ComputerVoltageSources

--- In ComputerVoltageSources@yahoogroups.com
> Backlight is 160 mA.  Sounds like the 4 pin interface means the LCD
> microcontroller is on another board.

The backlights for these LCD controllers do take a lot of power.  My 
first display was a VFD which took 400 mA of +5!!! My 8x2 takes about 
70 mA of +5.  I would suspect that we wouldn't use this display at 
full 160 mA backlight.  Generally, they are very bright!  Some 
experimentation would be needed to determine an appropriate 
brightness.  The A and K for the backlight are on separate pins which 
means we could power these from either a +5 or a +15 supply if 
desired.

The LCD logic is only a couple of mA.  The controller is the same.  
The MIDI spec is 5 mA.  Total display/MIDI power without the backlight 
is probably around 10 mA.  I think you will find, however, that the 
AtomPro28 might consume more than 25 mA.  My PSIM consumes 70 mA with 
all the LEDs on.  I've not measured it with the LEDs off.

> > Doing a little research, I found the following Lumex LCD.
> > LCM-S01602DSF/C
> > LCD 16x2 STN Y/G LED backlit
> > $13.36 available from stock from either Mouser or Digi-Key
> > Board size:  3.346 x 1.181 inches

This looks like a nice display.  Crummy data sheets, though.  I assume 
the Samsung controller is compatible with the Hitachi.  There are some 
features built into the controller that it would be nice to know if 
are implemented in the display module.  For example, what is the 
character font (I can't find it), how many programmable characters, 
etc.  I assume this is a 5x7 with an 8th row for cursor.  I'll keep 
looking for a complete data sheet.

Dave