On Fri, 7 Feb 2003, Joe Smith wrote:

*>I have come across a character LCD with an HD44780 controller, but I am not
*>sure if it works on not. Is there an easy way to test it without wiring it
*>up to a PIC and running some test code?

Connect 5V to Vdd gnd to Vss and gnd to Vlc, then turn on the psu. The
first row (upper) of the display should be 'blacker' then the lower row,
especially if you look at an angle. This would suggest that the controller
is alive. I assume a two row display.

Peter

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