XICOOLEE MCP23017 I/O Expansion Board Module SG-IO-E017, 16 Pins Supports for Raspberry Pi Series, Onboard 3-Digit DIP Switch, I2C Interface Compatible with 3.3V/5V Working Level

🔌 Compact MCP23017 I2C GPIO Expander: SG-IO-E017-A MCP23017 I2C GPIO Expander Module adds 16 digital I/O channels through the I2C bus, helping users expand limited controller pins for compact embedded projects and electronics prototyping. ⚙️ 16 Channel Port Expansion Board: This 16 channel Port Expansion Board supports digital input, digital output and interrupt function testing, making it useful for GPIO extension, signal switching, LED control, key input and sensor interface experiments. ⚡ 3.3V/5V Logic Level Support: The MCP23017 GPIO Expander Module works with both 3.3V and 5V logic levels, suitable for compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+/4B, compatible with Arduino and STM32 platforms. 🔗 PH2.0 and 2.54mm Wiring Options: SG-IO-E017-A I2C GPIO Expansion Board provides a PH2.0 connector and reserved 2.54mm pitch pads, allowing flexible connection to jumper wires, breadboards, custom PCBs and external development boards. 🎛️ Adjustable I2C Address and Demo Codes: Onboard 3-digit DIP switch allows convenient I2C address configuration, while open-source C, Python, Ar-duino and STM32 demo codes help users quickly verify input, output and interrupt functions.