I have a cheap 128x64 graphic lcd (12864ZW) and got it all working etc.
I'm trying to do a small project that when a push switch (may change to proximity sensor) is pressed the LCD displays some messages/graphics etc. then clears until activated again. As i'm doing as a standalone project and want to save battery (going to use a 9V battery) can I just plug the +5V into a pin on the Arduino and when the switch is pressed make that pin on to supply the +V to the screen?
Or will I need to do this with a relay of some sort?
Going to do a blog on my project but need some pointers on getting the breadboard prototype to work.
