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edited body; edited tags

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edited Dec 12, 2013 at 19:56

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I have a hand full of MCP23017 (16 bit multiplexers/ I/O Expander) but I can only get 8 IC oron the bus dewdue to the limit of address but iI need 200 pins (about 13 ICs) for a 888 RGB cube and was thinking about and wondering what issues I might have if. A. changing the addresses of the icIC actively OR B. use a transistor to disconnect the clock of on set of ic's and control the other set

I don't like the idea of a shift register because of size and programming headache

MCP23017 data sheet

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asked Dec 12, 2013 at 19:48

Rex Fender Baird

MCP23017 in series

I have a hand full of MCP23017 (16 bit multiplexers/ I/O Expander) but I can only get 8 IC or the bus dew to the limit of address but i need 200 pins (about 13 ICs) for a 888 RGB cube and was thinking about and wondering what issues I might have if. A. changing the addresses of the ic actively OR B. use a transistor to disconnect the clock of on set of ic's and control the other set

I don't like the idea of a shift register because of size and programming headache

MCP23017 data sheet

arduino i2c multiplexer