Recommended · for some experience

HariFun #143 - How to read a 4x4 keypad using just one Arduino pin!

Name: HariFun #143 - How to read a 4x4 keypad using just one Arduino pin!
Channel: Hari Wiguna
Description: Shared as a clever trick for reading a sixteen-button keypad through a single analog pin, helpful when a project is short of microcontroller pins.

Hari Wiguna

Why people recommend it

Shared as a clever trick for reading a sixteen-button keypad through a single analog pin, helpful when a project is short of microcontroller pins.

Watch for: One commenter warns it is slower and less accurate than a normal matrix scan

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New Arduino Tutorials

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