MCP23x1y Port Expander
I compare the members of the MCP23x1y family: MCP23016, MCP23017, MCP23S17, MCP23018, MCP23S18 and show how to control them.
Read MoreI compare the members of the MCP23x1y family: MCP23016, MCP23017, MCP23S17, MCP23018, MCP23S18 and show how to control them.
Read MoreThe 16-bit I/O port expander MCP23017 is introduced including a library. The functions are explained by sketches and circuits.
Read MoreThe counter ICs 4040, 4017 and 4033 will be presented. In addition to the counter function, I explain how to use the counters for port expansion.
Read MorePort expansion for the ESP-01 using the MCP23017, PCF8574 and the 74HC595 shift register are explained in this post. With circuits and sample sketches.
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