LCD's and Sleeping Pics

[andybarrett1]

Hello

Thank you for the quick read…. Posted this elsewhere by mistake :-)

Is it deemed correct to drive a 16x20 LCD and back light direct from a single output Pin.

Don't worry, when I say direct I "DO" mean via a Transistor or Darlington buffer….

I am using an interrupt routine which will put the PIC to sleep…but the LCD is hung on the supply rails, The LCD will stay on, so was thinking if I hang it on a spare output port it can be shutdown before the PIC goes to sleep.

Or is there a more elegant way of doing it??

Thank you again

Andy