## About this project

In this project we measure an unknown resistance using Arduino Uno and a simple voltage divider circuit.

The voltage dividerWith voltage divider we can take a portion of input voltage as output. This is achieved by connecting two resistances in series connection. Because they are connected in series, the same current I runs through them:

If we solve this equation for Z2 we have:

If all values apart from Z2 are known, we can compute the unknown resistance using Vout.

Complete circuitTestingResistors with large valuesThis setup is effective as long as Z1 is close to Z2. The readings are not accurate for large values of Z2 compared to Z1:

## Code

## Schematics

## Comments

#### Author

#### Published on

February 17, 2020#### Members who respect this project

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