Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins 8 pcs Stacked and Used at the Same Time Allow Multi I2C Modules to be Stacked

Description

🚀 Expand Your Horizons: From Tiny Pins to Massive Possibilities!

The Waveshare MCP23017 IO Expansion Board leverages I2C control to convert 2 signal pins into 16 configurable I/O pins, supporting up to 8 stacked modules for a total of 128 I/Os. Compatible with both 3.3V and 5V systems thanks to its onboard voltage translator, it offers flexible connection options and comes with extensive development resources for popular platforms like Raspberry Pi, Arduino, micro:bit, and STM32—empowering professionals to scale their hardware projects effortlessly.