Interfacing an LCD screen (JE-AN 1286404)

[ME109e]

Hi guys,

I'm using or trying to use a pic 18f4520 with a LCD screen: JE-AN 1286404.

Does anyone know how to wire LCD modules up? I haven't used one before so I don't want to make a mistake an blow the unit up!

I know where the data pins go and the cs, rd and reset go, but I don't know the rest.

I haven't found a datasheet for the module, and normally i wouldn't have touched it, but it was cheap so I thought I'd give it a go.

I'm trying to build a handheld version of a PC's "Hyper Terminal" program, so I can diagnose comms without a PC.

Any help would be appreciated.

Adam

[flatlander]

Try:

* 1: VDD is connected to +5V
* 2: VSS is connected to GND
* 3: V0 - LCD operating voltage is connected from a 20k Ohm POT
*4-11: Data Bus 0 to 7 is connected to port d
*12: Chip Select 2 is connected to B1
*13: Chip Select 1 is connected to B0
*14: Reset is connected to C0
*15: R/W - Read or Write is connected to B4
*16: D/I - Data or Instruction is connected to B2
*17: Enable is connected to B5
*18: Negative voltage is also connected to the 20k Ohm POT
*19: Positive voltage for LED backlight is connected to +5V
*20: Negavtive voltage for LED backlight is connected to GND

[PCM programmer]

This post in another forum, says it has an additional part number:
HQM1286404
http://www.picbasic.org/forum/showthread.php?t=5859

This thread in the CCS forum tells how to use it with CCS:
http://www.ccsinfo.com/forum/viewtopic.php?p=55734

[ME109e]

Hi guys,

Thanks for the info, much appreciated.

I'll give things a go and see where I get. If I run into any issues I call back.

Cheers