IO Expander Board

I/O Expander Board offers a convenient way to interface upto 16 I/O pins in your project using SPI/I2C bus.  This kit uses the famous MCP23S17 IO chip from Microhip.

Specifications

• Supply sourced through the interfacing Box Header connector
• The kit has 2 separate Box Header type connector for the 16 pins of I/O port and 1 Box Header for interfacing of the PCB with the host controlling circuit
• Jumper selectable address option is also available for this kit
• Four mounting holes 3.2 mm each
• PCB dimensions 58 mm x 54 mm

Schematic

Parts

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