Shoryuken

Turn off LCD backlight

4 posts in this topic

Hi again :P

 

is there a way to turn off LCD's backlight ?

I looked into Liquid Crystal library but found nothing like "turn on/off backlight"...

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Hello,

 

There was not enough pins left over to provide control over the backlight unfortunately. If you want to turn it off you will need to do it manually. The last two pins 15 and 16 of the LCD are for the backlight, if you unscrew the LCD and bend those two pins up so they are not inserted into the socket that should disable the backlight...

 

Jack.

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You could also wire a switch inline between either pin 15 or 16 so that you can disconnect the backlight. You could put the switch on the prototyping area on the board...

 

Jack.

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