What is it?

The GPIO expander board is an extension for the Picoclick-C3 based on the MCP23008 GPIO expander from Microchip. The board can be connected to the Picoclick with an FPC cable and communicates over I2C. The MCP expands the Picoclick with eight GPIOs.

Furthermore the expander can be used to activate the Picoclick by firing an interrupt due to a specific state on a GPIO. The interrupts can be configured over I2C.

Features

• Expands the extension port of the Picoclick with 8 GPIOs
• Communication with the Picoclick over I2C
• Equipped with an ultra low power voltage regulator
• PCB: Matte green solder mask color

There are documentations, software examples and schematics available on the documentation page.