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Topic: nokia 5110 lcd problem (Read 682 times) previous topic - next topic

kesikesi

Hi there,
when i was trying to use the nokia 5110 lcd, i connected its GND to the 3.3v output from my microcontroller and its VCC to the ground. Will this damage the lcd? Now my screen only has a backlight but nothing else. I am not sure about my code. But maybe the lcd damaged already?
Thanks !

guix

#1
Oct 07, 2012, 08:02 am Last Edit: Oct 07, 2012, 08:04 am by guix Reason: 1
Ouch, yes you may have damaged it.. I think, if there is no reverse current protection on it, it's probably toasted :~

But, show the code, and say which arduino you use.

dhenry

Quote
I am not sure about my code. But maybe the lcd damaged already?


Those devices show nothing when the code isn't right. So your lcd may not have been damaged.

I would find a working piece of code and see if indeed the lcd has gone.

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