Conceptual question please

Using Arduino Programming Questions
1

Hi everyone.
I am not clear the few concepts below, would you please explain it in detail?

Wire.begin();
Wire.begin(21, 22);
mcp.begin();
mcp.begin_I2C();

Thanks
Adam

2

What do you think is happening in each line ?

Have you examined the Wire and mcp library code ?

1 Like
3

Adafruit_MCP23X17 mcp;

1 Like
4

GREAT!
Thank you johnwasser.

5

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.