MCP23017 Library Port

Firmware Libraries
46

Thanks @MORA and @peter_a ! (LINK)

So, to summarize how I understand it:
For the above “toggle.ino” sketch I will change as shown in BOLD:

Adafruit_MCP23017 mcp;
Adafruit_MCP23017 secondmcp;

void setup()
{

mcp.begin(); //implicit (0)
secondmcp.begin(1);

mcp.pinMode(0, OUTPUT);
mcp.pinMode(16, OUTPUT);
// I assume chip 1 has pins 0 - 15 and chip 2 has pins 16 - 31

}

// flip the pin #0 and #16 up and down

void loop()
{
delay(100);

mcp.digitalWrite(0, HIGH);
mcp.digitalWrite(16, HIGH);

delay(100);

mcp.digitalWrite(0, LOW);
mcp.digitalWrite(16, LOW);

}

Do you think this is correct?