{"product_id":"3x4-matrix-keypad","title":"3x4 Matrix Keypad","description":"\u003cp\u003ePunch in your secret key (or Jenny's number) into this numeric matrix keypad. This keypad has 12 buttons, arranged in a telephone-line 3x4 grid. The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad. Check the tutorials tab for links to an Arduino library and example code.\u003c\/p\u003e\u003cp\u003eWe include some header so you can plug this into a breadboard with ease, some light soldering is required to attach it. Or you can use plain wires if you like. It's basically a sturdier version of our Membrane 3x4 Matrix Keypad. Note that the rows and columns are intermixed. The order from left to right is COL2, ROW1, COL1, ROW4, COL3, ROW3, ROW2.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCheck out our detailed guide with wiring diagrams, libraries and example sketches for all sorts of matrix keypads.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWe also have a 4x4 version of this matrix keypad and a version that has phone-styling with letters printed over the numbers\u003c\/p\u003e\u003cp\u003eIf you dig our demo, check out the Adafruit FeatherWing OLED - 128x32 OLED\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eTechnical Details\u003c\/h2\u003e\u003cdiv id=\"tab-technical-details-content\" class=\"panel-collapse collapse in\"\u003e \u003cdiv class=\"row\"\u003e \u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12\"\u003e\n\u003cul\u003e\n\u003cli\u003eForce: 160-180g\u003c\/li\u003e\n\u003cli\u003eContact Resistance: \u0026lt;100Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCheck out our detailed guide with wiring diagrams, libraries and example sketches for all sorts of matrix keypads.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProduct Dimensions: 70.0mm x 51.0mm x 9.7mm \/ 2.8\" x 2.0\" x 0.4\" \u003c\/p\u003e\n\u003cp\u003eProduct Weight: 17.6g \/ 0.6oz \u003c\/p\u003e\n\u003c\/div\u003e \u003c\/div\u003e\n\u003cul id=\"product-files\"\u003e \u003cli\u003e\nDiagram \u003c\/li\u003e\n\u003c\/ul\u003e \u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e \u003c\/div\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":46982535315628,"sku":"tkw1787257838235","price":4.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3858\/0140\/files\/3x4-matrix-keypad_1.jpg?v=1787257847","url":"https:\/\/findnuvorio.com\/products\/3x4-matrix-keypad","provider":"Findnuvorio","version":"1.0","type":"link"}