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topshed/Arduino - 4 - Analog.md

Last active April 20, 2018 13:00
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Arduino - 4 - Analog.md

Analog inputs

Analog electronics have a continuously variable signal, in contrast to digital electronics where signals usually take only two levels (HIGH/LOW or 1/0).

This circuit demonstrates how to read an analog input - the voltage across a variable resistor - and uses this to control the tone of a buzzer.

Imgur   Imgur

Can you swap the buzzer for an LED (and resistor) and use similar code to control the frequency of blinking?

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