The 1-Wire LCD controller connects to a Dallas 1-Wire network and functions as a slave device. This controller could be used to display information on a LCD under control of a 1-Wire network master. The 1-Wire LCD controller supports different standard text liquid crystal character displays (e.g. 2 Lines x 16 Characters LCD).
The 1-Wire LCD controller has the following built-in functionality:
Unique serial number.
Support for a wide range of LCDs, from 1 Line x 8 Characters up to 4 Line x 20 Characters.
Built-in LCD initialize: to ensure that the LCD is ready to display text after power-up.
Easy text displaying via scratchpad.
Direct LCD register and data memory access to enable full control of the LCD.
LCD power ON/OFF control.
LCD back-light ON/OFF control.
3 Open collector general-purpose input/output pins (GPIO) and 1 general-purpose input only pin (GPI).
All inputs are sampled at 25mS intervals, any detected change will increment the input's event counter (counts up and down going events).
Open collector outputs can sink 10mA of current (direct LED drive with internal 470-Ohm resistor).
112 bytes of EEPROM (Non-volatile storage).
Please notice that no LCD is included and has to be bought separately.
The power from DS9490R is sufficient to run both the controller + a LCD..
The LCD Controller is supported by OWFS. http://owfs.sourceforge.net/