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I2C LCD Daemon for Newhaven I2C Character LCD Modules
Hugo Vincent, June 2009
This is a trivial interface for Newhaven LCD module connected to a Linux machine
over an I2C interface. Any standard Linux I2C bus should work (including USB I2C
adapters that correctly hook into the i2c kernel driver framework).
Opens a named pipe at /dev/lcd which can be written to by other applications.
Text written to this file will appear on the LCD.
Send a bell ('\b')to clear the screen.
Tested with NHD-0420D3Z-FL-GBW (Digikey part number NHD-0420D3Z-FL-GBW-ND).
http://www.newhavendisplay.com/specs/NHD-0420D3Z-FL-GBW.pdf
http://www.newhavendisplay.com/index.php?main_page=product_info&cPath=253&products_id=922
Hardware note:
To enable I2C mode of LCD, Pads of R1 must be jumpered on back of LCD. See
the manual for the LCD module.
About
Linux user space driver/daemon for Newhaven I2C character LCD modules.
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