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RichardV31

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Screen Shot 2022-06-26 at 3.57.55 PM.png

Description

I2C keypad with RGB LED and haptic connection

I needed a small numeric keypad for my Arduino project and I decided to make an iteration requiring a very small number of pins.

This version requires only I2C for they keypad, and one pin each to control an RGB led and haptic motor (doesn't come with one, install your own using the soldering headers for it).

It comes with sample code that shows how to read the keyboard and how to react to it.

Schematic and Layout

Schematics

Schematic_SeeedKeys_2022-06-26.png

Jun 27,2022

723 views

I2C keypad with RGB LED and haptic connection

This is a small matrix (4x3) keypad meant to be numeric + 2 buttons. Requires only I2C, but exposes extra pins for RGB LED and vibrations

723

Published: Jun 27,2022

Standard PCB

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