I have a Powertip 16x2 LCD display. I have connected it as normal, for 4-bit usage. I connected it to my arduino and uploaded a "Hello World!" sketch; but got no response. I then realised that the back of the LCD display, where the control chips are, was heating up. At this point i disconnected the power!
Does anyone know whats wrong? The LCD is old but hasn't been used before.
Cheers, Ben.
Things getting hot is usually a sign of incorrect connections. Maybe the connector is reversed end-for-end compared to what you expected?
I wired it whilst refering to the diagram: http://www.rapidonline.com/netalogue/specs/57-0913.pdf
And the LCD has the connector points labelled; 15, 16, 1 - 14
double check you have connected pin 1 to ground and pin 2 to +5 volts
Make sure that you reading the connector pinout from the proper side of the board.
The header pins will be mirrored on the wrong side.
(* jcl *)
See my recent struggles with this specific LCD : http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1230125470/0#0
I solved it after reading the extended datasheet (took me a couple of hours). But it kinda works now.
Frank