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633 Not Working...

kitplummer

New member
I've recently received a 633 module for prototying purposes. I've plugged it into my "COM1" serial port via the CF provide serial cable. I am attempting to test it with the provided Windows-based utility, but nothing happens.

Am I missing something here? I don't need to power the backlight to just view character presentation do I?

I am not getting anything on the screen, no splash, no nothing...

TIA,

Kit
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Last edited:
USB LCD Displays - Graphic and Character LCDs with a Keypad

kitplummer

New member
Must have at least 5v supply to power pins.

I have found that you must have at least 5v connected to the display (not just the serial connector). 12v to the display isn't requisite, however you won't get the backlight and I don't know about the keypad...

Kit
 
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