{"product_id":"1x4-independent-key-button-keypad-module-4-key-3-3v-5v-arduino-5pack","title":"1×4 Independent Key Button Keypad Module — 4-Key, 3.3V\/5V, Arduino MCU (5-Pack)","description":"\u003ch2\u003e1×4 Independent Key Button Keypad Module — 4-Key, 3.3V \/ 5V, Arduino MCU (5-Pack)\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003e1×4 independent key button module\u003c\/strong\u003e provides 4 individual push-button inputs, each with its own digital output pin. Unlike matrix keypads, each key has a dedicated output line — no scanning required, no key ghosting, and direct connection to any GPIO pin. Operating at 3.3V or 5V, it is compatible with Arduino, ESP32, STM32, and Raspberry Pi. Supplied as a 5-pack.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Count\u003c\/td\u003e\n\u003ctd\u003e4 independent keys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput per Key\u003c\/td\u003e\n\u003ctd\u003e1 dedicated digital output pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V or 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Logic\u003c\/td\u003e\n\u003ctd\u003eLOW when pressed (active low, pull-up)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003e5-pin 2.54mm header (VCC, GND, K1–K4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Quantity\u003c\/td\u003e\n\u003ctd\u003e5 modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose Independent Key Module vs Matrix Keypad?\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eIndependent Key Module\u003c\/th\u003e\n\u003cth\u003eMatrix Keypad\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring\u003c\/td\u003e\n\u003ctd\u003e1 pin per key (simple)\u003c\/td\u003e\n\u003ctd\u003eRow + column scanning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Ghosting\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003ePossible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCode Complexity\u003c\/td\u003e\n\u003ctd\u003eSimple digitalRead()\u003c\/td\u003e\n\u003ctd\u003eRequires scanning library\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eMenu navigation, simple input\u003c\/td\u003e\n\u003ctd\u003eFull alphanumeric input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose This Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eNo scanning required\u003c\/strong\u003e — read each key with a simple \u003ccode\u003edigitalRead()\u003c\/code\u003e\n\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e3.3V \/ 5V compatible\u003c\/strong\u003e — works with Arduino, ESP32, STM32, Raspberry Pi\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eNo key ghosting\u003c\/strong\u003e — independent outputs, simultaneous key presses supported\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e5-pack value\u003c\/strong\u003e — stock for multiple projects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino menu navigation (up\/down\/select\/back)\u003c\/li\u003e\n\u003cli\u003eInput selection and mode switching\u003c\/li\u003e\n\u003cli\u003eGame controller button input\u003c\/li\u003e\n\u003cli\u003eIndustrial HMI button panel\u003c\/li\u003e\n\u003cli\u003eEmbedded system user interface\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5 × 1×4 Independent Key Button Keypad Module\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991438872811,"sku":"\u003cnone\u003e","price":28.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/1x4-independent-key-button-keypad-module-diy-kit-arduino-mcu.webp?v=1761879246","url":"https:\/\/keszoox.com\/products\/1x4-independent-key-button-keypad-module-4-key-3-3v-5v-arduino-5pack","provider":"Keszoox","version":"1.0","type":"link"}