LCD Module 1602A, STN, BLUB, 16 Character x 2 Line,  5 x 8 Dots, by the direct (Raspberry PI BCM2835 GPIO) or I2C (PCF8574) wiring.
Conditions: Default planing policy but realtime one preferred.
Author: Roman Savochenko <roman@oscada.org>
Version: 1.1.1