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ESP-IDF: Code for PCA8574

Posted: Tue Jul 10, 2018 12:35 pm
by uwe_pg
Hello,

can anyone help me. A little example for the "I2C 8-bit I/O expander module" PCA8574AD. It worked fine with the libs on Arduino, but with esp-idf I have some problems.

Bye

Re: ESP-IDF: Code for PCA8574

Posted: Wed Jul 11, 2018 3:55 am
by kolban

Re: ESP-IDF: Code for PCA8574

Posted: Wed Jul 11, 2018 7:10 am
by uwe_pg
Thanks for the quick answer.

I forgot an important thing: I need a C sample and not CPP.