Extra Io Pins MCP23017

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Posted in TechnologyArduino

Introduction: Extra Io Pins MCP23017

did you ever runned out of io pins? Than is here the solution.

Step 1: Part List

you only need a arduino and a mcp23017 (ebay)

Step 2: Watch the Video

watch this video!

Step 3: Upload the Code

Upload this code(put them all in one map)

Step 4: Subscribe

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