bigal_scorpio
Active Member
Hi to all,
Firstly glad to see the site is ok! I never realised the complexity and space needed for the sites operation. Good work getting it going so quickly. Praise be to the Master.
Now onto my problem. I am presently trying to figure out how to multiplex a number of inputs to a PIC ic with the connections to an LCD (using 4bit mode).
I can understand how to do the PIC part as in setting the ports to either input to read the buttons or output to drive the LCD but I am confused as to what effect a button press would have on the LCD?
I am using a Gnd signal to the PIC as a signal of button pressed and I cannot really change this as that is how the device I intend to test works.
Any ideas would be welcome on the subject.
Al
PS if I get time tonight I may make a breadboard circuit and try it physically.
Firstly glad to see the site is ok! I never realised the complexity and space needed for the sites operation. Good work getting it going so quickly. Praise be to the Master.
Now onto my problem. I am presently trying to figure out how to multiplex a number of inputs to a PIC ic with the connections to an LCD (using 4bit mode).
I can understand how to do the PIC part as in setting the ports to either input to read the buttons or output to drive the LCD but I am confused as to what effect a button press would have on the LCD?
I am using a Gnd signal to the PIC as a signal of button pressed and I cannot really change this as that is how the device I intend to test works.
Any ideas would be welcome on the subject.
Al
PS if I get time tonight I may make a breadboard circuit and try it physically.