{"product_id":"pcf8574t-i2c-i-o-extension-board-1","title":"PCF8574T I2C I\/O Extension Board","description":"\u003ch1 class=\"t4s-product__title\"\u003ePCF8574T I2C I\/O Extension Board\u003c\/h1\u003e\n\u003cp style=\"text-align: justify;\" data-start=\"0\" data-end=\"396\"\u003eThe PCF8574T I2C I\/O Extension Board is a compact and versatile module based on the PCF8574T 8-bit I\/O expander IC. It allows a microcontroller to expand its digital input\/output pins using the I2C communication protocol, requiring only two data lines. This board is ideal for applications where GPIO pins are limited but additional digital inputs or outputs are needed.\u003c\/p\u003e\n\u003ch3 data-start=\"398\" data-end=\"427\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"430\" data-end=\"449\"\u003eIC Used: PCF8574T\u003c\/li\u003e\n\u003cli data-start=\"452\" data-end=\"479\"\u003eInterface: I2C (SDA, SCL)\u003c\/li\u003e\n\u003cli data-start=\"482\" data-end=\"540\"\u003eOperating Voltage: 2.5 V to 6 V (typically 3.3 V or 5 V)\u003c\/li\u003e\n\u003cli data-start=\"543\" data-end=\"574\"\u003eNumber of I\/O Pins: 8 (P0–P7)\u003c\/li\u003e\n\u003cli data-start=\"577\" data-end=\"645\"\u003eI2C Address Range: 0x20 to 0x27 (configurable via address jumpers)\u003c\/li\u003e\n\u003cli data-start=\"648\" data-end=\"679\"\u003eI\/O Type: Quasi-bidirectional\u003c\/li\u003e\n\u003cli data-start=\"682\" data-end=\"723\"\u003eOnboard Pull-up Resistors for I2C lines\u003c\/li\u003e\n\u003cli data-start=\"726\" data-end=\"776\"\u003eStandard 2.54 mm pin headers for easy connection\u003c\/li\u003e\n\u003cli data-start=\"779\" data-end=\"802\"\u003eCompact PCB form factor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"804\" data-end=\"818\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"821\" data-end=\"875\"\u003eExpands microcontroller GPIO using only two I2C pins\u003c\/li\u003e\n\u003cli data-start=\"878\" data-end=\"933\"\u003eIndividually configurable I\/O pins as input or output\u003c\/li\u003e\n\u003cli data-start=\"936\" data-end=\"990\"\u003eMultiple boards can be connected on the same I2C bus\u003c\/li\u003e\n\u003cli data-start=\"993\" data-end=\"1036\"\u003eSupports both 3.3 V and 5 V logic systems\u003c\/li\u003e\n\u003cli data-start=\"1039\" data-end=\"1132\"\u003eSimple wiring and easy integration with Arduino, ESP32, Raspberry Pi, and similar platforms\u003c\/li\u003e\n\u003cli data-start=\"1135\" data-end=\"1158\"\u003eLow power consumption\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1160\" data-end=\"1178\"\u003eApplications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1181\" data-end=\"1258\"\u003eGPIO expansion for Arduino, ESP32, Raspberry Pi, and other microcontrollers\u003c\/li\u003e\n\u003cli data-start=\"1261\" data-end=\"1314\"\u003eDriving LEDs, relays, buzzers, and digital displays\u003c\/li\u003e\n\u003cli data-start=\"1317\" data-end=\"1365\"\u003eReading switches, buttons, and digital sensors\u003c\/li\u003e\n\u003cli data-start=\"1368\" data-end=\"1402\"\u003eHome automation and IoT projects\u003c\/li\u003e\n\u003cli data-start=\"1405\" data-end=\"1455\"\u003ePrototyping and educational electronics projects\u003c\/li\u003e\n\u003cli data-start=\"1458\" data-end=\"1516\"\u003eIndustrial control systems where I\/O expansion is required\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VISHA WORLD","offers":[{"title":"Default Title","offer_id":44140940820660,"sku":"VM01114","price":75.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0527\/2692\/3444\/files\/PCF8574T_I2C_IO_Extension_Board_1.jpg?v=1770377004","url":"https:\/\/vishaworld.com\/products\/pcf8574t-i2c-i-o-extension-board-1","provider":"VISHA WORLD","version":"1.0","type":"link"}