{"product_id":"mcp23017-16-bit-i-o-expander-module-i2c-spi","title":"MCP23017 16-Bit I\/O Expander Module (I2C)","description":"\u003cp\u003eAdd 16 extra GPIO pins to your ESP32 or any microcontroller using just two I2C wires. The MCP23017 converts 16-bit parallel I\/O to I2C serial, with two programmable interrupt outputs and a polarity inversion register, which makes it ideal for button matrices, touch inputs, LED control and other pin-hungry wearable builds.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChip: MCP23017, 16-bit bidirectional I\/O\u003c\/li\u003e\n\u003cli\u003eInterface: I2C, up to 1.7MHz\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 1.8V to 5.5V\u003c\/li\u003e\n\u003cli\u003eOperating temperature: -40C to 85C\u003c\/li\u003e\n\u003cli\u003eAddress pins A0, A1, A2 (up to 8 modules on one bus)\u003c\/li\u003e\n\u003cli\u003eTwo interrupt outputs (INTA, INTB) and reset pin\u003c\/li\u003e\n\u003cli\u003eInternal power-on reset\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tinker Tailor","offers":[{"title":"Default Title","offer_id":67738743832809,"sku":"MCP23017-MODULE","price":5.95,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0790\/8006\/3209\/files\/Screenshot2026-10-22140437.png?v=1792690747","url":"https:\/\/www.tinkertailor.ca\/products\/mcp23017-16-bit-i-o-expander-module-i2c-spi","provider":"Tinker Tailor","version":"1.0","type":"link"}