The adafruit mcp23x08.h file is a core component of the Adafruit MCP23017 Arduino Library, which provides support for the (I2C) and MCP23S08/17 (SPI) family of GPIO port expanders. Where to Download Adafruit_MCP23X08.h
Open the Arduino IDE, navigate to Sketch > Include Library > Manage Libraries , and search for "Adafruit MCP23017" to install it automatically. Why You Need This Library adafruit mcp23x08.h download
Download the Adafruit MCP23017 Arduino Library directly from the repository. The adafruit mcp23x08
The MCP23X08 series (like the MCP23008) allows you to add to your microcontroller using only two pins (I2C or SPI). Go to product viewer dialog for this item. / MCP23S08 MCP23017 / MCP23S17 GPIO Count GPIO Count Interfaces I2C (008) / SPI (S08) Interfaces I2C (017) / SPI (S17) Header File Adafruit_MCP23X08.h Header File Adafruit_MCP23X17.h 1.8V to 5.5V 1.8V to 5.5V How to Install Adafruit MCP23008 library - Arduino Library List The MCP23X08 series (like the MCP23008) allows you
For modern projects, the standalone Adafruit_MCP23008 library is considered . You should instead download the comprehensive Adafruit MCP23017 Arduino Library , which includes the Adafruit_MCP23X08.h header for 8-bit expanders.