{"product_id":"4x4-matrix-membrane-keypad","title":"4X4 Matrix Membrane Keypad","description":"\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cstrong\u003e4×4 Matrix Membrane Keypad\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003eBy using a Matrix configuration, this keypad allows you to control 16 individual buttons using only 8 GPIO pins. It operates on the principle of intersection: when a button is pressed, it shorts one specific Row wire to one specific Column wire.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eWhy it’s a UI Powerhouse:\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e• Enhanced Functionality: The additional \"A, B, C, D\" column is perfect for mapping specific software actions like Enter, Back, Scroll Up, and Scroll Down, making your project feel like a finished product rather than a prototype.\u003cbr\u003e• Space-Efficient Mounting: Like the 4×3 version, this features an adhesive back. You can stick it to the exterior of a project box, passing the flexible ribbon cable through a small slit. This keeps your electronics protected inside while providing a clean interface outside.\u003cbr\u003e• Industrial Durability: The membrane layers are sealed, making the keypad resistant to dust and light splashes. With a lifespan of millions of presses, it handles repetitive data entry with ease.\u003cbr\u003e• Breadboard Ready: The 8-pin connector has a standard 2.54mm pitch, fitting perfectly into jumper wires or breadboard rows.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eTechnical Capabilities:\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e• Key Layout: 16 keys (0-9, A-D, *, #).\u003cbr\u003e• Interface: 8 pins (4 Rows + 4 Columns).\u003cbr\u003e• Scanning Logic: Requires a sequential \"sweep\" of rows and columns to identify the pressed key.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003eThe 4×4 keypad is the primary choice for complex security systems, custom calculators, CNC machine control pendants, and multi-level menu interfaces.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"TinkEdge","offers":[{"title":"Default Title","offer_id":46404773576903,"sku":"TE-KEYPA-096","price":66.34,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6620\/6407\/files\/MembraneKeypad4x4_1.png?v=1776494153","url":"https:\/\/shop.tinkedge.tech\/products\/4x4-matrix-membrane-keypad","provider":"TinkEdge","version":"1.0","type":"link"}