A simple driver for ESP8266 enthusiasts out there to drive MCP23017 16-bit IO Expander
          api          esp8266          embedded          i2c          driver          expander          esp          switch          i2c-bus          espressif          xtensa          i2c-sensors          pin          esp8266-arduino          mcp23017          embedded-c          esp-open-sdk          i2c-interface          mcp23017-esp8266      
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            Updated
            Feb 21, 2017 
- C