Hello, I am trying to interface ESP32S2 with a GPIO expander MCP23S18 using SPI in VScode (.c). However the spi.h that I got from the Espressif website is .cpp and therefore I cannot integrate it with my code. I tried sumtoy's library but looks like it does not support ESP32S2. My question is: Is …

Espressif SPI and GPIO expander

gcjr November 3, 2021, 8:58am 2

doesn't the Wire library do what you want?

my interlock.ino uses it to access a similar chip