2025-07-03: v2.0.0 - read()and write() have been replaced by port_input(), port_output() and other pin operations, as jm_PCF8574 is not inherited from Printor Stream Arduino classes. Also, the I2C bus ...
// Initializes a 16x2 LCD over I2C using the LiquidCrystal_I2C library and displays two lines of text. // Buy this module: https://shillehtek.com/products/pcf8574-i2c ...
A while ago I received a couple of I/O port expander modules that use the I 2 C protocol. Using that Chinese module, you can use only the SDA and SCL pins of your Arduino, or any microcontroller ...
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