ESP8266 Community Forum

- Sat Aug 13, 2016 2:31 pm #52862 Thanks! That looks like the lib I am trying to get working and I just don't seem to be able to get it working.
CS is pulled low and is on GPIO15 using the following per example:
MCP iochip(0,15); where the object is iochip @ address zero and CS on GPIO15.
Everything else looks correct....... curious.

If we knew what we were doing, it wouldn't be called research.
- Albert Einstein

- Sat Aug 13, 2016 2:35 pm #52863 Erhardd, I was mistaken. upon looking at both .h files side by side, they are different.
I will try it and report back.

If we knew what we were doing, it wouldn't be called research.
- Albert Einstein

- Sat Aug 13, 2016 2:39 pm #52864 Yes, you have to init something like:
#include <Mcp23s17.h>
#define MCP23S17_SLAVE_SELECT_PIN 2
MCP23S17 Mcp23s17_1 = MCP23S17(MCP23S17_SLAVE_SELECT_PIN,0x1);

- Sat Aug 13, 2016 3:00 pm #52867 Just FYI, attached are the .h and the .cpp files I have been trying to use.
It has more flexibility with the 2 ports than the .h file you sent - if I can get it working <grin>.

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If we knew what we were doing, it wouldn't be called research.
- Albert Einstein