RandomOrbit wrote: > Thanks -- I thought that this might be the case. However, I'm not > sure how it's wired. There are three connections -- so is it really > a potentiometer? If so, does anyone know what type to use? > > Thanks again. > > --- In [email protected], Peter O <[EMAIL PROTECTED]> wrote: > >>With a little research into the HD44780 interface I found that pin > > 3 is > >>the contrast adjustment. >>see http://home.iae.nl/users/pouweha/lcd/lcd0.shtml#pin_assignment >> >>The special resistor with pin 3 'in the middle' is a variable >>resistor. Just like the volume adjust knob on your radio. >> >>So this variable resistor is used to adjust the contrast. >> >>Peter
Why toppost ? Normal potmeter for contrast is 5 K Ohm
