![MCP23008 - i2c 8 input/output port expander : ID 593 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits MCP23008 - i2c 8 input/output port expander : ID 593 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/593-01.jpg)
MCP23008 - i2c 8 input/output port expander : ID 593 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![Waveshare MCP23017 IO Expansion Board I2C Interface Expands 2 Signal Pins as 16 I/O Pins Compatible with 3.3V and 5V Levels : Electronics - Amazon.com Waveshare MCP23017 IO Expansion Board I2C Interface Expands 2 Signal Pins as 16 I/O Pins Compatible with 3.3V and 5V Levels : Electronics - Amazon.com](https://m.media-amazon.com/images/I/61aNbX11TbL._AC_UF894,1000_QL80_.jpg)
Waveshare MCP23017 IO Expansion Board I2C Interface Expands 2 Signal Pins as 16 I/O Pins Compatible with 3.3V and 5V Levels : Electronics - Amazon.com
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