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:
I2C LCD driver for CCS PIC C compiler Simple Projects
// set the pins on the i2c chip used for lcd connections:
See Design Schematic For More Details.
This allows eight of the pcf8574 and eight of the. Complete documentation on my site: Web pcf8574_lcd = & h4c 'the slave address of the second pcf8574.
Web // Set The Lcd Address To 0X3F For Pcf8574At With A0,A1,A0 Address Line Open, Default Setting.
As shipped, these jumpers are all set to the. If you need more pins here you can find the. This library uses the original wire library for.
Library To Support The Hd44780 Lcd I2C Driven By The Pcf8574 Controller.
Web 3.3v and 5v compatible. Web pcf8574 outputs are directly connected to lcd lines in the following way: A library for driving liquidcrystal displays (lcd) by using the i2c bus and an pcf8574 i2c adapter.
Web A Library For Driving Liquidcrystal Displays (Lcd) By Using The I2C Bus And An Pcf8574 I2C Adapter.
