This examples uses: 1. PCF8574T I2C Interface 8-bit I/O expander The PCF8574/74A provides general-purpose remote I/O expansion via the two-wire bidirectional I2C bus (serial clock (SCL), serial data ...

Experimental Arduino library for the I2C LCD display, typical 20x4 characters. The library is inspired by the excellent New-LiquidCrystal library by F. Malpartida. Therefore the interface is kept ...