More things, few cable... - Raspberry Pi Forums

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hi, question is, it's possible connect things serial ttl camera, speaker, lcd , button 4 wires (actually 2 because 2 5v , gnd)? , if it's possible, can explain me how.. because i've connected things had use gpio raspberry has..

answer quite difficult question ;)

in theory, use i2c port expander give serial control on external set of gpio. http://www.adafruit.com/products/732


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