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DIY 3×4 Keypad for the Arduino (includes Schematics )

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Hi,

In this tutorial we’re going to create a DIY 3×4 Keypad. This keypad is perfect to use in your Arduino projects and a great project to practice etching.

Parts Required

parts_required

Parts Required

Schematics

diy_3x4_keypad_for_Arduino

 

  • Click to download a PDF with the Schematics that you need print in order to etch your own PCB.

How to etch a PCB

If you don’t know how to etch a PCB please watch the YouTube video below created by a YouTuber called JumperOneTV. He explains really well the whole process.


Pictures of my Keypad

pcb_and_schematics_before_etching

Before Etching (Schematics + PCB)

Etched PCB

Etched PCB

PCB back drilled

PCB back drilled

pcb_drilled_top

PCB top drilled

Final Product top

Final Product top

Final Product back

Final Product back

This Keypad is great to use with the Arduino and I’ll post a project using this Keypad really soon.

Arduino with Keypad

Arduino with Keypad

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