MCP23017 IIC to 16 Bit IO Expansion Module rca rocks/products/stepper-nema-17-bipolar-motor-42-42-34-mm Pinout & power notes

rocks/products/stepper-nema-17-bipolar-motor-42-42-34-mm Pinout & power notes

5v GND GND Dimension 32mm x 14mm Interface Analog and digital Wiring & usage notes

Drop it in water

Compact stick form factor for tight spaces

Common pairings include the Teensy 4 Audio Shield (Rev D)

MCP23017 IIC to 16 Bit IO Expansion Module rca rocks/products/stepper-nema-17-bipolar-motor-42-42-34-mm Pinout & power notesThe MCP23017 I2C 16 Bit I O Expansion Module adds more digital input and output pins to a microcontroller. It is useful when an Arduino, ESP32, Raspberry Pi, or other control board does not have enough available GPIO pins. The module connects through the I2C interface, which only needs two communication lines: SDA and SCL. It provides 16 extra GPIO pins divided into two groups of eight. Each pin can be set as an input or output through your program.