Hello. I have this display that I found here in my mess. It is 1 line with 6 digits. And I have here an ESP WEMOS D1. I would like to do some tests. I downloaded a library for the PCF8574 in the hope that it would also work for this model so it didn't give any signal. Does anyone know any libraries I can use for testing ? Communication is I2C (SDA and SCL pins D2 and D1 of Wemos)
The PFC8576 is an LCD driver with I2C interface. The PFC8674 is a simple I2C I/O expander that can be used as an interface to a separate LCD driver chip.
You need code that implements the interface for the PCF8576. See the data sheet.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.