Description: The MCP23017 is a 16-bit I/O expander that communicates via the I2C bus, allowing microcontrollers to increase the number of available input/output pins. This device is particularly useful in projects requiring multiple connections, such as controlling LED matrices, keyboards, or reading sensors. The MCP23017 offers 16 configurable pins that can be used as inputs or outputs and allows the connection of multiple devices on the same I2C line, thanks to its configurable address. Additionally, it features interrupts, which facilitate the detection of changes in inputs without the need to constantly poll the state of the pins. Its compact design and ease of use make it a popular choice among electronics enthusiasts and developers, allowing for expanded functionality without additional complications in hardware design.
