RPLCD

by Danilo Bargen

RPLCD is the Raspberry Pi equivalent of the Arduino LiquidCrystal_I2C library — it drives the same PCF8574-backed HD44780 character LCDs, just from Python over smbus2 instead of the Arduino I2C stack. The `CharLCD('PCF8574', address, cols=, rows=)` constructor mirrors the Arduino library's `(address, cols, rows)` pattern closely enough that porting code between the two boards is mostly a syntax change, not a redesign. One difference worth knowing: RPLCD's `cursor_pos` takes a `(row, col)` tuple, whereas the Arduino library's `setCursor(col, row)` takes the arguments in the opposite order — an easy mistake when moving code between the two.