Tag Archives: mcp23017

Raspberry Pi LogoHow To Use A MCP23017 I2C Port Expander With The Raspberry Pi – Part 3

In How To Use A MCP23017 I2C Port Expander With The Raspberry Pi – Part 2 I explained how to use an MCP23017 16-bit port expander to provide additional outputs. In this article I’ll show a basic input example where … Continue reading

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Raspberry Pi LogoHow To Use A MCP23017 I2C Port Expander With The Raspberry Pi – Part 2

In How To Use A MCP23017 I2C Port Expander With The Raspberry Pi – Part 1 I explained how to configure your Pi to use I2C so you could connect an MCP23017 16-bit port expander to it. If you’ve followed that … Continue reading

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Raspberry Pi LogoHow To Use A MCP23017 I2C Port Expander With The Raspberry Pi – Part 1

For all of my projects I have used the standard GPIO header pins as inputs and outputs. This gives you a total of 17 pins to play with but what if you need more? The easiest way of getting more … Continue reading

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