MCP23017 - i2c 16 input/output port expander ID: 732 - $2.95 : Adafruit Industries, Unique & fun DIY
Adafruit Industries, Unique & fun DIY electronics and kits MCP23017 - i2c 16 input/output port expander ID: 732 - Add another 16 pins to your microcontroller using a MCP23017 port expander. The MCP23017 uses two i2c pins (these can be shared with other i2...