{"id":317,"date":"2026-01-25T06:33:25","date_gmt":"2026-01-25T06:33:25","guid":{"rendered":"https:\/\/curiosityhub.in\/store\/?post_type=product&#038;p=317"},"modified":"2026-03-10T09:33:21","modified_gmt":"2026-03-10T09:33:21","slug":"4x4-keypad","status":"publish","type":"product","link":"https:\/\/curiosityhub.in\/store\/product\/4x4-keypad\/","title":{"rendered":"4&#215;4 Matrix Keypad Module \u2013 Pack of 1"},"content":{"rendered":"<p>\ud83d\udcdd Product Description:<br \/>\nThe 4&#215;4 Matrix Keypad Module is a 16-key input device used to enter numbers, letters, and commands in electronic projects. It is arranged in a matrix format (4 rows \u00d7 4 columns), which reduces the number of input pins required. This keypad is widely used in security systems, access control, calculators, and DIY electronics projects. It is lightweight, durable, and easy to interface with microcontrollers.<\/p>\n<p>\u2699\ufe0f Product Details:<br \/>\n\u2022 Keypad Type: 4&#215;4 Matrix Membrane Keypad<br \/>\n\u2022 Number of Keys: 16<br \/>\n\u2022 Layout: 4 Rows \u00d7 4 Columns<br \/>\n\u2022 Operating Voltage: 3.3V \u2013 5V DC<br \/>\n\u2022 Interface: Matrix Output (8 Pins)<br \/>\n\u2022 Key Type: Tactile Membrane Switches<br \/>\n\u2022 Material: Flexible PET Membrane<br \/>\n\u2022 Lifespan: Long Key Press Life<br \/>\n\u2022 Low Power Consumption<br \/>\n\u2022 Compatible With: Arduino, ESP8266, ESP32, Raspberry Pi  <\/p>\n<p>\ud83d\udce6 Pack Details:<br \/>\n\u2022 Quantity: 1 Pieces<br \/>\n\u2022 Condition: New<br \/>\n\u2022 Color: Black \/ Grey (May Vary)  <\/p>\n<p>\ud83d\udd27 How to Use:<br \/>\n1. Connect the 8 keypad pins to digital pins of controller.<br \/>\n2. Install Keypad library in Arduino IDE.<br \/>\n3. Define rows and columns in code.<br \/>\n4. Upload example program.<br \/>\n5. Press keys to read input via Serial Monitor or display.<br \/>\n6. Use keypad input for passwords, menus, or controls.<\/p>\n<p>\ud83d\udcda Applications:<br \/>\n\u2022 Password Lock Systems<br \/>\n\u2022 Access Control Projects<br \/>\n\u2022 Digital Door Locks<br \/>\n\u2022 Calculators<br \/>\n\u2022 ATM Simulation Projects<br \/>\n\u2022 Security Panels<br \/>\n\u2022 Robotics Control Systems<br \/>\n\u2022 Educational Electronics Kits  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>4&#215;4 Matrix Keypad Module \u2013 Pack of 1. 16-key membrane keypad for Arduino and DIY projects. Ideal for password systems, security, and user input applications.<\/p>\n<p>\u2b50 Why Choose This Keypad?<br \/>\n\u2714 Compact &#038; Lightweight<br \/>\n\u2714 Easy Interfacing<br \/>\n\u2714 Durable Membrane Design<br \/>\n\u2714 Low Power Usage<br \/>\n\u2714 Reliable Key Response<br \/>\n\u2714 Perfect for DIY &#038; Learning  <\/p>\n<p>Package Includes:<br \/>\n1 x 4&#215;4 Matrix Keypad Module<\/p>\n","protected":false},"featured_media":96,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[27],"product_tag":[117,89,36,39,116,109],"class_list":{"0":"post-317","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-sensors-modules","7":"product_tag-4x4","8":"product_tag-4x4-keypad","9":"product_tag-arduino","10":"product_tag-iot","11":"product_tag-keypad","12":"product_tag-robotics","14":"first","15":"instock","16":"sale","17":"virtual","18":"sold-individually","19":"taxable","20":"purchasable","21":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/curiosityhub.in\/store\/wp-json\/wp\/v2\/product\/317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/curiosityhub.in\/store\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/curiosityhub.in\/store\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/curiosityhub.in\/store\/wp-json\/wp\/v2\/comments?post=317"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/curiosityhub.in\/store\/wp-json\/wp\/v2\/media\/96"}],"wp:attachment":[{"href":"https:\/\/curiosityhub.in\/store\/wp-json\/wp\/v2\/media?parent=317"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/curiosityhub.in\/store\/wp-json\/wp\/v2\/product_brand?post=317"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/curiosityhub.in\/store\/wp-json\/wp\/v2\/product_cat?post=317"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/curiosityhub.in\/store\/wp-json\/wp\/v2\/product_tag?post=317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}