LCD screen controllers

1-wire can write to an LCD screen. Useful for sensor reports, embedded systems, an security feedback.


There are three designs supported by OWFS.

LCD Controller (HD44780 based)

LCD screens

There is a lot of information available
Size limitted to 4x20 (4 lines, 20 characters)
Common sizes:
  • 1x16
  • 1x20
  • 2x16
  • 2x20
  • 4x16
  • 4x20
Note that the LCD screen returns no data to the program, so the size cannot be deduced automatically.

See an example of display and code