There are modules that can be soldered or stacked to the display. Backlight, scroll, cursor and entrymode control. Web the pcf8574 is a common, and slightly unusual i2c expander for folks who are used to the mcp230xx series:
Interfacing Arduino with I2C LCD Arduino Projects
// set the pins on the i2c chip used for lcd connections:
Web Pcf8574_Lcd = & H4C 'The Slave Address Of The Second Pcf8574.
See design schematic for more details. Web // set the lcd address to 0x3f for pcf8574at with a0,a1,a0 address line open, default setting. Web pcf8574 outputs are directly connected to lcd lines in the following way:
Library To Support The Hd44780 Lcd I2C Driven By The Pcf8574 Controller.
This allows eight of the pcf8574 and eight of the. A library for driving liquidcrystal displays (lcd) by using the i2c bus and an pcf8574 i2c adapter. Web 3.3v and 5v compatible.
If You Need More Pins Here You Can Find The.
As shipped, these jumpers are all set to the. Complete documentation on my site: Web a library for driving liquidcrystal displays (lcd) by using the i2c bus and an pcf8574 i2c adapter.
This Library Uses The Original Wire Library For.
