Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Stack to 8 pcs for Raspberry Pi Raspberry Pi 4B+ 4B 3B+ 3B 2B+ Zero W WH 2 W Micro:bit Ardui STM32
Product ID: 550040206
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Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Stack to 8 pcs for Raspberry Pi Raspberry Pi 4B+ 4B 3B+ 3B 2B+ Zero W WH 2 W Micro:bit Ardui STM32
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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.