3rd new topic i start today.. i am waiting for S1 to knock at my door…
anyway, i have a doubt about brightness and contrast with 2 GLCDs running on the same core:
-i assume that i can use the same pot/trimmer to control the brightness, the 2 GLCDs are the same type so it shouldn t be a problem
-about the contrast i have come to the following conclusions:
A- i can use a stereo pot to control the bias voltage for each GLCD
B- i can mix in parallel the two Vee outputs of the GLCD and use a single pot to send it back to the GLCDs Vo (sounds dangerous)
C- i can use one single Vee and one single pot to drive both the GLCDs Vo (that may overload the internal converter)
so choice A seems to be the best one.
Anyway it s not so easy to find stereo pots pcb mount 10k linear etc etc, especially with a nice and thin shaft like ;
RS electronics: RS Stock no. 263-2980 but they are not dual pots
Conrad has these ones:
but i can t really understand if they will fit just a normal trimmer, does anybody know the trimmer type they are meant to?
txx
Simone