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74HC595 is not bidirectional #5

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solderneer opened this issue Jun 17, 2017 · 1 comment

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solderneer commented Jun 17, 2017

None of the switch pins will work as inputs because shift register is not bidirectional. Replace it with a MUX and then reroute the board

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solderneer commented Jul 11, 2017

Temp fix: Use spare GPIO in a matrix

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