Raspberry Pi HAT - 32 I/O Port Expander - MCP23017 - I2C - Black
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<b>[Product Information]</b><br>
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<li>32 Digital Inputs/Outputs, based on the Microchip MCP23017 chip</li>
<li>Control via the Raspberry Pi I2C port, selectable I2C addresses thru switches</li>
<li>Stackable, up to 4 boards per Raspberry Pi, right angled headers for ease connection when stacked</li>
<li>All I/Os are 5V tolerant, built in 3.3V to 5V shifter for Raspberry Pi I2C port protection</li>
<li>Raspberry Pi can be Back Powered or isolated thru a jumper, The board can be powered thru the Raspberry Pi GPIO 5V pins, or thru a 5V polarized input header from an external supply</li>
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