--- 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