{"product_id":"pcf8574-io-expansion-board","title":"PCF8574 IO Expansion Board","description":"\u003cp\u003eThe PCF8574 I\/O Expansion Board adds 8 bidirectional digital I\/O pins to any microcontroller via just 2 I2C wires (SDA + SCL). Chain up to 8 modules on the same bus for up to 64 additional I\/O pins. Onboard address selection jumpers (A0, A1, A2). Interrupt output pin for instant input change notification. Compatible with Arduino, ESP32, and Raspberry Pi.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIC: PCF8574\u003c\/li\u003e\n\u003cli\u003eInterface: I2C (2-wire)\u003c\/li\u003e\n\u003cli\u003eI\/O Pins: 8 (bidirectional)\u003c\/li\u003e\n\u003cli\u003eSupply Voltage: 2.5–6V\u003c\/li\u003e\n\u003cli\u003eMax Devices per Bus: 8 (64 total I\/O)\u003c\/li\u003e\n\u003cli\u003eAddress Selection: Jumpers A0, A1, A2\u003c\/li\u003e\n\u003cli\u003eInterrupt Output: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eExpanding digital I\/O on Arduino, ESP32, Raspberry Pi\u003c\/li\u003e\n\u003cli\u003eKeypad and button matrix scanning\u003c\/li\u003e\n\u003cli\u003eMulti-relay and LED array control\u003c\/li\u003e\n\u003cli\u003eI2C-based GPIO expander in space-constrained designs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Powered by INFINITY WORKS","offers":[{"title":"Default Title","offer_id":47371694997558,"sku":"TW336","price":74.8,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9335\/5062\/files\/SD_CARD_MODULE_PCF8574.avif?v=1787646102","url":"https:\/\/tecwizdom.com\/products\/pcf8574-io-expansion-board","provider":"Tecwizdom.com","version":"1.0","type":"link"}