{"product_id":"mcp23017-i2c-16bit-io-port-expander-presoldered","title":"MCP23017 Pre-Soldered I2C 16-Bit I\/O Port Expander for Arduino, Raspberry Pi \u0026 ESP32","description":"\u003cp\u003e\u003cstrong\u003eMCP23017\u003c\/strong\u003e is a \u003cstrong\u003e16-bit I\/O port expander\u003c\/strong\u003e that adds 16 extra digital GPIO pins over the \u003cstrong\u003eI2C\u003c\/strong\u003e bus, making it an easy way to increase input and output capacity on microcontroller and SBC projects. Built around the MCP23017 chip and offered here pre-soldered for quick integration, this module is ideal for reading buttons and switches or driving LEDs, relays, and other digital peripherals when native pins are limited. Use this \u003cstrong\u003eI2C GPIO expander\u003c\/strong\u003e with Arduino, Raspberry Pi, and ESP32 for robotics, home automation, embedded control, and general prototyping where compact digital expansion is needed in pin-limited designs.\u003c\/p\u003e","brand":"ShillehTek","offers":[{"title":"Default Title","offer_id":52709889245471,"sku":"NB143","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4340\/8415\/files\/mcp23017-i2c-16bit-port-expander-top-01.jpg?v=1786597519","url":"https:\/\/shillehtek.com\/products\/mcp23017-i2c-16bit-io-port-expander-presoldered","provider":"ShillehTek","version":"1.0","type":"link"}