SEENGREAT MCP23017 IO Expander Module I2C Interface Expands 16 I/O Pins for Ardui/Stm32/Raspberry Pi Zero W Zero WH 2B 3B 3B+ 4B, 3.3V and 5V Levels, 3-Digit DIP Switch

SEENGREAT MCP23017 IO Expander Module I2C Interface Expands 16 I/O Pins for Ardui/Stm32/Raspberry Pi Zero W Zero WH 2B 3B 3B+ 4B, 3.3V and 5V Levels, 3-Digit DIP Switch

ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects

Waveshare MCP23017 IO Expansion Board I2C Interface Expands 16 I/O Pins Compatible with Both 3.3V and 5V Levels