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Close-up of Sealed Membrane 4*4 button pad with red/blue buttons and ribbon cable connection.-DFRobot product sku:FIT0129 image.
Angled shot of 4x4 sealed membrane keypad with sticker for easy installation
Angled shot of 4x4 membrane keypad with sticker
Angled shot of 4x4 sealed membrane keypad with sticker adhesive backing
Angled shot of back of sealed membrane keypad with sticker for electronics projects.

Sealed Membrane 4*4 button pad with sticker

$1.50
SKU: FIT0129
The 4x4 Keypad is a 16-button matrix keypad, easily attachable with adhesive backing, ideal for projects like a mail alarm using a PIR sensor and ESP32.
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    IntroductionDocuments Review

    Introduction

    The 4x4 Keypad is a general purpose 16 button (4x4) matrix keypad. It comes ready to work, simply peel-off the adhesive backing, stick it to your surface and plug it in. 

     

    This time using a PIR sensor and an ESP32 to send an email every time that movement is detected.

    Hardware components:

    Documents

    Review

    Ziad.Naesah Dec 13, 2025

    The Sealed Membrane 4×4 Button Pad with Sticker is a simple, reliable, and affordable input solution for embedded applications. While it doesn’t offer mechanical feedback, its durability, compact form, and ease of use make it an excellent choice for control panels and Arduino-based projects.

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    Sealed Membrane 4*4 button pad with sticker
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